Utility-scale batteries and pumped storage return about 80% of the electricity they store


stored energy

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Electric energy storage enables grid flexibility for renewables using utility-scale batteries and pumped-storage hydropower, delivering high round-trip efficiency, scalable capacity, and longer durations, according to EIA data as intermittent generation and demand variability increase.

 

Key Points

Electric energy storage saves power for later use using batteries and pumped storage to boost efficiency.

✅ Batteries: ~82% round-trip efficiency in 2019 (EIA)

✅ Pumped-storage: ~79% round-trip efficiency in 2019 (EIA)

✅ Pumped-storage 21.9 GW; utility-scale batteries 1.4 GW (Nov 2020)

 

Electric energy storage is becoming more important to the energy industry as the share of intermittent generating technologies, such as wind and solar, in the electricity mix increases. Electric energy storage helps to meet fluctuating demand, as many utilities see benefits from deployment, which is why it is often paired with intermittent sources. Storage technologies include batteries and pumped-storage hydropower, which capture energy and store it for later use and increasingly support EV-related grid flexibility as mobile chargers bring new options. Storage metrics can help us understand the value of the technology. Round-trip efficiency is the percentage of electricity put into storage that is later retrieved. The higher the round-trip efficiency, the less energy is lost in the storage process. According to data from the U.S. Energy Information Administration (EIA), in 2019, the U.S. utility-scale battery fleet operated with an average monthly round-trip efficiency of 82%, and pumped-storage facilities operated with an average monthly round-trip efficiency of 79%.


 

EIA’s Power Plant Operations Report provides data on utility-scale energy storage, and initiatives to enable storage in Ontario illustrate system-level integration, including the monthly electricity consumption and gross electric generation of energy storage assets, which can be used to calculate round-trip efficiency. The metrics reviewed here use the finalized data from the Power Plant Operations Report for 2019—the most recent year for which a full set of storage data is available.

Pumped-storage facilities are the largest energy storage resource in the United States, and regions anticipating tight supply, such as Ontario supply crunch, are also evaluating expanded storage portfolios. The facilities collectively account for 21.9 gigawatts (GW) of capacity and for 92% of the country’s total energy storage capacity as of November 2020.

In recent years, utility-scale battery capacity has grown rapidly as battery costs have decreased, and New York BESS is cited as a needed clean energy solution, underscoring this trend. As batteries have been increasingly paired with renewables in markets worldwide, including Ontario to rely on battery storage to meet rising demand, they have become the second-largest source of electricity storage. As of November 20, 2020, utility-scale battery capacity had 1.4 GW of operational capacity. Another 4.0 GW of battery capacity is scheduled to come online in 2021, according to EIA’s Preliminary Electric Generator Inventory.

Although battery storage has slightly higher round-trip efficiency than pumped storage, pumped-storage facilities typically operate at utilization factors that are currently twice as high as batteries. Increasing durations among battery applications could shift battery operations toward services that reward longer output periods. For example, in 2015, the weighted average battery duration was a little more than 46 minutes, but by 2019, weighted average battery durations had doubled to 1.5 hours, and emerging long-duration projects are targeting 100-hour capabilities. The role of batteries and their capability to provide high levels of round-trip efficiency may become more important as batteries continue to be deployed and as the intermittent renewables share of the electricity mix grows.

 

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U.S. to work with allies to secure electric vehicle metals

US EV Battery Minerals Strategy prioritizes critical minerals with allies, lithium and copper sourcing, battery recycling, and domestic processing, leveraging the Development Finance Corporation to strengthen EV supply chains and reduce reliance on China.

 

Key Points

A US plan to secure critical minerals with allies, boost recycling, and expand domestic processing for EV batteries.

✅ DFC financing for allied lithium and copper projects

✅ Battery recycling to diversify critical mineral supply

✅ Domestic processing with strong environmental standards

 

The United States must work with allies to secure the minerals needed for electric vehicle batteries, addressing pressures on cobalt reserves that could influence supply, and process them domestically in light of environmental and other competing interests, the White House said on Tuesday.

The strategy, first reported by Reuters in late May, will include new funding to expand international investments in electric vehicles (EV) metal projects through the U.S. Development Finance Corporation, as well as new efforts to boost supply from EV battery recycling initiatives.

The U.S. has been working to secure minerals from allied countries, including Canada and Finland, with projects such as Alberta lithium development showing potential. The 250-page report outlining policy recommendations mentioned large lithium supplies in Chile and Australia, the world's two largest producers of the white battery metal.

President Joe Biden's administration will also launch a working group to identify where minerals used in EV batteries and other technologies can be produced and processed domestically.

Securing enough copper, lithium and other raw materials to make EV batteries, amid lithium supply concerns heightened by recent disruptions, is a major obstacle to Biden’s aggressive EV adoption plans, with domestic mines facing extensive regulatory hurdles and environmental opposition.

The White House acknowledged China's role as the world's largest processor of EV metals and said it would expand efforts, including a 100% EV tariff on certain imports, to lessen that dependency.

"The United States cannot and does not need to mine and process all critical battery inputs at home. It can and should work with allies and partners to expand global production and to ensure secure global supplies," it said in the report.

The White House also said the Department of the Interior and others agencies will work to identify gaps in mine permitting laws to ensure any new production "meets strong standards" in terms of both the environment and community input.

The report noted Native American opposition to Lithium Americas Corp's (LAC.TO) Thacker Pass lithium project in Nevada, as well as plans by automaker Tesla Inc (TSLA.O) to produce its own lithium.

The steps come after Biden, who has made fighting climate change and competing with China centerpieces of his agenda, ordered a 100-day review of gaps in supply chains in key areas, including EVs.

Democrats are pushing aggressive climate goals, as Canada EV manufacturing accelerates in parallel, to have a majority of U.S.-manufactured cars be electric by 2030 and every car on the road to be electric by 2040.

As part of the recommendations from four executive branch agencies, Biden is being advised to take steps to restore the country's strategic mineral stockpile and expand funding to map the mineral resources available domestically.

Some of those steps would require the support of Congress, where Biden's fellow Democrats have only slim majorities.

The Energy Department already has $17 billion in authority through its Advanced Technology Vehicles Manufacturing Loan program to fund some investments, and is also launching a lithium-battery workforce initiative to build critical skills.

The program’s administrators will focus on financing battery manufacturers and companies that refine, recycle and process critical minerals, the White House said.

 

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4 European nations to build North Sea wind farms

North Sea Offshore Wind Farms will deliver 150 GW by 2050 as EU partners scale renewable energy, offshore turbines, grid interconnectors, and REPowerEU goals to cut emissions, boost energy security, and reduce Russian fossil dependence.

 

Key Points

A joint EU initiative to build 150 GW of offshore wind by 2050, advancing REPowerEU, decarbonization, and energy security.

✅ Targets at least 150 GW of offshore wind by 2050

✅ Backed by Belgium, Netherlands, Germany, and Denmark

✅ Aligns with REPowerEU, grid integration, and emissions cuts

 

Four European Union countries plan to build North Sea wind farms capable of producing at least 150 gigawatts of energy by 2050 to help cut carbon emissions that cause climate change, with EU wind and solar surpassing gas last year, Danish media have reported.

Under the plan, wind turbines would be raised off the coasts of Belgium, the Netherlands, Germany and Denmark, where a recent green power record highlighted strong winds, daily Danish newspaper Jyllands-Posten said.

The project would mean a tenfold increase in the EU's current offshore wind capacity, underscoring how renewables are crowding out gas across Europe today.

“The North Sea can do a lot," Danish Prime Minister Frederiksen told the newspaper, adding the close cooperation between the four EU nations "must start now.”

European Commission President Ursula von der Leyen, German Chancellor Olaf Scholz, Dutch Prime Minister Mark Rutte and Belgian Prime Minister Alexander De Croo are scheduled to attend a North Sea Summit on Wednesday in Esbjerg, 260 kilometers (162 miles) west of Copenhagen.

In Brussels, the European Commission moved Wednesday to jump-start plans for the whole 27-nation EU to abandon Russian energy amid the Kremlin’s war in Ukraine. The commission proposed a nearly 300 billion-euro ($315 billion) package that includes more efficient use of fuels and a faster rollout of renewable power, even as stunted hydro and nuclear output may hobble recovery efforts.

The investment initiative by the EU's executive arm is meant to help the bloc start weaning themselves off Russian fossil fuels this year, even as Europe is losing nuclear power during the transition. The goal is to deprive Russia, the EU’s main supplier of oil, natural gas and coal, of tens of billions in revenue and strengthen EU climate policies.

“We are taking our ambition to yet another level to make sure that we become independent from Russian fossil fuels as quickly as possible,” von der Leyen said in Brussels when announcing the package, dubbed REPowerEU.

The EU has pledged to reduce carbon dioxide emissions by 55% compared with 1990 levels by 2030, and to get to net zero emissions by 2050, with a recent German renewables milestone underscoring the pace of change.

The European Commission has set an overall target of generating 300 gigawatts of offshore energy of by 2050, though grid expansion challenges in Germany highlight hurdles.

Along with climate change, the war in Ukraine has made EU nations eager to reduce their dependency on Russian natural gas and oil. In 2021, the EU imported roughly 40% of its gas and 25% of its oil from Russia.

At a March 11 summit, EU leaders agreed in principle to phase out Russian gas, oil and coal imports by 2027.

 

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Canada is a solar power laggard, this expert says

Canada Distributed Energy faces disruption as solar, smart grids, microgrids, and storage scale utility-scale renewables, challenging centralized utilities and accelerating decarbonization, grid modernization, and distributed generation across provinces like Alberta.

 

Key Points

Canada Distributed Energy shifts from centralized grids to local solar, wind, and storage for reliable low-carbon power.

✅ Morgan Solar and Enbridge launch Alberta Solar One, 13.7 MW.

✅ Optical films boost panel efficiency, lowering cost per watt.

✅ Strong utilities slow adoption of microgrids and smart grids.

 

By Nick Waddell

Disruption is coming to electricity generation but Canada has become a laggard when it comes to not just adoption of alternative energy sources but in moving to a more distributed model of electricity generation. That’s according to Mike Andrade, CEO of Morgan Solar, whose new solar project in conjunction with Enbridge has just come online in Alberta, a province known as a powerhouse for both green and fossil energy in Canada.

“There’s a lot of inertia to Canada’s electrical system and I don’t think that bodes well,” said Andrade, who spoke on BNN Bloomberg on Thursday. 

“Canada is one of the poorest places for uptake of solar, as NEB data on solar demand indicates,” Andrade said, “I believe a lot of it has to do with the fact that we have strong provincial utilities that have their mandates and their chosen technologies.”

Alberta Solar One, a 13.7 MW power facility near Lethbridge, Alberta, had its unveiling this week amid red-hot solar growth in Alberta that shows no sign of slowing. It’s a 36,500-panel farm constructed by Enbridge in a quick six-month turnaround as part of the power company’s pledge to become a carbon-free generator by 2050. Along with solar, Enbridge has made big investments in offshore and onshore wind farms in the United States, while also producing so-called green hydrogen at an Ontario plant.

Private company Morgan Solar considers the Alberta Solar One project as the first utility-scale validation of its technology, which uses optical films to redirect light onto photovoltaic cells to further power production. 

“We use an advanced modelling system and a variety of tools to design very simple optical systems that can be easily inserted into a panel,” Andrade said. “They cost less and bring down the cost per watt. It captures light that would otherwise miss the cells and so you get more power per cell area than any other commercial technology at this point.”

Like renewables in general, solar energy has been thrust into the spotlight as governments worldwide aim to make good on their climate change and emissions pledges, with analyses showing zero-emissions electricity by 2035 is possible in Canada, and convert power generation from fossil fuels to alternative sources. 

The market has paid attention, too, driving up values on renewable energy stocks across the board, including solar stocks, as provinces like Alberta explore selling renewable energy into broader markets. Last year, the Invesco Solar ETF, which tracks the MAC Global Solar Energy Index, soared 234 per cent, while Canadian companies with solar assets like Algonquin Power and Northland Power have been winners over the past few years.

Canadian cleantech companies involved in the solar power sector have also fared well, with names like UGE International (UGE International Stock Quote, Chart, News, Analyst. Financials TSXV:UGE), Aurora Solar and 5N Plus (5N Plus Stock Quote, Chart, News, Analysts, Financials TSX:VNP) having attracted investor attention of late.

Currently, part of the push in alternative energy involves the move from centralized to a more distributed picture of power generation, where solar panels, wind turbines and small modular nuclear reactors can operate close to or within sources of consumption like cities.

But Andrade says Canada has a lot of catching up to do on that front, especially as its current system seems devoted to maintaining the precedence of large, centralized power production — along with the utility companies that generate it.

“Canada is going to be left with this big, old fashioned hub and spoke model, and that’s increasingly going to be out-competed by a distributed grid, call them smart grids or micro grids,” Andrade said.

“That’s the future that solar is going to drive along with storage, and I personally don’t think Canada is prepared for it, not because we can’t do it but because regulatory and incumbency is holding us back from doing that,” he said.

“We pay our utilities, saying, ‘You invest capital and we’ll give you a fixed return on capital.’ Well, guess what? You’re going to get large, centralized capital projects which are going to get big central generation hub and spoke distribution,” Andrade said.

Ahead of the Canadian federal government’s tabling next week of its first budget in two years, many in the energy sector will be taking notes on the Liberal government’s investments in the so-called green recovery after the economic downturn, with renewable energy proponents hoping for further support, noting Alberta’s renewable energy surge could power thousands of jobs, to shift Canada’s resource sector away from fossil fuels.

By comparison, President Biden in the US recently unveiled his $2-billion infrastructure plan which put precedence on greening the country’s power grid, encouraging the adoption of electric vehicles and supporting renewable resource development, and Canadian studies suggest 2035 zero-emission power is practical and profitable as well across the national grid. 

On disruption in power generation, Andrade said there are parallels to be drawn from information technology, which has historically made a point of discarded outdated models along the way.

“I was at IBM, and they had the mainframe business and that got blown up. I also worked with Nortel and Celestica and they got blown up —and it wasn’t due to having better central hub and spoke systems. They got beat up by this distributed system,” Andrade said. 

“The same thing is going to happen here and the disruption is coming in electricity generation as well,” he said.

 

About The Author - Nick Waddell

Cantech Letter founder and editor Nick Waddell has lived in five Canadian provinces and is proud of his country's often overlooked contributions to the world of science and technology. Waddell takes a regular shift on the Canadian media circuit, making appearances on CTV, CBC and BNN, and contributing to publications such as Canadian Business and Business Insider.

 

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Nova Scotia Power increases use of biomass for generating electricity

Nova Scotia Biomass Electricity Policy increases dispatchable renewable generation from Port Hawkesbury and Brooklyn Energy, raising MWh output while critics cite clearcutting, carbon emissions, high costs to ratepayers, and delays replacing Muskrat Falls hydro.

 

Key Points

Policy directing utilities to maximize biomass power as dispatchable renewable supply during hydro delays.

✅ Port Hawkesbury biomass output up 35% year over year

✅ Brooklyn Energy used as dispatchable renewable supply

✅ Critics cite clearcutting, emissions, high ratepayer costs

 

A boiler owned by Nova Scotia Power on the grounds of the Port Hawkesbury paper plant, whose discount power rate request has drawn attention, is burning 35% more woody biomass this year than last. 

The year-to-date figures show 126,810 megawatt hours (MWh) of electricity was generated over the first nine months of 2021 compared to 93,934 MWh for the same period in 2020 and 65,891 MWh in 2019. 

The information is contained in monthly fuel cost reports Nova Scotia Power must make to the Utility and Review Board, which regulates how much consumers ultimately pay for electricity and has received a call for major grid changes in Nova Scotia.

Burning biomass  — which includes everything from low-grade pulpwood to bark, shavings, and wood chip waste from sawmills — for the purpose of generating electricity is only about 22% efficient, even as some coal stations have switched to biomass abroad. Nova Scotia Power’s boiler at Port Hawkesbury supplies about 3% of the total electricity used in the province. 

Citizens concerned about climate change have for years opposed the government classifying biomass as “renewable energy” and have echoed calls to reduce biomass use for electricity, because clearcutting, which releases carbon from the ground, remains the dominant form of harvesting on Crown and private land. That’s despite ongoing work to begin implementing 2018 recommendations from Professor Bill Lahey to move toward a more ecological approach. 

In May 2020, after it became obvious renewable hydroelectricity from Muskrat Falls was going to be delayed yet again, the McNeil government passed an Order-in-Council extending until December 2022 the deadline to generate 40% of electricity from renewable sources as it moved to increase wind and solar projects across Nova Scotia. 

To help with the shortfall, Nova Scotia Power was told to “maximize” its use of biomass at both the facility it owns in Port Hawkesbury and another one in Brooklyn owned by its parent company, Emera.

In a letter to Nova Scotia Power dated May 15, then-Energy Minister Derek Mombourquette, amid debate over independent energy planning, added: “Nova Scotia Power shall also maximize the use of dispatchable renewable electricity from its own facilities, as well as those of renewable electricity power producers in Nova Scotia (excluding COMFIT generation sources).” 

By definition, “dispatchable” excludes wind and hydro sources, which are not available 24/7, though a new attempt to harness the Bay of Fundy's tides is underway. Nova Scotia Power claims the only “dispatchable renewable electricity power producer” in the province is Brooklyn Energy, the 35 MW biomass plant near Liverpool. 

The government capped at $7 million a year how much electricity Nova Scotia Power could buy from its affiliate company. Critics of the deal — such as auditors hired by the regulator and the province’s consumer advocate — say electricity generated by Brooklyn is the most expensive power and question why the province would burden ratepayers with its purchase.

The answer became apparent in September 2020 when then-Intergovernmental Affairs Minister Kelliann Dean appeared before the legislature’s standing committee on Natural Resources and Economic Development to praise the Order-in-Council for helping rescue the forestry industry four months after the closure of the Northern Pulp mill. 

“The change to Renewable Energy Standards (May,2020) is enabling Nova Scotia Power to generate more electricity from wood chips and sawmill residuals by operating two biomass plants at capacity until electricity from Muskrat Falls comes onstream,” she said. “We are using all the policy levers at our disposal to support the sector.”

Nova Scotia Power is not required to report to the UARB how much electricity is being produced or how much biomass is being burned at Brooklyn Energy. The company pleads “commercial confidentiality” when asked by The Halifax Examiner. 

Nova Scotia Power does report how much it spends each month to buy power from independent producers — a small group which includes Brooklyn but excludes all wind farms. That dollar amount has also increased over the past year — from $15.9 million for 10 months ending October 2020 compared to $23.3 million for 10 months ending October 2021. Unfortunately, the lack of transparency makes it impossible to know exactly how much of that increase is attributable to purchasing more biomass.

Radio silence
The current Minister of Natural Resources and Renewable Energy ,Tory Rushton, has the authority to reduce the amount of biomass being burned to generate electricity and by extension, the rate of clearcutting.

With a stroke of the pen, the PC government of Tim Houston could issue another Order-in-Council capping the amount of metric tonnes that could be used in the boilers, or, direct Nova Scotia Power to use biomass only when it is the most economical fuel choice. 

But so far, Rushton has not responded to the Halifax Examiner’s question about whether he intends to make any change to stop “maximizing” the use of biomass to produce electricity.

 The Examiner isn’t the only one pushing the Minister for answers to difficult issues. At noon today, Citizens opposed to a controversial clearcut on Crown land near Rocky Point Lake in Digby County will stage a demonstration outside the Department of Natural Resources and Renewable Energy on Hollis Street. The protest led by members of Extinction Rebellion and the Healthy Forest Coalition is to pressure the government to take action to protect the habitat of the mainland moose, an endangered species that ranges overs the Crown land currently being cut by the Westfor consortium. 

 

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Bimbo Canada signs agreements to offset 100 per cent of its electricity consumption for Canadian operations

Bimbo Canada VPPAs secure renewable electricity from RES wind and solar projects in Alberta, totaling 170MW, via 15-year contracts to offset consumption, advance RE100 goals, and drive decarbonization across bakeries, depots, and distribution centers.

 

Key Points

Virtual power purchase agreements sourcing wind and solar to offset Bimbo Canadas electricity and support RE100.

✅ 15-year RES contracts for Alberta wind and solar capacity

✅ Offsets electricity for bakeries, depots, and distribution centers

✅ Advances Grupo Bimbo RE100 target for 100% renewable power

 

Canada's oldest and largest bakery, Bimbo Canada, has signed two virtual power purchase agreements (VPPAs) with Renewable Energy Systems  (RES) to procure renewable electricity, similar to federal green electricity contracts advancing in Alberta, that will offset 100 per cent of the company's electricity consumption in Canada. The projects are expected to be fully operational by December, 2022.

Canada is the second market, alongside the United States, to enter into VPPAs, where companies like Amazon clean energy projects are expanding rapidly. These agreements, together with additional sustainability initiatives conducted around the world by the parent company Grupo Bimbo, will help the company offset 90 per cent of its global electricity consumption.

"Bimbo Canada is committed to nourishing a better world through productive sustainability practices," said Joe McCarthy, president of Bimbo Canada. "These agreements are the next big step in reducing our environmental footprint, as peers such as Arvato's first solar plant signal industry momentum, and becoming leaders in responsible stewardship of the environment."

The 15-year agreements with RES will support the commercial development of two renewable energy projects in southern Alberta, consisting of wind and solar projects, similar to RBC's solar PPA announced in the region, totaling 170MW of installed capacity. Under these two agreements, Bimbo Canada will procure the benefit of approximately 50MW of renewable electricity to offset electricity consumption for its 16 bakeries, 14 distribution centres and 191 depots. Commercial development for the wind and solar farms will be finalized later this year by RES Canada and the projects are expected to be fully operational by the end of next year.  

"RES is proud that its Alberta wind and solar projects, amid growth such as a $200M Alberta wind farm led by a Buffett-linked firm, are helping Bimbo Canada meet its sustainability initiatives," said Peter Clibbon, RES Senior VP of Development. "It's a win-win situation with our projects delivering competitive wind and solar electricity to Bimbo Canada, and while providing our host communities with long-term tax and landowner income."

In 2018, Grupo Bimbo joined RE100, a global initiative led by The Climate Group and in partnership with Carbon Disclosure Project (CDP) and committed to operating with 100 per cent renewable electricity by 2025. As a leading supplier of fresh-baked goods and snacks for Canadian families, these agreements support the company's targets and builds upon many successful past sustainability initiatives, as market activity by Canadian Solar project sales continues nationwide.

"The renewable electricity initiatives in our operations respond to Grupo Bimbo's deep commitment that we have had for many decades globally with the planet and with present and future generations," said Daniel Servitje, global CEO of Grupo Bimbo. "With this announcement, we have achieved another important milestone for the company on our journey towards becoming 100 per cent renewable electricity by 2025."

Last year, Bimbo Canada reduced product waste and exceeded its product waste reduction target by 18 per cent, which saved four million units of products from landfills. The company also eliminated 174 metric tonnes of plastic per year (equal to 43 adult elephants) through several packaging optimization initiatives.

Earlier this year, Bimbo Canada signed the Canada Plastics Pact (CPP) and, amid a broader push for clean energy exemplified by Edmonton rooftop solar installations, earned its first ENERGY STAR certification for its Hamilton, Ontario bakery. The company will continue to work towards other initiatives that fulfill its commitment to be a sustainable, highly productive and deeply humane company.

 

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Climate change, not renewables, threaten grid

New Mexico Energy Transition Act advances renewable energy, battery storage, energy efficiency, and demand response to boost grid reliability during climate change-fueled heatwaves, reducing emissions while supporting solar and wind deployment.

 

Key Points

A state policy phasing out power emissions, scaling renewables and storage, bolstering grid reliability in extreme heat.

✅ Replaces coal generation with solar plus battery storage

✅ Enhances grid reliability during climate-driven heatwaves

✅ Promotes energy efficiency and demand response programs

 

While temperatures hit record highs across much of the West in recent weeks and California was forced to curb electricity service amid heat-driven grid strain that week, the power stayed on in New Mexico thanks to proactive energy efficiency and conservation measures.

Public Service Company of New Mexico on Aug. 19 did ask customers to cut back on power use during the peak demand time until 9 p.m., to offset energy supply issues due to the record-breaking heatwave that was one of the most severe to hit the West since 2006. But the Albuquerque Journal's Aug. 28 editorial, "PRC should see the light with record heat and blackouts," confuses the problem with the solution. Record temperatures fueled by climate change – not renewable energy – were to blame for the power challenges last month. And thanks to the Energy Transition Act, New Mexico is reducing climate change-causing pollution and better positioned to prevent the worst impacts of global warming.

During those August days, more than 80 million U.S. residents were under excessive heat warnings. As the Journal's editorial pointed out, California experienced blackouts on Aug. 14 and 15 as wildfires swept across the state and temperatures rose. In fact, a recent report by the University of Chicago's Climate Impact Lab found the world has experienced record heat this summer due to climate change, and heat-related deaths will continue to rise in the future.

As the recent California energy incidents show, climate change is a threat to a reliable electricity system and our health as soaring temperatures and heatwaves strain our grid, as seen in Texas grid challenges this year as well. Demand for electricity rises as people depend more on energy-intensive air conditioning. High temperatures also can decrease transmission line efficiency and cause power plant operators to scale back or even temporarily stop electricity generation.

Lobbyists for the fossil fuel industry may claim that the service interruptions and the conservation requests in New Mexico demonstrate the need for keeping fossil-fueled power generation for electricity reliability, echoing policy blame narratives in California that fault climate policies. But fossil fuel combustion still is subject to the factors that cause blackouts – while also driving climate change and making resulting heatwaves more common. After an investigation, California's own energy agencies found no substance to the claim that renewable energy use was a factor in the situation there, and it's not to blame in New Mexico, either.

New Mexico's Energy Transition Act is a bold, necessary step to limit the damage caused by climate change in the future. It creates a reasonable, cost-saving path to eliminating greenhouse gas emissions associated with generating electricity.

The New Mexico Public Regulation Commission properly applied this law when it recently voted unanimously to replace PNM's coal-fired generation at San Juan Generating Station with carbon-free solar energy and battery storage located in the Four Corners communities, a prudent step given California's looming electricity shortage warnings across the West. The development will create jobs and provide resources for the local school district and help ensure a stronger economy and a healthier future for the region.

As we expand solar and wind energy here in New Mexico, we can help ensure reliable electricity service by building out greater battery storage for renewable energy resources. Expanding regional energy markets that can dispatch the lowest-cost energy from across the region to places where it is needed most would make renewable energy more available and reduce costs, despite concerns over policy exports raised by some observers.

Energy efficiency and demand response are important when we are facing extraordinary conditions, and proven strategies to improve electricity reliability show how demand-side tools complement the grid, so it is unfortunate that the Albuquerque Journal made the unsubstantiated claim that a stray cloud will put out the lights. It was hot, supplies were tight on the electric grid, and in those moments, we should conserve. We should not use those moments to turn our back on progress.

 

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