Renewables Poised to Eclipse Coal in Global Power Generation by 2025

China Compressed-Air Energy Storage enables grid flexibility using salt caverns in Jiangsu, delivering long-duration storage for wind and solar, 60 MW capacity, dispatchable power, and low-cost, safe, round-the-clock clean energy integration.

Key Points

Stores off-peak power by compressing air in salt caverns, then drives turbines on demand to balance renewables.

✅ 60 MW Jintan plant connects to grid; commercial CAES milestone

✅ Uses salt caverns; low-cost long-duration storage; high safety

✅ Balances wind and solar; improves grid flexibility and reliability

China is set to connect its first commercial compressed-air energy storage plant to the grid as it seeks more ways to harness fast-growing clean power resources, including new hydropower alongside other long-duration options such as gravity power technologies for around-the-clock use.

China Huaneng Group Co. said its Jiangsu Jintan Salt Cave project recently underwent four days of successful trials and is now ready for commercial operations. The 60-megawatt plant will be the largest compressed air energy storage plant built anywhere in the world since 1991, and the first in China outside of small-scale technology demonstration projects, as China's electricity demand patterns remain in flux, according to BloombergNEF.

The plant will use electricity at night when demand is low to pump air into an underground salt cavern. Then, when demand is high during the day, it can release the compressed air at high enough pressure to spin a turbine and produce electricity, aligning with projections that 60% electricity by 2060 could be reached according to industry outlooks.

Underground compressed air is considered one of the least costly forms of long-term energy storage and has low safety concerns, according to BloombergNEF. But its reliance on certain topographical features such as underground caverns may limit wider deployment, a challenge shared by other regions weighing large-scale storage options for reliability. It’s gained a foothold in China, with nearly four gigawatts of projects in the pipeline, while there are less than two gigawatts combined planned in the rest of the world. Shandong province said just this week in this year's work plan that it would build three projects using the technology.

The Jintan salt caves in Jiangsu, China’s second-biggest provincial economy just north of Shanghai, can store about 10 million cubic meters of gas, enough to power four gigawatts of compressed air plants, according to a Science and Technology Daily report from last year. 

Energy storage is a key part of China’s plan to build a larger and more flexible grid as it tries to peak carbon emissions before 2030 and zero them out before 2060, alongside continued nuclear energy development to stabilize baseload supply. The country is adding a world-leading amount of wind and solar power every year, but their intermittency strains grids that need to be able to deliver electricity all the time, spurring interest in green hydrogen as a flexible complement. China has set targets of 30 gigawatts of new-energy storage by 2025 and 120 gigawatts of pumped hydro storage by 2030. 

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Clean Energy Transition spans hydrogen strategies, offshore wind and undersea cables, decarbonization pledges, and net-zero targets, including green vs blue hydrogen, carbon capture, sustainable aviation fuel, forest conservation, and wetland protection in Canadian policy.

Key Points

A shift to low-carbon systems via hydrogen, renewables, net-zero policies, carbon capture, and conservation.

✅ Hydrogen pathways: green vs blue with carbon capture

✅ Grid expansion: offshore wind and undersea cables in Japan

✅ Policy and corporate moves: net-zero, SAF, forests, wetlands

The Canadian federal government is set to sign a new agreement with Germany to strategize on a “clean-energy transition,” with clean hydrogen in Canada expected to be a key player the Globe and Mail reports.

“Germany is probably the world’s most interesting market for hydrogen right now, and Canada is potentially a very big power in its production,” Sabine Sparwasser, Germany’s ambassador to Canada, said in an interview.

However, some friction is expected as Natural Resources Minister Seamus O’Regan has been endorsing “blue” hydrogen, while Germany has been more interested in “green” hydrogen. The former hydrogen is produced from natural gas or other fossil fuels, while simultaneously “using carbon-capture technology to minimize emissions from the process.” In contrast, “green” hydrogen, is manufactured from non-fossil fuel sources, and cleaning up Canada's electricity is critical to meeting climate pledges.

“How the focus on blue hydrogen will be aligned with Canada’s goal of reaching climate neutrality by 2050 is not spelled out in detail,” says an executive summary of the report by the Berlin-based think tank and consultancy Adelphi. “As a result, the strategy seems to be more of a vision for the future of those provinces with large fossil fuel resources.”

According to an IEA report Canada will need more electricity to hit net-zero, underscoring the strategy questions.

Internationally

Japan is in talks to develop undersea cables that would bring offshore wind energy to Tokyo and the Kansai region, as the country hopes to more than quadrable its wind capacity from 10 gigawatts in 2030 to 45 gigawatts in 2040. The construction of the cables would cost about US$9.2 billion.

In Western Canada, bridging the electricity gap between Alberta and B.C. makes similar climate sense, proponents argue.

Approximately 80 per cent of that offshore power is expected to be built in Hokkaido, Tohoku, and Kyushu regions. The project is part of the country’s pledge to achieve decarbonization by 2050, according to BNN Bloomberg.

Meanwhile, Russia is falling behind in the world’s transition to clean energy.

“What’s the alternative? Russia can’t be an exporter of clean energy, that path isn’t open for us,” says Konstantin Simonov, director of the National Energy Security Fund, a Moscow consultancy whose clients include major oil and gas companies. “We can’t just swap fossil fuel production for clean energy production, because we don’t have any technology of our own.” Ultimately, natural gas will always be cheaper than renewable energy in Russia, Simonov added. This story also from BNN Bloomberg.

Finally, New Zealand’s Tilt Renewables Ltd., an electricity company, has announced it would be acquired by Powering Australian Renewables (PowAR) for NZ$2.94 billion (US$2.10 billion). PowAR is Australia’s largest owner of wind and solar energy, and the deal will give the energy giant access to Tilt’s 20 wind farms. Reuters has the story.

In Canada  

Air Canada has unveiled plans to fight climate change. Specifically, the airlines giant has committed to reducing greenhouse gases (GHG) by 20 per cent from flights by 2030, investing $50 million in sustainable aviation fuel (SAF), and ensuring net-zero emissions by 2050.

In other news, B.C. is facing mounting pressure to abstain from logging “old growth forests” while the government transitions to more sustainable forestry policies. A report titled A New Future for Old Forests called on the provincial government to act within six months to protect such forests in April 2020.

The province's Site C mega dam is billions over budget but will go ahead, the premier said, highlighting the energy sector's complexity.

Last September, the province announced, “it would temporarily defer old growth harvesting in close to 353,000 hectares in nine different areas.” The B.C. government will hold consultations with First Nations and other forestry stakeholders “to determine the next areas where harvesting may be deferred,” according to Forests Minister Katrine Conroy. The Canadian Press has more.

Separately, LNG powered with electricity could be a boon for B.C.'s independent power producers, analysts say.

Finally, Pickering Developments Inc. has come forward saying it will not “alter or remove the wetland” that was meant to house an Amazon facility, according to CBC News.

The announcement comes after CBC News’s previously reported that the Toronto and Region Conservation Authority (TRCA) was pressured to issue a construction permit to Pickering Developments Inc. by Doug Ford’s provincial government. However, on March 12, an official with Amazon Canada told CBC News that the company no longer wished to build a warehouse on the site.

“In light of a recent announcement that a new fulfilment centre will no longer be located on this property, this voluntary undertaking ensures that no work, legally authorized by that permit, will occur,” Pickering Development Inc. said in a statement provided to CBC Toronto.

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California Electric School Bus Mandate 2035 sets zero-emission requirements, outlines funding, state reimbursement, fleet electrification, infrastructure, and cost estimates, highlighting exemptions for frontier districts and alignment with clean transportation and climate policy goals.

Key Points

California's 2035 policy requires all new school buses be zero-emission, with funding and limited rural exemptions.

✅ Mandates zero-emission purchases for new school buses from 2035

✅ Estimates $5B transition cost with state reimbursement support

✅ Frontier districts may apply for 5-year extensions

California Governor Gavin Newsom has signed a new legislation requiring that from 2035, all newly ordered or contracted school buses must be zero-emission, a move aligned with California's push for expanded EV grid capacity statewide.

The state estimates that switching to electric school buses will cost around five billion dollars over the next decade, a projection reflecting electric bus challenges seen globally. That is because a diesel equivalent costs about 200,000 dollars less than a battery-electric version, as highlighted by critical analyses of California policy. And “the California Constitution requires the state to reimburse local agencies and school districts for certain costs mandated by the state.”

There are about 23,800 school buses on the road in California. About 500 are already electric, with conversion initiatives expected to expand the total, and 2,078 electric buses have been ordered.

There are – as always- exceptions to the rule. So-called “frontier districts,” which have less than 600 students or are in a county with a population density of less than ten persons per square mile, can file for a five-year extension, drawing on lessons from large electric bus fleets about route length and charging constraints. However, they must “reasonably demonstrate that a daily planned bus route for transporting pupils to and from school cannot be serviced through available zero-emission technology in 2035.”

Califonia is the fifth US state to mandate electric school buses, and jurisdictions like British Columbia are deploying electric school buses as well. Connecticut, Maryland, Maine, and New York implemented similar legislation, while California continues broader zero-emission freight adoption with Volvo VNR electric trucks entering service across the state.

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Rhode Island 100% Renewable Electricity by 2030 outlines pathways via offshore wind, retail solar, RECs, and policy reforms, balancing decarbonization, grid reliability, economics, and equity to close a 4,600 GWh supply gap affordably.

Key Points

A statewide plan to meet all electricity demand with renewables by 2030 via offshore wind, solar, and REC policies.

✅ Up to 600 MW offshore wind could add 2,700 GWh annually

✅ Retail solar programs may supply around 1,500 GWh per year

✅ Amend RES to retain RECs and align supply with real-time demand

A year ago, Executive Order 20-01 cemented in a place Rhode Island’s goal to meet 100% of the state’s electricity demand with renewable energy by 2030, aligning with the road to 100% renewables seen across states. The Rhode Island Office of Energy Resources (OER) worked through the year on an economic and energy market analysis, and developed policy and programmatic pathways to meet the goal.

In the most recent development, OER and The Brattle Group co-authored a report detailing how this goal will be achieved, The Road to 100% Renewable Electricity – The Pathways to 100%.

The report includes economic analysis of the key factors that will guide Rhode Island as it accelerates adoption of carbon-free renewable resources, complementing efforts that are tracking progress on 100% clean energy targets nationwide.

The pathway rests on three principles: decarbonization, economics and policy implementation, goals echoed in Maine’s 100% renewable electricity target planning.

The report says the state needs to address the gap between projected electricity demand in 2030 and projected renewable generation capacity. The report predicts a need for 4,600 GWh of additional renewable energy to close the gap. Deploying that much capacity represents a 150% increase in the amount of renewable energy the state has procured to date. The final figure could as much as 600-700 GWh higher or lower.

Addressing the gap
The state is making progress to close the gap.

Rhode Island recently announced plans to solicit proposals for up to 600 MW of additional offshore wind resources. A draft request for proposals (RFP) is expected to be filed for regulatory review in the coming months, aligning with forecasts that one-fourth of U.S. electricity will soon be supplied by renewables as markets mature. Assuming the procurement is authorized and the full 600 MW is acquired, new offshore wind would add about 2,700 GWh per year, or about 35% of 2030 electricity demand.

Beyond this offshore wind procurement, development of retail solar through existing programs could add another 1,500 GWh per year. That leaves a smaller–though still sizable–gap of around 400 GWh per year of renewable electricity.

All this capacity will come with a hefty price. The report finds that rate impacts would likely boost e a typical 2030 monthly residential bill by about $11 to $14 with utility-scale renewables, or by as much as $30 if the entire gap were to be filled with retail solar.

The upside is that if the renewable resources are developed in-state, the local economic activity would boost Rhode Island’s gross domestic product and local jobs, especially when compared to procuring out-of-state resources or buying Renewable Energy Credits (RECs), and comes as U.S. renewable electricity surpassed coal in 2022 across the national grid.

Policy recommendations
One policy item that has to be addressed is the state’s Renewable Energy Standard (RES), which currently calls for meeting 38.5% of electricity deliveries with renewables by 2035, even as the federal 2035 clean electricity goal sets a broader benchmark for decarbonization. For example, RES compliance at present does not require the physical procurement of power produced by renewable energy facilities. Instead, electricity providers meet their requirements by purchasing RECs.

The report recommends amending the state’s RES to seek methods by which Rhode Island can retain all of the RECs procured through existing policy and program channels, along with RECs resulting from ratepayer investment in net metered projects, while Nevada’s 50% by 2030 RPS provides a useful interim comparison.

The report also recognizes that the RES alone is unlikely to drive sufficient investment renewable generation and should be paired with programs and policies to ensure sufficient renewable generation to meet the 100% goal. The state also needs to address the RECs created by behind-the-meter systems that add mechanisms to better match the timing of renewable energy generation with real-time demand. The policy would have the 100% RES remain in effect beyond 2030 and also match shifts in energy demand, particularly as other parts of the economy electrify.

Fostering equity
The state also is putting a high priority on making sure the transition to renewables is an equitable one.

The report recommends partnering with and listening to frontline communities about their needs and goals in the clean energy transition. This will include providing traditionally underserved communities with expert consultation to help guide decision making. The report also recommends holding listening sessions to increase accessibility to and understanding of energy system basics.

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EVI-Pro Lite EV Load Forecasting helps utilities model EV charging infrastructure, grid load shapes, and resilient energy systems, factoring home, workplace, and public charging behavior to inform planning, capacity upgrades, and flexible demand strategies.

Key Points

A NREL tool projecting EV charging demand and load shapes to help utilities plan the grid and right-size infrastructure.

✅ Visualizes weekday/weekend EV load by charger type.

✅ Tests home, workplace, and public charging access scenarios.

✅ Supports utility planning, demand flexibility, and capacity upgrades.

As electric vehicles (EVs) continue to grow in popularity, utilities and community planners are increasingly focused on building resilient energy systems that can support the added electric load from EV charging, including a possible EV-driven demand increase across the grid.

But forecasting the best ways to adapt to increased EV charging can be a difficult task as EV adoption will challenge state power grids in diverse ways. Planners need to consider when consumers charge, how fast they charge, and where they charge, among other factors.

To support that effort, researchers at the National Renewable Energy Laboratory (NREL) have expanded the Electric Vehicle Infrastructure Projection (EVI-Pro) Lite tool with more analytic capabilities. EVI-Pro Lite is a simplified version of EVI-Pro, the more complex, original version of the tool developed by NREL and the California Energy Commission to inform detailed infrastructure requirements to support a growing EV fleet in California, where EVs bolster grid stability through coordinated planning.

EVI-Pro Lite’s estimated weekday electric load by charger type for El Paso, Texas, assuming a fleet of 10,000 plug-in electric vehicles, an average of 35 daily miles traveled, and 50% access to home charging, among other variables, as well as potential roles for vehicle-to-grid power in future scenarios. The order of the legend items matches the order of the series stacked in the chart.

Previously, the tool was limited to letting users estimate how many chargers and what kind of chargers a city, region, or state may need to support an influx of EVs. In the added online application, those same users can take it a step further to predict how that added EV charging will impact electricity demand, or load shapes, in their area at any given time and inform grid coordination for EV flexibility strategies.

“EV charging is going to look different across the country, depending on the prevalence of EVs, access to home charging, and the kind of chargers most used,” said Eric Wood, an NREL researcher who led model development. “Our expansion gives stakeholders—especially small- to medium-size electric utilities and co-ops—an easy way to analyze key factors for developing a flexible energy strategy that can respond to what’s happening on the ground.”

Tools to forecast EV loads have existed for some time, but Wood said that EVI-Pro Lite appeals to a wider audience, including planners tracking EVs' impact on utilities in many markets. The tool is a user-friendly, free online application that displays a clear graphic of daily projected electric loads from EV charging for regions across the country.

After selecting a U.S. metropolitan area and entering the number of EVs in the light-duty fleet, users can change a range of variables to see how they affect electricity demand on a typical weekday or weekend. Reducing access to home charging by half, for example, results in higher electric loads earlier in the day, although energy storage and mobile charging can help moderate peaks in some cases. That is because under such a scenario, EV owners might rely more on public or workplace charging instead of plugging in at home later in the evening or at night.

“Our goal with the lite version of EVI-Pro is to make estimating loads across thousands of scenarios fast and intuitive,” Wood said. “And if utilities or stakeholders want to take that analysis even deeper, our team at NREL can fill that gap through partnership agreements, too. The full version of EVI-Pro can be tailored to develop detailed studies for individual planners, agencies, or utilities.”

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Building Energy Iowa Wind Farm delivers 30 MW of renewable energy near Des Moines, generating 110 GWh annually with wind turbines, a long-term PPA, CO2 reduction, and community benefits like jobs and clean power.

Key Points

Building Energy Iowa Wind Farm is a 30 MW project generating 110 GWh a year, cutting CO2 and supporting local jobs.

✅ 30 MW capacity, 10 onshore turbines (3 MW each)

✅ ~110 GWh per year; power for 11,000 households

✅ Long-term PPA; jobs and emissions reductions in Iowa

With 110 GWh generated per year, the plant will be beneficial to Iowa's environment, reflecting broader Iowa wind power investment trends, contributing to the reduction of 100,000 tons of CO2 emissions, as well as providing economic benefits to host local communities.

Building Energy SpA, multinational company operating as a global integrated IPP in the Renewable Energy Industry, amid milestones such as Enel's 450 MW U.S. wind project, through its subsidiary Building Energy Wind Iowa LLC, announces the inauguration of its first wind farm in Iowa, which adds up to 30 MW of wind distribution generation capacity. The project, located north of Des Moines, in Story, Boone, Hardin and Poweshiek counties, will generate approximately 110 GWh per year. The beginning of operations has been celebrated on the occasion of the Wind of Life event in Ames, Iowa, in the presence of Andrea Braccialarghe, MD America of Building Energy, Alessandro Bragantini, Chief Operating Officer of Building Energy and Giuseppe Finocchiaro, Italian Consul General.

The overall investment in the construction of the Iowa distribution generation wind farms amounted to $58 million and it sells its energy and related renewable credits under a bundled, long-term power purchase agreement with a local utility, reflecting broader utility investment trends such as WEC Energy's Illinois wind stake in the region.

The wind facility, developed, financed, owned and operated by Building Energy, consists of ten 3.0 MW geared onshore wind turbines, each with a rotor diameter of 125 meters mounted on an 87.5 meter steel tower. The energy generated will satisfy the energy needs of 11,000 U.S. households every year, similar in community impact to North Carolina's first wind farm, while avoiding the emission of about 70,000 tons of CO2 emissions every year, according to US Environmental Protection Agency methodology, which is equivalent to taking 15,000 cars off the road each year.

Besides the environmental benefits, the wind farm also has advantages for the local community, providing it with clean energy and creating jobs for local Iowans. The project involved more than a hundred of local skilled workers during the construction phase. Some of those jobs will be also permanent as necessary for the operation and maintenance activities as well as for additional services such as delivery, transportation, spare parts management, landscape mitigation, and further environmental monitoring studies.

The Company is present in many US states since 2013 with more than 500 MW of projects under development, spread across different renewable energy technologies, and aligning with federal initiatives like DOE wind energy awards that support innovation.

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