Tuesday, January 24, 2023

OUTLAW TIPPING AS A WAGE; $15 MINIMUM
Is tipping getting out of control? Many consumers say yes





Tipping Fatigue
A tipping option is displayed on a card reader at a restaurant in Schaumburg, Ill., Tuesday, Jan. 10, 2023. Tipping fatigue, it seems, is swarming America as more businesses adopt digital payment methods that automatically prompts customers to leave a gratuity. (AP Photo/Nam Y. Huh)

HALELUYA HADERO
Mon, January 23, 2023 

NEW YORK (AP) — Across the country, there’s a silent frustration brewing about an age-old practice that many say is getting out of hand: tipping.


Some fed-up consumers are posting rants on social media complaining about tip requests at drive-thrus, while others say they’re tired of being asked to leave a gratuity for a muffin or a simple cup of coffee at their neighborhood bakery. What’s next, they wonder -- are we going to be tipping our doctors and dentists, too?

As more businesses adopt digital payment methods, customers are automatically being prompted to leave a gratuity — many times as high as 30% — at places they normally wouldn't. And some say it has become more frustrating as the price of items has skyrocketed due to inflation, which eased to 6.5% in December but still remains painfully high.

“Suddenly, these screens are at every establishment we encounter. They're popping up online as well for online orders. And I fear that there is no end,” said etiquette expert Thomas Farley, who considers the whole thing somewhat of “an invasion.”

Unlike tip jars that shoppers can easily ignore if they don’t have spare change, experts say the digital requests can produce social pressure and are more difficult to bypass. And your generosity, or lack thereof, can be laid bare for anyone close enough to glance at the screen — including the workers themselves.

Dylan Schenker is one of them. The 38-year-old earns about $400 a month in tips, which provides a helpful supplement to his $15 hourly wage as a barista at Philadelphia café located inside a restaurant. Most of those tips come from consumers who order coffee drinks or interact with the café for other things, such as carryout orders. The gratuity helps cover his monthly rent and eases some of his burdens while he attends graduate school and juggles his job.

Schenker says it's hard to sympathize with consumers who are able to afford pricey coffee drinks but complain about tipping. And he often feels demoralized when people don’t leave behind anything extra — especially if they’re regulars.

“Tipping is about making sure the people who are performing that service for you are getting paid what they’re owed,” said Schenker, who’s been working in the service industry for roughly 18 years.

Traditionally, consumers have taken pride in being good tippers at places like restaurants, which typically pay their workers lower than the minimum wage in expectation they’ll make up the difference in tips. But academics who study the topic say many consumers are now feeling irritated by automatic tip requests at coffee shops and other counter service eateries where tipping has not typically been expected, workers make at least the minimum wage and service is usually limited.

“People do not like unsolicited advice,” said Ismail Karabas, a marketing professor at Murray State University who studies tipping. “They don’t like to be asked for things, especially at the wrong time.”

Some of the requests can also come from odd places. Clarissa Moore, a 35-year-old who works as a supervisor at a utility company in Pennsylvania, said even her mortgage company has been asking for tips lately. Typically, she’s happy to leave a gratuity at restaurants, and sometimes at coffee shops and other fast-food places when the service is good. But, Moore said she believes consumers shouldn’t be asked to tip nearly everywhere they go — and it shouldn’t be something that’s expected of them.

“It makes you feel bad. You feel like you have to do it because they’re asking you to do it,” she said. “But then you have to think about the position that puts people in. They’re paying for something that they really don’t want to pay for, or they’re tipping when they really don’t want to tip — or can’t afford to tip — because they don’t want to feel bad.”

In the book “Emily Post’s Etiquette,” authors Lizzie Post and Daniel Post Senning advise consumers to tip on ride-shares, like Uber and Lyft, as well as food and beverages, including alcohol. But they also write that it’s up to each person to choose how much to tip at a café or a take-out food service, and that consumers shouldn’t feel embarrassed about choosing the lowest suggested tip amount, and don't have to explain themselves if they don’t tip.

Digital payment methods have been around for a number of years, though experts say the pandemic has accelerated the trend towards more tipping. Michael Lynn, a consumer behavior professor at Cornell University, said consumers were more generous with tips during the early days of the pandemic in an effort to show support for restaurants and other businesses that were hard hit by COVID-19. Many people genuinely wanted to help out and felt sympathetic to workers who held jobs that put them more at risk of catching the virus, Lynn said.

Tips at full-service restaurants grew by 25.3% in the third quarter of 2022, while gratuities at quick or counter service restaurants went up 16.7% compared to the same time in 2021, according to Square, one of the biggest companies operating digital payment methods. Data provided by the company shows continuous growth for the same period since 2019.

As tip requests have become more common, some businesses are advertising it in their job postings to lure in more workers even though the extra money isn’t always guaranteed.

In December, Starbucks rolled out a new tipping option on credit and debit card transactions at its stores, something a group organizing the company's hourly workers had called for. Since then, a Starbucks spokesperson said nearly half of credit and debit card transactions have included a gratuity, which - along with tips received through cash and the Starbucks app - are distributed based on the number of hours a barista worked on the days the tips were received.

Karabas, the Murray State professor, says some customers, like those who’ve worked in the service industry in the past, want to tip workers at quick service businesses and wouldn’t be irritated by the automatic requests. But for others, research shows they might be less likely to come back to a particular business if they are feeling irritated by the requests, he said.

The final tab might also impact how customers react. Karabas said in the research he did with other academics, they manipulated the payment amounts and found that when the check was high, consumers no longer felt as irritated by the tip requests. That suggests the best time for a coffee shop to ask for that 20% tip, for example, might be on four or five orders of coffee, not a small cup that costs $4.

Some consumers might continue to shrug off the tip requests regardless of the amount.

“If you work for a company, it's that company's job to pay you for doing work for them,” said Mike Janavey, a footwear and clothing designer who lives in New York City. “They're not supposed to be juicing consumers that are already spending money there to pay their employees.”

Schenker, the Philadelphia barista, agrees — to a certain extent.

“The onus should absolutely be on the owners, but that doesn’t change overnight," he said. "And this is the best thing we have right now.”



The Road To Decarbonization: Ammonia-Powered Trucks Take the Lead

Editor OilPrice.com
Sun, January 22, 2023 at 1:00 PM MST·3 min read

This week, the world’s first ammonia-powered, zero-emissions semi truck was unveiled, potentially signaling the dawn of a new era for the shipping and transportation industry. Like Tesla’s semi truck, Brooklyn company Amogy’s ammonia-powered truck holds about 900 kWh of energy. Unlike the Tesla semi, it takes just about eight minutes to refuel. And, according to Amogy, their new model has five times the system-level energy density of batteries.

For some time now, hydrogen fuel cells have been touted as the future power source of the shipping industry, but ammonia has several benefits in comparison to hydrogen. For one thing, it exists as a liquid at room temperatures, making shipping and storage a whole lot easier for ammonia than hydrogen. “Hydrogen either needs to be heavily compressed to around 700 bar, or else kept cryogenically cooled as a liquid, to just 20.28 K (−252.87 °C; −423.17 °F),” a recent report by New Atlas explained, before adding that, “both of these are energy-intensive processes.”

Like hydrogen, ammonia is only as clean as the energy that’s used to make it. But green ammonia holds great promise for helping to decarbonize some of the most fuel-intensive and high emissions industries that our economy is built on. At present, transportation is the single highest emitting sector in the United States, representing 27% of overall greenhouse gas emissions according to figures from the Environmental Protection Agency (EPA). And over a quarter of transportation emissions come from medium- and heavy-duty trucks.

Avoiding the worst impacts of climate change will require that the United States, the country with the second-most greenhouse gas emissions in the world after China, makes good on its climate pledges. That will require a major transformation of the transportation industry on a pretty short timeline. The EPA has been wrestling with how to do this.




At the beginning of last year, the EPA proposed two different pathways to drastically decreasing nitrous oxide [N2O] emissions in the trucking industry: “a two-step process with standards getting progressively tighter in model years (MY) 2027 and 2031, or a one-step standard in 2027 that would be less aggressive in cutting emissions.” 

N2O is a greenhouse gas that accounts for just 7% of emissions, but which stays in the atmosphere for over 100 years and has a warming impact 300 times stronger than carbon dioxide. The new EPA standards are more than 80% stronger than the 2021 iteration, and the EPA says that they will increase the lifespan of governed vehicles by 1.5 to 2.5 times, and yield emissions warranties that are from 2.8 to 4.5 times longer than current standards.

This new ruling has caused significant unease in the trucking industry, according to transportation and shipping news outlet Freight Waves. The Truck and Engine Manufacturers Association (EMA) President Jed Mandel says that the EPA’s new ruling “is very stringent and will be challenging to implement” and that “ultimately, the success or failure of this rule hinges on the willingness and ability of trucking fleets to invest in purchasing the new technology to replace their older, higher-emitting vehicles.”


While every advance in low-emissions trucking technology and infrastructure is an exciting and important step for the imperative of decarbonizing national and global supply chains, the Tesla Semi and the Amogy ammonia-powered truck are all but useless if they’re not affordable and accessible for truckers and trucking companies. These technologies are still in their nascency, however, and the hope is that with continued improvements and targeted policy measures they can soon be scalable enough to make a change that helps the planet without hurting the truckers that make it run.

By Haley Zaremba for Oilprice.com


What did people eat 9,000 years ago? Hunting cave reveals glimpses of diets in Mexico

Moira Ritter
Mon, January 23, 2023 

Keto. Mediterranean. Vegan. Vegetarian. Pescatarian. The list of diets people follow in 2023 goes on and on and on.

Now, archaeologists in Mexico might have a new addition: the prehistoric hunter-gatherer diet.

Buried beneath thousands of years of sediment, experts recently unearthed the remains of several ancient groups dating back up to 9,000 years, according to a news release from Mexico’s National Institute of Anthropology and History.


Carving debris, including tools used by ancient groups, were buried beneath the cave’s floor.

The Cueva de la Paloma — which is about 300 miles southeast of Mexico City in the Oaxaca Valley — was first inhabited by hunter-gatherers on a seasonal basis as early as 7516 B.C., evidence shows. Archaeologists unearthed debris from basic tools, givings greater insight to how hunter-gatherers collected their meals.

Archaeologists unearthed four distinct layers of sediment spanning several thousand years.

Cave paintings covered one of the cave’s walls.

There were also traces of charred birds and turtles that had been exposed to fire and stoves with the remains of plants, the institute said. Of the plant remains found, archaeologists have identified pollen from about 40 mostly wild species, including yucca, chile and guava.

Pumpkin seed remains were among the diet indicators found inside the cave.

A hearth with charred botanical remains inside, which experts believe to be agave leaves.

More than 3,500 years later — between 1276 to 1390 A.D. — the cave was used by another group of Mexican people: the Zapotecs.

The Zapotecs used the cave to leave offerings, including this pitcher.

Also known as the “cloud people,” the Zapotecs used the cave to leave offering, such as a set of miniature vessels and an urn-like pitcher discovered by archaeologists, according to the institute.

Google Translate was used to translate the news release from Mexico’s National Institute of Anthropology and History (INAH).
Answer Man: As Duke builds renewable energy, how long do solar panels, wind turbines last?

Andrew Jones, Asheville Citizen Times
Tue, January 24, 2023 

ASHEVILLE - Power is infinite, right? Electricity doesn’t run out unless you stop paying the bill, right?

Not right. Today’s question probes something we often forget about: How long does power-providing equipment last? Moreover, with state and nationwide moves toward renewable energy, how long do emerging energy tools last?

Got a question for Answer Man or Answer Woman? Email Interim Executive Editor Karen Chávez at KChavez@citizentimes.com and your question could appear in an upcoming column.

Question: Duke Energy in our area is increasing the amount of solar energy that they are producing. Duke also has indicated that it plans to produce wind turbine energy offshore on the North Carolina coastline. What is the life expectancy of solar panels and wind generators before they need to be replaced? What types of routine maintenance is required to maximize the amount of energy generated?

Answer: There is a little variation, but there are also some solid ranges.

More:  




Let’s hone in specifically on Duke Energy’s answers to these questions, starting with solar power.

The company has a helpful crash course on renewable energy maintenance titled, fittingly, “Sustainable Life-Cycle Management for Renewables.”

DESS eBook Sustainable Life... by Andrew Jones

“The typical lifespan of solar PV panels is approximately 20-30 years,” Duke’s e-book explains. “The life span for solar power inverters is upwards of 10 years.”

To be clear, “PV” stands for photovoltaic and a panel is what you picture in your head when you think of solar power.

You may not be familiar with “power inverters,” so allow the U.S. Office of Energy Efficiency & Renewable Energy to explain:

“An inverter is one of the most important pieces of equipment in a solar energy system. It’s a device that converts direct current (DC) electricity, which is what a solar panel generates, to alternating current (AC) electricity, which the electrical grid uses.”

Related:Buncombe votes for expansion of NC's largest public solar cluster, zero-emission vehicles

So, inverters need to be replaced more often than panels and solar power owners are looking at a few decades before the equipment may need complete replacement.

However, that’s not the only option.

According to Duke’s e-book, there is “decommissioning,” which means removing and entirely replacing a system in some cases and there is “recommissioning” or “repowering” which is essentially maintenance.

“Recommissioning or repowering is the process of finding and replacing underperforming – and potentially non-working – components of existing solar PV and/or battery energy storage systems,” the e-book explains. “If the system is failing systemically, a full system replacement is probably the right way to go. However, most systems are in better condition than their performance might suggest.”

Duke extols the “value” of “great maintenance schedules” that include cleaning solar panels and taking advantage of equipment warranties.

Then there’s the wind turbine, a monster of a tool for generating clean energy and the star of some of Duke’s sustainability marketing.

Related:Answer Man: Will mail distribution facility return to Asheville? 2020 mail-in ballots?

Related:Answer Woman: What happened to the city's $74M in bond projects? 2023 deadline?

Again, to narrow the scope here, let’s focus on Duke and one of its latest endeavors, an offshore wind energy lease in the Carolina Long Bay, just southeast of Wilmington. A Duke subsidiary in May 2022 was named a provisional winner of a $155 bid to lease turbines there.

According to a news release, the company could begin “site assessment” there in 2023 and “could support up to 1.6 gigawatts of potential offshore wind energy, enough to power nearly 375,000 homes.”


Fully assembled wind turbines undergoing tests and adjustments before being towed out to the site of the Hywind Tampen wind farm, about 85 miles off the Norwegian coast.

Construction will take at least 10 years, Duke estimates.

The turbines at this site could have roughly 15-megawatt output. It’s not immediately clear what brand of turbine this project will use, but turbines have a roughly 20-30-year lifecycle.

Page 19 of a report titled “Building North Carolina's Offshore Wind Supply Chain” references a 30-year lifespan.

The U.S. Bureau of Ocean Energy Management concurs.

In a helpful overview of offshore wind farms titled “Navigational, design, and decommissioning concerns for offshore wind facilities: Fact Sheet,” the BOEM addresses the lifespan question.

“A typical offshore wind lease is valid for approximately 30 years,” the fact sheet states. “Before facilities may be installed under an approved Construction and Operations Plan, a lessee must provide financial assurance that covers the decommissioning of all structures, cables, and obstructions.”

Andrew Jones is an investigative reporter for the Asheville Citizen Times, part of the USA TODAY Network. Reach him at @arjonesreports on Facebook and Twitter, 828-226-6203 or arjones@citizentimes.com. Please help support this type of journalism with a subscription to the Citizen Times.

This article originally appeared on Asheville Citizen Times: As Duke Energy grows, how long do solar systems, wind farms last?
Giant Wind Turbines Keep Mysteriously Falling Over. This Shouldn't Be Happening.

Tim Newcomb
POP MECH
Mon, January 23, 2023 



Turbine failures are on the uptick across the world, sometimes with blades falling off or even full turbine collapses.

A recent report says production issues may be to blame for the mysterious increase in failures.

Turbines are growing larger as quality control plans get smaller.

The taller the wind turbine, the harder they fall. And they sure are falling.

Wind turbine failures are on the uptick, from Oklahoma to Sweden and Colorado to Germany, with all three of the major manufacturers admitting that the race to create bigger turbines has invited manufacturing issues, according to a report from Bloomberg.

Multiple turbines that are taller than 750 feet are collapsing across the world, with the tallest—784 feet in stature—falling in Germany in September 2021. To put it in perspective, those turbines are taller than both the Space Needle in Seattle and the Washington Monument in Washington, D.C. Even smaller turbines that recently took a tumble in Oklahoma, Wisconsin, England, and Colorado were about the height of the Statue of Liberty.

Turbines are falling for the three largest players in the industry: General Electric, Vestas, and Siemens Gamesa. Why? “It takes time to stabilize production and quality on these new products,” Larry Culp, GE CEO, said last October on an earning call, according to Bloomberg. “Rapid innovation strains manufacturing and the broader supply chain.”

Without industrywide data chronicling the rise—and now fall—of turbines, we’re relying on industry experts to note the flaws in the wind farming. “We’re seeing these failures happening in a shorter time frame on the new turbines,” Fraser McLachlan, CEO of insurer GCube Underwriting, told Bloomberg, “and that’s quite concerning.”

The push to produce bigger wind-grabbing turbines has sped production of the growing apparatuses. Bloomberg reports that Siemens has endured quality control issues on a new design, Vestas has seen project delays and quality challenges, and GE has seen an uptick in warranty costs and repairs. And this all comes along with uncertain supply chain issues and fluctuating material pricing.

With heights stretching taller than 850 feet, blades 300 feet long, and energy generation abilities ratcheting up accordingly, the bigger the turbine, the more energy it can capture. But the bigger the turbine, the more that can go wrong—and the farther it falls.

What are the problems faced by renewable energy?



The challenges faced by the renewable energy industry are many. Political pressures, government policies, corporate influence, age-old infrastructure, lack of proper battery storage system, and present market scenario stand in its way for a wider adoption worldwide.

Despite these factors, renewable energy has undertaken a global adoption as a means to alleviate climate change. It is free of direct pollution and carbon emissions. It is the most feasible substitute for fossil fuels. With time it is becoming an inevitable part of the mix of energy production.

The high initial cost of installation.

Carbon emissions are the main cause of global warming. Many efforts have been taken to increase its adoption. However, the cost is an important factor affecting its adoption. One of the stumbling blocks on the way to its development is the high initial cost of installation.

Of all the energy sources, solar as well as wind is the cheapest ones. However, there is a huge difference in the upfront installation cost of a solar power system and a gas-fired plant. The installation cost of largescale solar power systems is around $2,000 per kilowatt. Likewise, for a small-scale residential system, it is around $3,700 and for a new gas-fire plant, it is $1,000 per kW only. Certainly, the wide margin in installation costs matters. This high upfront installation cost makes investors and lenders think of renewables as high risk whereas they find fossil fuel plants more acceptable due to their low installation costs.

Lack of infrastructure


Wind and solar energy can be better investments when lifespan costs are considered. Lack of infrastructure is a barrier to renewable energy development. The present infrastructure is mainly built for fossil fuel plants and nuclear plants.

The existing energy infrastructure needs urgent reform as it is not capable of handling large amounts of renewable energy. most importantly, some of its best sources are left with no infrastructure at all.

The main problem with the power grid is its age. Most electric transmission and distribution lines were constructed during the 1950s and 1960s. It has passed its 50-year life expectancy. Therefore, making them incompetent to meet the demand of the hour and the severe climatic changes.

It is much of a challenge to decide on the size of the solar system. If the system is too small, consequently energy generation will be hard to build. If the solar energy system is too big, therefore it needs a big energy storage system. Without a high-capacity storage system, the energy produced will go to waste.

Power Storage

Most importantly, the lack of power storage at an affordable cost is another drawback. Renewable energy sources generate most of their energy at certain times of the day. Its electricity generation does not match with the peak demand hours. The intermittency of sunshine and wind cannot provide an on-demand power source 24 hours a week. Solar energy and wind are unpredictable. There is volatility in generation and volatility in loads.

Energy generation by the burning of fossil fuels is more consistent. On the other hand, intermittent power generation by renewable energy sources poses a need for an efficient battery storage system. A battery storage system helps to store the surplus energy for later use. It can help with grid instability, thereby preventing blackouts. Technological advancement has improved the longevity and battery capacity of the storage system. Its high cost stands in its way of being wide installation. Battery prices have to come down to make storing of solar energy more cost-effective.

Non-renewable energy monopoly


The Lion share of the current energy market is under non-renewable energy sources. Certainly, this acts as another obstacle. Solar, wind, and other renewable sources of energy have to rival the well-established fossil fuel industry. Even though the government is providing rebates and other support for solar energy, the fossil fuel industry has massive support from the government.

The Fossil fuel industry hinders the adoption of clean energy by undermining climate change. Renewable energy sources are the best way to deal the climate change. Fossil fuels have been part of human life for a long time. Subsequently, It has its roots deep in the economy of the country.

Lack of knowledge and awareness

Lack of knowledge and awareness of renewable energy technology makes people reluctant to use it. Fossil fuel plants are usually in populated areas. It is a source of employment for the local population as it needs a lot of people to run. The huge property tax from fossil fuel plants is going to support the local community.

Being the world’s largest exporter of coal, Australia is hindering global climate action. Many countries have supported renewable investment since Paris Agreement in 2015. Therefore, renewable investment tops fossil fuel investment in those countries now.

Lack of policies, subsidies, etc


The lack of policies, subsidies, incentives, and regulations that favour renewable energy technologies hinders its wide acceptance. To attract investors, the renewable energy market needs clear policies and legal procedures. In other words, The government has to introduce and implement support policies to strengthen the renewable energy market.

Corporate lobbying, political pressure, and inherent dependence on fossil fuels remain as challenges in shifting to the renewable energy industry from the age-old fossil fuel industry.

The dangers of climate change have started affecting human lives to a great extent. Above all, the adoption of renewable energy is the only way out. With various government incentives and subsidies, the cost of renewable energy has dropped dramatically. Now there is not much difference between them and fossil fuels price per kWh. Certainly, this has helped it capture a place in the energy market.

A hike in electricity prices, a drop in solar prices, and an increased feed-in tariff has made many Australians turn to solar. Australia has over 2.3 million solar rooftop installations. Therefore, most Australians enjoy the benefits of solar energy.

Batteries get hyped, but pumped hydro provides the vast majority of long-term energy storage essential for renewable power – here’s how it works

THE CONVERSATION
Sun, January 22, 2023 

The U.S. has thousands of lakes and reservoirs that could be paired for pumped hydro storage without the need for rivers. Ollo via Getty Images

To cut U.S. greenhouse gas emissions in half within a decade, the Biden administration’s goal, the U.S. is going to need a lot more solar and wind power generation, and lots of cheap energy storage.

Wind and solar power vary over the course of a day, so energy storage is essential to provide a continuous flow of electricity. But today’s batteries are typically quite small and store enough energy for only a few hours of electricity. To rely more on wind and solar power, the U.S. will need more overnight and longer-term storage as well.

While battery innovations get a lot of attention, there’s a simple, proven long-term storage technique that’s been used in the U.S. since the 1920s.

It’s called pumped hydro energy storage. It involves pumping water uphill from one reservoir to another at a higher elevation for storage, then, when power is needed, releasing the water to flow downhill through turbines, generating electricity on its way to the lower reservoir.

Two types of pumped-storage hydropower; one doesn’t require a river. NREL

Pumped hydro storage is often overlooked in the U.S. because of concern about hydropower’s impact on rivers. But what many people don’t realize is that most of the best hydro storage sites aren’t on rivers at all.

We created a world atlas of potential sites for closed-looped pumped hydro – systems that don’t include a river – and found 35,000 paired sites in the U.S. with good potential. While many of these sites, which we located by satellite, are in rugged terrain and may be unsuitable for geological, hydrological, economic, environmental or social reasons, we estimate that only a few hundred sites are needed to support a 100% renewable U.S. electricity system.

Why wind and solar need long-term storage

To function properly, power grids must be able to match the incoming electricity supply to electricity demand in real time or they risk shortages or overloads.

There are several techniques that grid managers can use to keep that balance with variable sources like wind and solar. These include sharing power across large regions via interstate high-voltage transmission lines, managing demand – and using energy storage.

The Kidston pumped hydro project in Australia uses an old gold mine for reservoirs. Genex Power

Batteries deployed in homes, power stations and electric vehicles are preferred for energy storage times up to a few hours. They’re adept at managing the rise of solar power midday when the sun is overhead and releasing it when power demand peaks in the evenings.

Pumped hydro, on the other hand, allows for larger and longer storage than batteries, and that is essential in a wind- and solar-dominated electricity system. It is also cheaper for overnight and longer-term storage.


Off-river pumped hydro energy storage

In 2021, the U.S. had 43 operating pumped hydro plants with a total generating capacity of about 22 gigawatts and an energy storage capacity of 553 gigawatt-hours. They make up 93% of utility-scale storage in the country. Globally, pumped hydro’s share of energy storage is even higher – about 99% of energy storage volume.

Pump hydro projects can be controversial, particularly when they involve dams on rivers that flood land to create new reservoirs and can affect ecosystems.

Creating closed-loop systems that use pairs of existing lakes or reservoirs instead of rivers would avoid the need for new dams. A project planned in Bell County, Kentucky, for example, uses an old coal strip mine. Little additional land is needed except for transmission lines.

Examples from the atlas of off-river reservoirs with the potential to be paired for pumped hydro near Castle Rock, Colorado. Andrew Blakers, CC BY

An off-river pumped hydro system comprises a pair of reservoirs spaced several miles apart with an altitude difference of 200-800 meters (about 650-2,600 feet) and connected with pipes or tunnels. The reservoirs can be new or use old mining sites or existing lakes or reservoirs.

On sunny or windy days, water is pumped to the upper reservoir. At night, the water flows back down through the turbines to recover the stored energy.

A pair of 250-acre reservoirs with an altitude difference of 600 meters (1,969 feet) and 20-meter depth (65 feet) can store 24 gigawatt-hours of energy, meaning the system could supply 1 gigawatt of power for 24 hours, enough for a city of a million people.

The water can cycle between upper and lower reservoirs for a hundred years or more. Evaporation suppressors – small objects floating on the water to trap humid air – can help reduce water evaporation. In all, the amount of water needed to support a 100% renewable electricity system is about 3 liters per person per day, equivalent to 20 seconds of a morning shower. This is one-tenth of the water evaporated per person per day in the cooling systems of U.S. fossil fuel power stations.

Storage to support 100% renewables

Little pumped storage has been built in the U.S. in recent years because there hasn’t been much need, but that’s changing.

In 2020, about three-quarters of all new power capacity built was either solar photovoltaics or wind power. Their costs have been falling, making them cheaper to build in many areas than fossil fuels.

Australia is installing solar and wind three times faster per capita than the U.S. and is already facing the need for mass storage. It has two systems under construction that are designed to have more energy storage than all the utility batteries in the world put together; another dozen are under serious consideration. None involve new dams on rivers. The annual operating cost is low, and the working fluid is water rather than battery chemicals.

Shifting electricity to renewable energy and then electrifying vehicles and heating can eliminate most human-caused greenhouse gas emissions. The U.S. has vast potential for off-river pumped hydro storage to help this happen, and it will need it as wind and solar power expand.

 ---

This article is republished from The Conversation, a nonprofit news site dedicated to sharing ideas from academic experts. 

Written by: Andrew Blakers, Professor of Engineering, Australian National University, Matthew Stocks, Research Fellow, ANU College of Engineering and Computer Science, Australian National University, and Bin Lu, Research Fellow, Australian National University


Read more:

These 3 energy storage technologies can help solve the challenge of moving to 100% renewable electricity


A radical idea to get a high-renewable electric grid: Build way more solar and wind than needed


The US needs a macrogrid to move electricity from areas that make it to areas that need it

Andrew Blakers receives funding from the Australian Renewable Energy Agency

Bin Lu receives funding from the Australian Renewable Energy Agency.

Matthew Stocks receives funding from ARENA for the Australian pumped hydro analysis.
 
ZIONIST ETHNIC CLEANSING
Israeli lawmakers demand clearance of Bedouin encampment






Mon, January 23, 2023

KHAN AL-AHMAR, West Bank (Reuters) - Two influential Israeli lawmakers demanded the clearance of a Bedouin encampment near Jerusalem on Monday, reigniting a years-long battle over the site and urging Prime Minister Benjamin Netanyahu to defy international pressure.

Khan al-Ahmar has been at the heart of a battle over land rights in the West Bank for years, with international bodies including the European Union urging Israel not to evacuate the site and move its inhabitants out by force.

But the election of a new government which includes nationalist right-wing parties determined to expand Israeli settlements in the West Bank has brought new pressure to clear the encampment. The pressure has been particularly strong since the army prevented a small group of Jewish settlers setting up an outpost in the West Bank last week.

"All the necessary permissions are on the table, including the approval of the Supreme Court of Israel, it's just up to the defence minister and the prime minister to decide," said Yuli Edelstein, a Knesset deputy and chairman of the Foreign Affairs and Defence Committee who joined Danny Danon, a member of Netanyahu's Likud party and former envoy to the United Nations.

"I think the sooner the actions will be taken, the less problems it will create," he said.

In 2018, after years of legal battles, the Supreme Court ruled in favour of the demolition of the site, which was built without construction permits. Palestinians say such permits are virtually impossible for them to obtain.

Successive Israeli governments have held off from enforcing demolition following international calls to refrain from compulsory evacuation of the residents, who say their families have lived in the area since the 1950s.

On Monday, as the deputies stood on with a police escort a hill opposite the hamlet to demand clearance, a group of demonstrators with Palestinian flags gathered in Khan Al-Ahmar to show support.


The standoff follows a prolonged battle over an order to evacuate the West Bank area of Masafer Yatta near Hebron, a group of hamlets where Palestinian shepherds and farmers claim a historic connection to the land.

A scruffy cluster of tin and wooded shacks by the side of a highway out of Jerusalem between the Israeli settlements of Maale Adumim and Kfar Adumim, Khan al-Ahmar is home to around 180 people and includes an EU-funded school.

Palestinians say the aim of the pressure to evacuate the areas is to clear the way for expanded Israeli settlements in the West Bank, the area which would form the core of any future Palestinian state.

"The goal is to empty the land and give it to the settlers," said Eid Jahalin, head of the Khan al-Ahmar compound.

(Reporting by James Mackenzie and Ali Sawafta, Editing by Timothy Heritage)
Lula floats shared 'trading currency' during Argentina trip


Brazil bilateral agreement signing ceremony in Buenos Aires


Mon, January 23, 2023 
By Lisandra Paraguassu

BUENOS AIRES (Reuters) -Brazil and Argentina are in early talks to establish a shared unit of value for bilateral trade to reduce reliance on the U.S. dollar, Brazilian President Luiz Inacio Lula da Silva said on Monday, though the move is not aimed at replacing existing currencies.

In Buenos Aires on his first international visit since taking office, Lula made the comments alongside Argentine President Alberto Fernandez, a leftist ally, who said there was little decided about what would be involved in such a proposal.

The discussions surfaced as part of an agreement to boost bilateral trade with more Brazilian export financing backed by Argentina's international collateral.

Argentina's economy is suffering from a series of challenges, including a lack of dollars, with the government battling to replenish foreign currency reserves while also grappling with an inflation rate of nearly 100% last year.

Leaders from both countries are meeting at a regional summit in the Argentine capital, where Lula vowed to resume a closer relationship after former Brazilian president Jair Bolsonaro distanced himself from Argentina.

"Our finance ministers, each with his own economic team, can make us a proposal for foreign trade and transactions between the two countries that is done in a common currency," Lula told reporters alongside Fernandez.

Fernandez said that he and Lula also discussed the possibility of shipping gas from Argentina's Vaca Muerta shale formation to its neighbor.

Brazil's development bank BNDES may finance the building of a pipeline to deliver the gas, Lula said.

Brazil's Finance Executive Secretary, Gabriel Galipolo, told Reuters that the currency, or "regional unit of account," would come alongside extra credit to support exports to Argentina through Brazilian banks that operate locally.

Brazil's government would offer guarantees to banks that helped provide financing, while Argentina, a major grains exporter, would have to provide collateral via hard assets like grains, gas or oil.

Under the plan, the Brazilian real and Argentine peso would continue to exist, with the new tender targeted narrowly at trade.


Brazil's Finance Minister Fernando Haddad said the presidents of both countries requested the creation of a clearing house with a common currency to settle accounts.

The currency has no name or deadline and would not seek euro-style monetary unification, he added.

(Reporting by Lisandra Paraguassu and Marcela Ayres; Writing by Gabriel Araujo and Peter Frontini; Editing by Brad Haynes, Paul Simao and Rosalba O'Brien)


Brazil and Argentina to discuss common currency


Argentina's President Alberto Fernandez greets Brazil's President 
Luiz Inacio Lula da Silva at the Itamaraty Palace in Brasilia

Sun, January 22, 2023 
By Lisandra Paraguassu

BUENOS AIRES (Reuters) - Brazil and Argentina aim for greater economic integration, including the development of a common currency, Brazilian President Luiz Inacio Lula da Silva and Argentine leader Alberto Fernandez said in a joint article they penned.

"We intend to overcome the barriers to our exchanges, simplify and modernize the rules and encourage the use of local currencies," says the text published on the Argentine website Perfil.

"We also decided to advance discussions on a common South American currency that can be used for both financial and commercial flows, reducing costs operations and our external vulnerability," the article said.

The idea of a common currency was raised originally in an article written last year by Fernando Haddad and Gabriel Galipolo, now Brazil's finance minister and his executive secretary, respectively, and was mentioned by Lula during the campaign.


Lula chose Argentina for his inaugural international trip since taking office, keeping with the tradition of first visiting Brazil's largest trading partner in the region. That follows four years of tense relations during the government of former Brazilian right-wing President Jair Bolsonaro.

Lula's trip to neighboring Argentina also marks the return of Brazil to the Community of Latin American and Caribbean States (CELAC), which Brazil left in 2019 under order from Bolsonaro, who refused to participate in the regional group due to the presence of Cuba and Venezuela.

Both presidents emphasized the need for a good relationship between Argentina and Brazil to strengthen regional integration, according to the article.

The leaders also emphasized strengthening the Mercosur trade bloc, which includes Argentina, Brazil, Paraguay and Uruguay, and which Brazilian Finance Minister Haddad recently lamented has been abandoned in recent years.

"Together with our partners, we want Mercosur to constitute a platform for our effective integration into the world, through the joint negotiation of balanced trade agreements that respond to our strategic development objectives," both presidents said.

Earlier in the day, the Financial Times reported the neighboring nations will announce this week they are starting preparatory work on a common currency.

The plan, set to be discussed at a summit in Buenos Aires this week, will focus on how a new currency which Brazil suggests calling the "sur" (south) could boost regional trade and reduce reliance on the U.S. dollar, FT reported citing officials.

Politicians from both countries have discussed the idea already in 2019, but met with pushback from Brazil's central bank at the time.

Initially starting as a bilateral project, the initiative would later be extended to invite other Latin American nations, the report said, adding an official announcement was expected during Lula's visit to Argentina that starts on Sunday night.

(Reporting by Lisandra Paraguassu; Additional reporting by Jyoti Narayan in Bengaluru; Editing by Tomasz Janowski, Diane Craft and Chris Reese)

Brazil and Argentina are laying the groundwork for a Latin American currency to rival the US dollar




Diego Lasarte
Mon, January 23, 2023 

The presidents of Brazil and Argentina are considering creating a common Latin American currency.

Presidents Lula Ignacio de Silva of Brazil and Alberto Fernandez of Argentina announced the discussions at the Community of Latin American and Caribbean States (CELAC) conference this week in Buenos Aires, reviving a perennial proposal to challenge the US dollar’s dominance in the region.

In an article published in Perfil, an Argentinian newspaper, presidents Lula and Fernandez wrote their countries are exploring options to create a common currency called the sur (south in Spanish), meant to encourage financial and commercial transactions between the countries. Argentina economic minister Sergio Massa added Brazil and Argentina would invite other countries in Latin America to join, but urged patience, citing the difficulty of trade integration.

The move illustrates how Lula is pushing forward on his campaign promises to foster greater economic interdependence in the region. Elected to office at a time when the majority of Latin American countries have left-wing heads of state—including the region’s five largest economies, Lula and other leaders have close ties, raising the possibility of a new era of collaboration for the rapidly developing countries to counter economic influence by the United States.

The day after the announcement, Brazilian finance minister Fernando Haddad played down the idea of completely overhauling the real, saying the countries were exploring all opportunities to increase trade. In the meantime, Argentina is battling its worst inflation in three decades, while economic growth in Brazil is expected to slow as Lula follows through on plans to boost public spending.
Argentina’s surging inflation rate:

datawrapper-chart-pfxJ7


The gaucho: Latin America has flirted with a common currency before

In 1987, the leaders of Brazil and Argentina announced the creation of a “currency unit to enable regional payments,” called the gaucho. Sound familiar?

The idea of a joint currency has long held traction in the region, with populist leaders pointing to the dominance of the dollar as evidence of neo-colonialism. Three countries in Latin America (Ecuador, El Salvador, and Panama) use the greenback as their primary domestic currency, ensuring an outsized American influence in their economies.

However, the formation of a joint currency is not an easy task. Initial negotiations for the European Union’s unified currency took over a decade. And, when the euro was launched in 1999, it was considered an invisible currency for the first three years and only used for accounting purposes and electronic payments. It wasn’t until 2009 that the Lisbon Treaty formed the Eurogroup, the official governing body of the currency.

Demand for an alternative to the US dollar is increasing worldwide, with Russia and China promoting their currencies for international payments, most notably after recent US sanctions on Russian raised the possibility that the dollar could become a tool of political exertion.

Additionally, the dollar’s relative strength in 2022 caused consumer prices and debt-repayment burdens in some regions to rise, with the new government of Myanmar saying the dollar was used to “bully smaller nations.”


Explainer-What Brazil and Argentina's 'currency union' really means


Argentina-Brazil bilateral agreement signing ceremony in Buenos Aires


Mon, January 23, 2023
By Marcela Ayres

BRASILIA (Reuters) - Brazil and Argentina sparked some excitement on Sunday over the possibility of a potential "currency union", though the two countries are unlikely to ditch the real or peso any time soon. So what is the plan all about?

WHAT DID THEY SAY?


In a joint letter, new Brazilian President Luiz Inacio Lula da Silva and Argentine leader Alberto Fernandez said they wanted to "advance discussions on a common South American currency" to be used for financial and trade flows.

That sparked off chatter about a European Union-style zonal currency for South America, though officials have since played that down and analysts say a full-on currency union is a distant prospect.

Lula has since said that early talks are focused on developing a shared unit of value for bilateral trade to reduce reliance on the U.S. dollar.

Brazil's Executive Secretary of the Finance Ministry, Gabriel Galipolo, told Reuters that the "regional unit of account" would come alongside expanded credit to support exports to Argentina through banks that operate in the country.

He said that Brazil's government would offer guarantees to banks that helped provide financing, while Argentina, a major grains exporter, would have to provide collateral via hard assets like grains, gas or oil.

SO NO SOUTH AMERICAN EURO?


Under the plan, the Brazilian real and Argentine peso would continue to exist, with the new tender targeted narrowly at trade. That's very different from, say, the euro, which is used for all kinds of transactions within the European bloc.

The tender would be used in clearing houses to execute trade payments between the two countries, helping in part to trim reliance on the dollar. That is key for Argentina, which is grappling with low foreign currency reserves after years of debt crises.

"This currency would not circulate within Brazil or Argentina. It's specifically to be a common denominator of trade exchanges," said Fabio Terra, professor of Economics at the Federal University of ABC.

WHAT WOULD IT BE WORTH?


How the new currency would be valued is still to be debated, but the Brazilian government is looking at stablecoins as a possible reference, Galipolo told Reuters.

Digital stablecoins, pegged to an asset like gold, or major currencies such as the euro, pound, and U.S. dollar, have emerged as issuers seek to expand uses for digital currencies, which are generally unregulated and volatile.

"It is obvious that the real will have the greatest weight in the equation because it is the most liquid currency we have in the international market," Galipolo said.

HAS THIS BEEN TRIED BEFORE?

In the late 1980s, Brazil and Argentina discussed the idea of a shared currency for trade called the 'gaucho', which fell by the wayside due to challenge implementing the idea. In 2019, former Brazilian President Jair Bolsonaro touted plans for a currency union, which also never materialized.

The economic team of Brazil's government, however, now thinks a combined trade-focused tender and beefed-up financing could help the South American country claw back trade with Argentina it has lost to China in recent years.

(Reporting by Marcela Ayres, Editing by Adam Jourdan and Rosalba O'Brien)

Capitalist Economists Laugh Off South America’s Common Currency Idea



Juan Pablo Spinetto
Mon, January 23, 2023 at 9:39 AM MST·2 min read

(Bloomberg) -- Top economists dismissed the creation of a common currency by Argentina and Brazil, saying the idea floated by the presidents of both countries on Sunday faces too many practical obstacles for it to become reality.

Mohamed El-Erian, chief economic adviser at Allianz SE and Bloomberg Opinion columnist, wrote on Twitter that South America’s two largest economies are in no position to make the idea succeed given their current conditions, and that the implementation of a common currency is “far from probable.”

John Barrdear, an economist at the Bank of England, said a currency union between both countries would be “ambitious,” and Chile’s former central bank President Jose De Gregorio said Brazil would risk its sound monetary policy by linking its currency to Argentina: “It doesn’t make much sense,” he told Radio Infinita.

Olivier Blanchard, a former International Monetary Fund chief economist, called the proposal “insane” while former US Treasury Secretary Larry Summers labeled it “highly problematic given the differences in the economies.”

Brazil and Argentina are seeking to renew discussions on forming a common currency for financial and commercial transactions, Presidents Luiz Inacio Lula da Silva and Alberto Fernandez wrote in a joint article in a local newspaper on Sunday ahead of a regional summit taking place in Buenos Aires this week.

While the proposal aims to boost regional trade and integration of the neighboring countries, it faces numerous political and economic hurdles before becoming reality. Similar attempts in past decades failed to gather steam amid macroeconomic instability and government changes.

Argentina’s annual inflation of almost 100% compared to Brazil’s 5.8% and the fast depreciation of the peso in recent years are an immediate challenge to the idea of a common currency, among other different obstacles.

What Bloomberg Economics Says

“The idea of a single South American currency — or even one only for Brazil and Argentina — lacks in merit and has a poor timing. The region does not have what it takes to justify and sustain a single currency: there’s no labor and capital mobility, there’s price and wages rigidities in several countries, the business cycles are not synchronous, and most of the countries in the region do not have the fiscal space to afford the fiscal transfers that this kind of mechanism demands.”

— Adriana Dupita, Brazil and Argentina economist

Even if it’s hard to see a unified Argentina-Brazil currency any time soon, the idea still triggered a cascade of different comments on social media. Brian Armstrong, chief executive officer of Coinbase Global Inc., a publicly traded crypto exchange, suggested the South American countries should instead adopt Bitcoin in the long term.






Analysis-Lula confronts Brazil military's pro-Bolsonaro lean with carrot and stick


Argentina-Brazil bilateral agreement signing ceremony in Buenos Aires

Mon, January 23, 2023 
By Anthony Boadle

BRASILIA (Reuters) - President Luiz Inacio Lula da Silva has taken a carrot-and-stick approach to asserting authority over Brazil's armed forces and containing sympathies in the barracks for his predecessor after violent unrest in the capital this month.

On Saturday, Lula fired the army commander for not following his government's orders to dismantle a tent city of Bolsonaro supporters who clamored for a military coup and stormed government buildings on Jan. 8, a government source said.

Lula replaced the commander with another army general who days earlier was seen in a video on social media haranguing his troops on the need to respect the result of the October election in which the leftist Lula narrowly defeated far-right incumbent Jair Bolsonaro.

In a televised interview last week, Lula said he was convinced that parts of the armed forces were complicit in the storming of Brasilia, the worst attack on Brazil's seats of power since the end of a 21-year military dictatorship in 1985.

"I thought it was the beginning of a coup d'état. I even had the impression that people were following the guidance that Bolsonaro had given them for a long time," Lula said.

Lula vowed to bring to justice anyone involved, civilian or military, as demanded by his Workers Party.

But at a Friday meeting the commanders of the armed forces, Lula did not bring up the attack, according to a government official who witnessed the meeting.

Instead, he focused on the resources the military says it needs to defend Latin America's largest nation, bringing industry leaders to the meeting to discuss investments in hardware and manufacturing, according to a defense ministry statement.

Lula's focus on industrial development and generous spending to win over skeptics in uniform echoed his 2003-2010 presidency, highlighting his readiness to build bridges with military brass even as fellow leftists call for him to clean house.

The armed forces' strategic plans to modernize its equipment included developing a nuclear-powered submarine contracted with France's Naval Group, a subsidiary of defense contractor Thales.

Defense expert and former foreign policy congressional staffer Pepe Rezende said Brazil's Navy is looking for additional frigates built with German technology by a joint venture between ThyssenKrup AG and Brazil's Embraer SA.

The Air Force wants to buy 26 more Gripen fighters from Saab AB to be built in Brazil via technology transfer, and funds to complete the development of the MTC-300 cruise missile, the Brazilian Tomahawk missile with a range of 300 kilometers, that has an artillery version for the army, Rezende said.

The army is looking to buy drones and auto-propelled cannons. Above all, it wants armored vehicles to replace the 50-year-old Cascavel, and is in talks with Italy's Iveco-Oto Melara Consortium, which is 50% owned by Leonardo, he said.

GENIE OUT OF THE BOTTLE

Whether a splurge on military hardware will help tamp down pro-Bolsonaro sentiment in the armed forces is open to question.

Lula has asked the commanders to rid the barracks of politics, the source with knowledge of the matter told Reuters.

Defense experts and political risk analysts say that cannot be done overnight after four years in which military officers gained prominence and wages in government posts under Bolsonaro.

The demonstrators clamoring for a coup outside the army headquarters in Brasilia included families of military officers with government jobs.

Oliver Stuenkel, at the Getulio Vargas Foundation think tank in Sao Paulo, told Reuters that Lula had to replace the army commander after media reports of his insubordination, out of political necessity, because he is facing public pressure to do something about pro-Bolsonaro sympathies in the military.

"The government is not willing to do more than that to remove anti-democratic elements from the military and go after the many skeletons in the armed forces closet," Stuenkel said.

Brazil's military dictatorship handed power to civilian government in 1985, but individual officers were never brought to trial for human rights abuses as in Argentina and Chile, so the armed forces still feel they have a say in the running the country, Stuenkel added. Reforming this relationship would take time and effort that would distract from Lula's main objective of reducing poverty and inequality, he said.

"Lula wants this to go away as soon as possible," he added. "Starting to punish members of the armed forces for what happened may be legally the right thing to do but politically it would open a Pandora's box."

Defense Minister Jose Mucio, a conservative politician whose appointment was well received by the armed forces, has sought to dissuade Lula from harsh steps antagonizing the military, said Paulo Kramer, a University of Brasilia professor that studies the army.

But distrust of Lula's Workers Party has become ingrained in a military force still trained in Cold War national security doctrines, said Andre Cesar at Hold Assessoria Legislativa consultancy.

"It is impossible to put the genie back in the bottle, because relations between the military and a left-wing government will always be strained," he said.

(Reporting by Anthony Boadle and Lisandra Paraguassu)