Solar and wind power curtailments are rising in California


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CAISO Renewable Curtailments reflect grid balancing under transmission congestion and oversupply, reducing solar and wind output while leveraging WEIM trading, battery storage, and transmission expansion to integrate renewables and stabilize demand-supply.

 

Key Points

CAISO renewable curtailments are reductions in wind and solar output to balance grid amid congestion or oversupply.

✅ Driven mainly by transmission congestion, less by oversupply.

✅ Peaks in spring when demand is low and solar output is high.

✅ Mitigated by WEIM trades, new lines, and battery storage growth.

 

The California Independent System Operator (CAISO), the grid operator for most of the state, is increasingly curtailing solar- and wind-powered electricity generation, as reported in rising curtailments, as it balances supply and demand during the rapid growth of wind and solar power in California.

Grid operators must balance supply and demand to maintain a stable electric system as advances in solar and wind continue to scale. The output of wind and solar generators are reduced either through price signals or rarely, through an order to reduce output, during periods of:

Congestion, when power lines don’t have enough capacity to deliver available energy
Oversupply, when generation exceeds customer electricity demand

In CAISO, curtailment is largely a result of congestion. Congestion-related curtailments have increased significantly since 2019 because California's solar boom has been outpacing upgrades in transmission capacity.

In 2022, CAISO curtailed 2.4 million megawatthours (MWh) of utility-scale wind and solar output, a 63% increase from the amount of electricity curtailed in 2021. As of September, CAISO has curtailed more than 2.3 million MWh of wind and solar output so far this year, even as the US project pipeline is dominated by wind, solar, and batteries.

Solar accounts for almost all of the energy curtailed in CAISO—95% in 2022 and 94% in the first seven months of 2023. CAISO tends to curtail the most solar in the spring when electricity demand is relatively low (because moderate spring temperatures mean less demand for space heating or air conditioning) and solar output is relatively high, although wildfire smoke impacts can reduce available generation during fire season as well.

CAISO has increasingly curtailed renewable generation as renewable capacity has grown in California, and the state has even experienced a near-100% renewables moment on the grid in recent years. In 2014, a combined 9.0 gigawatts (GW) of wind and solar capacity had been built in California. As of July 2023, that number had grown to 17.6 GW. Developers plan to add another 3.0 GW by the end of 2024.

CAISO is exploring and implementing various solutions to its increasing curtailment of renewables, including:

The Western Energy Imbalance Market (WEIM) is a real-time market that allows participants outside of CAISO to buy and sell energy to balance demand and supply. In 2022, more than 10% of total possible curtailments were avoided by trading within the WEIM. A day ahead market is expected to be operational in Spring 2025.

CAISO is expanding transmission capacity to reduce congestion. CAISO’s 2022–23 Transmission Planning Process includes 45 transmission projects to accommodate load growth and a larger share of generation from renewable energy sources.

CAISO is promoting the development of flexible resources that can quickly respond to sudden increases and decreases in demand such as battery storage technologies that are rapidly becoming more affordable. California has 4.9 GW of battery storage, and developers plan to add another 7.6 GW by the end of 2024, according to our survey of recent and planned capacity changes. Renewable generators can charge these batteries with electricity that would otherwise have been curtailed.

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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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Ontario Launches Hydrogen Innovation Fund

Ontario Hydrogen Innovation Fund accelerates clean electricity integration, hydrogen storage, grid balancing, and electrolyzer pilot projects, supporting EV production, green steelmaking, and clean manufacturing under Ontario's Low-Carbon Hydrogen Strategy via IESO-administered funding.

 

Key Points

A $15M program funding hydrogen storage, grid pilots to integrate low-carbon hydrogen into Ontario's power system.

✅ Administered by IESO; applications opened April 2023.

✅ Supports existing, new, and research hydrogen projects.

✅ Backs grid storage, capacity, demand management pilots.

 

The Ontario government is establishing a Hydrogen Innovation Fund that will invest $15 million over the next three years to kickstart and develop opportunities for hydrogen to be integrated into Ontario’s clean electricity system, including hydrogen electricity storage. This launch marks another milestone in the implementation of the province’s Low-Carbon Hydrogen Strategy, supporting a growing hydrogen economy across the province, positioning Ontario as a clean manufacturing hub.

“When energy is reliable, affordable and clean our whole province wins,” said Todd Smith, Minister of Energy. “The Hydrogen Innovation Fund will help to lay the groundwork for hydrogen to contribute to our diverse energy supply, supporting game-changing investments in electric vehicle production and charging infrastructure across the province, green steelmaking and clean manufacturing that will create good paying jobs, grow our economy and reduce emissions.”

Hydrogen Innovation Fund projects would support electricity supply, capacity, battery storage and demand management, and support growth in Ontario’s hydrogen economy. The Fund will support projects across three streams:

Existing facilities already built or operational and ready to evaluate how hydrogen can support Ontario’s clean grid amid an energy storage crunch in Ontario.
New hydrogen facilities not yet constructed but could be in-service by a specified date to demonstrate how hydrogen can support Ontario’s clean grid.
Research studies investigating the feasibility of novel applications of hydrogen or support future hydrogen project decision making.

The Hydrogen Innovation Fund will be administered by the Independent Electricity System Operator, which is opening applications for the fund in April 2023. Natural Resources Canada modelling shows that hydrogen could make up about 30 per cent of the country's fuels and feedstock by 2050, as provinces advance initiatives like a British Columbia hydrogen project demonstrating scale and ambition, and create 100,000 jobs in Ontario. By making investments early to explore applications for hydrogen in our clean electricity sector we are paving the way for the growth of our own hydrogen economy.

“As a fuel that can be produced and used with little to no greenhouse gas emissions, hydrogen has tremendous potential to help us meet our long-term economic and environmental goals,” said David Piccini, Minister of the Environment, Conservation and Parks. “Our government will continue to support innovation and investment in clean technologies that will position Ontario as the clean manufacturing and transportation hub of the future while leading Canada in greenhouse gas emission reductions.”

The province is also advancing work to develop the Niagara Hydrogen Centre, led by Atura Power, which would increase the amount of low-carbon hydrogen produced in Ontario by eight-fold. This innovative project would help balance the electricity grid while using previously unutilized water at the Sir Adam Beck generating station to produce electricity for a hydrogen electrolyzer, reflecting broader electrolyzer investment trends in Canada. To support the implementation of the project, the IESO entered into a contract for grid regulation services at the Sir Adam Beck station starting in 2024, which will support low-carbon hydrogen production at the Niagara Hydrogen Centre.

These investments build on Ontario’s clean energy advantage, which also includes the largest battery storage project planned in southwestern Ontario, as our government makes progress on the Low-Carbon Hydrogen Strategy that laid out eight concrete actions to make Ontario a leader in the latest frontier of energy innovation – the hydrogen economy.

 

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Will EV Supply Miss the Demand Mark in the Short and Medium Term?

EV Carpocalypse signals potential mismatch between electric vehicle production and demand, as charging infrastructure, utility coordination, and plug-in hybrid strategies lag forecasts, while state mandates and market-share plays drive cautious, data-informed scaling.

 

Key Points

EV Carpocalypse describes overbuilt EV supply versus demand amid charging rollout, mandates, and risk-managed scaling.

✅ Forecasts vs actual EV demand may diverge in near term

✅ Charging infrastructure and utilities lag vehicle output

✅ Mandates and PHEVs cushion adoption while data guides scaling

 

According to Forbes contributor David Kiley, and Wards Automotive columnist John McElroy, there may be an impending “carpocalypse” of electric vehicles on the way. Sounds very damning and it’s certainly not the upbeat tone I’ve taken on nearly every piece of EV demand content I’ve authored but the author, Kiley does bring up some interesting points worth considering. EV Adoption is happening, and it’s certainly doing so at ever faster rates as the market nears an EV inflection point today. The infrastructure (charging stations, utility cooperation) is being built out more slowly than vehicle manufacturers are producing cars but, as the GM president on EV hurdles has noted, the issue seems to be just that, maybe even the short and medium term plans for EV manufacturing are too aggressive.

#google#

With new EV and plug-in hybrid vehicle sales representing a mere .6% of new car cales in the US, a sign that EV sales remain behind gas cars even as new models proliferate, car makers are are going to be spending more than $100 billion to come out with more than a hundred models of battery electric vheicles which also includes PHEVs and the fear is these vehicles aren’t going to sell in the numbers that automakers and industry analysts may have expected. But forecasts are just that, forecasts, even as U.S. EV sales surge into 2024 suggest momentum. So there’s a valid argument to be made that they’ll either overshoot the true mark or come in way below the actual amount. With nine U.S. states mandating that 15% of new cars sold be EVs by 2025, you could say that at least automakers have supporters in state government helping to push the new technology into the hands of more drivers.

Still, it’s anyone’s guess as to what true adoption will be, and a brief Q1 2024 market share dip underscores lingering volatility. The use of big data and just in time manufacturing will ensure that manufacturers will miss the mark on EVs by less than they have in the past, and will able to cope with breaking even on these vehicles for the sake of gobbling up precious early stage market share. After all, many vendors have up to this point been very willing to break even or make a loss on their lease-only EVs or on EV or hybrid financing in order to gain that share and build out their brand awareness and technical prowess. With some stops and starts, demand will meet supply or supply may need to meet demand but either way, the EV adoption wave is coming to a driveway near you. 

 

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New Brunswick announces rebate program for electric vehicles

New Brunswick EV Rebates deliver stackable provincial and federal incentives for electric vehicles, used EVs, and home chargers, supporting NB Power infrastructure, lower GHG emissions, and climate goals with fast chargers across the province.

 

Key Points

Stackable provincial and federal incentives up to $10,000 for EV purchases, plus support for home charging.

✅ $5,000 new EVs; $2,500 used; stackable with federal $5,000

✅ 50% home charger rebate up to $750 through NB Power

✅ Supports GHG cuts, charging network growth, climate targets

 

New Brunswickers looking for an electric vehicle (EV) can now claim up to $10,000 in rebates from the provincial and federal governments.

The three-year provincial program was announced Thursday and will give rebates of $5,000 on new EVs and $2,500 on used ones. It closely mirrors the federal program and is stackable, meaning new owners will be able to claim up to $5,000 from the feds as well.

Minister of Environment and Climate Change Gary Crossman said the move is hoped to kickstart the province’s push toward a target of having 20,000 EVs on the road by 2030.

“This incentive has to make a positive difference,” Crossman said.

“I truly believe people have been waiting for it, they’ve been asking about it, and this will make a difference from today moving forward to put new or used cars in their hands.”

The first year of the program will cost $1.95 million, which will come from the $36 million in the Climate Change Fund and will be run by NB Power, whose public charging network has been expanding across the province. The department says if the full amount is used this year it could represent a reduction of 850 tonnes of greenhouse gasses (GHGs) annually.

Both the Liberal and Green parties welcomed the move calling it long overdue, but Green MLA Kevin Arseneau said it’s not a “miracle solution.”

“Yes, we need to electrify cars, but this kind of initiative without proper funding of public transportation, urban planning for biking … without this kind of global approach this is just another swipe of a sword in water,” he said.

Liberal environment critic Francine Landry says she hopes this will make the difference for those considering the purchase of an EV and says the government should consider further methods of incentivization like waiving registration fees.

The province’s adoption of EVs has not been overly successful so far, reflecting broader Atlantic EV buying interest trends across the region. At the end of 2020, there were 646 EVs registered in the province, far short of the 2,500 target set out in the Climate Action Plan. That was up significantly from the 437 at the end of 2019, but still a long way from the goal.

New Brunswick has a fairly expansive network of charging stations across the province, claiming to be the first “fully-connected province” in the country, and had hoped that the available infrastructure, including plans for new fast-charging stations on the Trans-Canada, would push adoption of non-emitting vehicles.

“In 2017 we had 11 chargers in the province, so we’ve come a long way from an infrastructure standpoint which I think is critical to promoting or having an electric vehicle network, or a number of electric vehicles operating in the province, and neighbouring N.L.’s fast-charging network shows similar progress,” said Deputy Minister of Natural Resources Tom Macfarlane at a meeting of the standing committee on climate change and environmental stewardship in January of 2020.

There are now 172 level two chargers and 83 fast chargers, while Labrador’s EV infrastructure still lags in neighbouring N.L. today. Level two chargers take between six and eight hours to charge a vehicle, while the fast chargers take about half an hour to get to 80 per cent charge.

The newly announced program will also cover 50 per cent of costs for a home charging station up to $750, similar to B.C. charger rebates that support home infrastructure, to further address infrastructure needs.

The New Brunswick Lung Association is applauding the rebate plan.

President and CEO Melanie Langille said about 15,000 Canadians, including 40 people from New Brunswick, die prematurely each year from air pollution. She said vehicle emissions account for about 30 per cent of the province’s air pollution.

“Electric vehicles are critical to reducing our greenhouse gas emissions,” said Langille. “New Brunswick has one of the highest per capita GHG emissions in Canada. But, because our electricity source in New Brunswick is primarily from non-emitting sources and regional initiatives like Nova Scotia’s vehicle-to-grid pilot are advancing grid integration, switching to an EV is an effective way for New Brunswickers to lower their GHG emissions.”

Langille said the lung association has been part of an electric vehicles advisory group in the province since 2014 and its research has shown this type of program is needed.

“The major barrier that is standing in the way of New Brunswickers adopting electric vehicles is the upfront costs,” Langille said. “So today’s announcement, and that it can be stacked on top of the existing federal rebates, is a huge step forward for us.”

 

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Olympus to Use 100% Renewable Electricity

Olympus Renewable Energy Initiative reduces CO2 emissions by sourcing 100% clean electricity at major Japan R&D and manufacturing sites, accelerating ESG goals toward net zero, decarbonization, and TCFD-aligned sustainability across global operations.

 

Key Points

Olympus's program to source renewable power, cut CO2, and reach net-zero site operations by 2030.

✅ 100% renewable electricity at major Japan R&D and manufacturing sites

✅ Expected 70% renewable share of electricity in FY2023

✅ Net-zero site operations targeted company-wide by 2030

 

Olympus Corporation announces that from April 2022, the company has begun to exclusively source 100% of the electricity used at its major R&D and manufacturing sites in Japan from renewable sources. As a result, CO2 emissions from Olympus Group facilities in Japan will be reduced by approximately 40,000 tons per year. The percentage of the Olympus Group's total electricity use in fiscal 2023 (ending March 2023) from renewable energy sources, including green hydrogen applications, is expected to substantially increase from approximately 14% in the previous fiscal year to approximately 70%.

Olympus has set a goal of achieving net zero CO2 emissions from its site operations by 2030, as part of its commitment to achieving environmentally responsible business growth and creating a sustainable society, aligning with Europe's push for electrification to address climate goals. This is a key goal in line with Olympus Corporation's ESG materiality targets focused on the theme of a "carbon neutral society and circular economy."

The company has already introduced a wide range of initiatives to reduce CO2 emissions. This includes the use of 100% renewable energy at some manufacturing sites in Europe, despite electricity price volatility in the region, and the United States, the installation of solar power generation facilities at some manufacturing sites in Japan, and support of the recommendations made by the Task Force on Climate-related Financial Disclosures (TCFD), alongside developments such as Honda's Ontario battery investment that signal rapid electrification.

To achieve its carbon neutral goal, Olympus will continue to optimize manufacturing processes and promote energy-saving measures, and notes that policy momentum from Canada's EV sales regulations and EPA emissions limits is accelerating complementary electrification trends, is committed to further accelerate the shift to renewable energy sources across the company, thereby contributing to the decarbonization of society on a global level, as reflected in regional labor markets like Ontario's EV jobs boom that accompany the transition.

 

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Can food waste be turned into green hydrogen to produce electricity?

Food Waste to Green Hydrogen uses biological production to create clean energy, enabling waste-to-energy, decarbonization, and renewable hydrogen for electricity, industrial processes, and transport fuels, developed at Purdue University Northwest with Purdue Research Foundation licensing.

 

Key Points

A biological process converting food waste into renewable hydrogen for clean energy, electricity, industry, and transport.

✅ Enables rapid, scalable waste-to-hydrogen deployment

✅ Supports grid power, industrial heat, and mobility fuels

✅ Backed by patents, DOE grants, and licensing deals

 

West Lafayette, Indiana-based Purdue Research Foundation recently completed a licensing agreement with an international energy company – the name of which was not disclosed – for the commercialization of a new process discovered at Purdue University Northwest (PNW) for the biological production of green hydrogen from food waste. A second licensing agreement with a company in Indiana is under negotiation.


Food waste into green hydrogen
Researchers say that this new process, which uses food waste to biologically produce hydrogen, can be used as a clean energy source for producing electricity, as well as for chemical and industrial processes like green steel production or as a transportation fuel.

Robert Kramer, professor of physics at PNW and principal investigator for the research, says that more than 30% of all food, amounting to $48 billion, is wasted in the United States each year. That waste could be used to create hydrogen, a sustainable energy source alongside municipal solid waste power options. When hydrogen is combusted, the only byproduct is water vapor.

The developed process has a high production rate and can be implemented quickly to support large H2 energy systems in practice. The process is robust, reliable, and economically viable for local energy production and processes.

The research team has received five grants from the US Department of Energy and the Purdue Research Foundation totaling around $800,000 over the last eight years to develop the science and technology that led to this process, much like advances in advanced nuclear reactors drive clean energy innovation.

Two patents have been issued, and a third patent is currently in the final stages of approval. Over the next nine months, a scale-up test will be conducted, reflecting how power-to-gas storage can integrate with existing infrastructure. Based upon test results, it is anticipated that construction could start on the first commercial prototype within a year.

Last week, a facility designed to turn non-recyclable plastics into green hydrogen was approved in the UK, as other innovations like the seawater power concept progress globally. It is the second facility of its kind there.

 

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