Coating helps solar panels soak up more sun

By Reuters


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A new type of reflective coating can make solar panels far more efficient, soaking up nearly all available sunlight from nearly any angle, U.S. researchers said.

Current solar panels — which convert energy from the sun into electricity — absorb only about two-thirds of available sunlight.

But surfaces treated with a coating developed at Rensselaer Polytechnic Institute in Troy, New York, can harvest 96.2 percent of sunlight.

"That is a tremendous savings," Rensselaer's Shawn-Yu Lin, whose study appears in the journal Optics Letters, said in a telephone interview.

Lin said the technology addresses two main problems in current solar cells. It captures more colors of solar spectrum and it captures light from all angles.

"If you look at a solar panel, it looks a bit bluish," Lin said. That is "telling you not all of the blue color is being absorbed. It should look totally dark."

The other problem is that solar panels work best when sun shines directly on them. To solve this, large solar arrays mechanically shift position throughout the day — much like sunbathers on a beach.

Lin and colleagues think they have found a better solution.

Their coating is made up of seven layers of porous material stacked in such a way that each enhances the antireflective properties of the layer below.

Together they act as a buffer zone, trapping light from all angles. "Your efficiency increases by 30 percent," Lin said.

He thinks the material could be applied to all types of solar cells.

"It's not going to require many added instruments too adopted this technology," he said.

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Brenmiller Energy and New York Power Authority Showcase Thermal Storage Success

bGen Thermal Energy Storage stores high-temperature heat in crushed rocks, enabling on-demand steam, hot water, or hot air; integrates renewables, shifts load with off-peak electricity, and decarbonizes campus heating at SUNY Purchase with NYPA.

 

Key Points

A rock-based TES system storing heat to deliver steam, hot water, or hot air using renewables or off-peak power.

✅ Uses crushed rocks to store high-temperature heat

✅ Cuts about 550 metric tons CO2 annually at SUNY Purchase

✅ Integrates renewables and off-peak electricity with NYPA

 

Brenmiller Energy Ltd. (NASDAQ: BNRG), in collaboration with the New York Power Authority (NYPA), a utility pursuing grid software modernization to improve reliability, has successfully deployed its first bGen™ thermal energy storage (TES) system in the United States at the State University of New York (SUNY) Purchase College. This milestone project, valued at $2.5 million, underscores the growing role of TES in advancing sustainable energy solutions.

Innovative TES Technology

The bGen™ system utilizes crushed rocks to store high-temperature heat, which can be harnessed to generate steam, hot air, or hot water on demand. This approach allows for the efficient use of excess renewable energy or off-peak electricity, and parallels microreactor storage advances that broaden thermal options, providing a reliable and cost-effective means of meeting heating needs. At SUNY Purchase College, the bGen™ system is designed to supply nearly 100% of the heating requirements for the Physical Education Building.

Environmental Impact

The implementation of the bGen™ system is expected to eliminate approximately 550 metric tons of greenhouse gas emissions annually. This reduction aligns with New York State's ambitious climate goals, including a 40% reduction in greenhouse gas emissions by 2030, even as transmission constraints can limit cross-border imports. The project also demonstrates the potential of TES to support the state's transition to a cleaner and more resilient energy system.

Collaborative Effort

The successful deployment of the bGen™ system at SUNY Purchase College is the result of a collaborative effort between Brenmiller Energy and NYPA. The project was partially funded by a grant from the Israel-U.S. Binational Industrial Research and Development (BIRD) Foundation. This partnership highlights the importance of international cooperation in advancing innovative energy technologies, as seen in OPG-TVA nuclear collaboration efforts across North America.

Future Prospects

The successful installation and operation of the bGen™ system at SUNY Purchase College serve as a model for broader adoption of TES technology in institutional settings, as OPG's SMR commitment signals parallel low-carbon investment across the region. Brenmiller Energy and NYPA plan to share the project's findings through a webinar hosted by the Renewable Thermal Collaborative on May 19, 2025. This initiative aims to promote the scalability and replicability of TES solutions across New York State and beyond.

As the demand for sustainable energy solutions continues to grow, the successful deployment of the bGen™ system at SUNY Purchase College marks a significant step forward in the integration of TES technology into the U.S. energy landscape, while projects like Pickering B refurbishment underscore parallel clean power investments. The project not only demonstrates the feasibility of TES but also sets a precedent for future initiatives aimed at reducing carbon emissions and enhancing energy efficiency.

Brenmiller Energy's commitment to innovation and sustainability positions the company as a key player in the evolving energy sector. With continued support from partners like NYPA and the BIRD Foundation, and as jurisdictions advance first SMR deployments in North America, Brenmiller Energy is poised to expand the reach of its TES solutions, contributing to a more sustainable and resilient energy future.

 

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Ontario Poised to Miss 2030 Emissions Target

Ontario Poised to Miss 2030 Emissions Target highlights how rising greenhouse gas emissions from electricity generation and natural gas power plants threaten Ontario’s climate goals, environmental sustainability, and clean energy transition efforts amid growing economic and policy challenges.

 

Why is Ontario Poised to Miss 2030 Emissions Target?

Ontario Poised to Miss 2030 Emissions Target examines the province’s setback in meeting climate goals due to higher power-sector emissions and shifting energy policies.

✅ Rising greenhouse gas emissions from gas-fired electricity generation

✅ Climate policy uncertainty and missed environmental targets

✅ Balancing clean energy transition with economic pressures

Ontario’s path toward meeting its 2030 greenhouse gas emissions target has taken a sharp turn for the worse, according to internal government documents obtained by Global News. The province, once on track to surpass its reduction goals, is now projected to miss them—largely due to rising emissions from electricity generation, even as the IEA net-zero electricity report highlights rising demand nationwide.

In October 2024, the Ford government’s internal analysis indicated that Ontario was on track to reduce emissions by 28 percent below 2005 levels by 2030, effectively exceeding its target. But a subsequent update in January 2025 revealed a grim reversal. The new forecast showed an increase of about eight megatonnes (Mt) of emissions compared to the previous model, with most of the rise attributed to the province’s energy policies.

“This forecast is about 8 Mt higher than the October 2024 forecast, mainly due to higher electricity sector emissions that reflect the latest ENERGY/IESO energy planning and assumptions,” the internal document stated.

While the analysis did not specify which policy shifts triggered the change, experts point to Ontario’s growing reliance on natural gas. The use of gas-fired power plants has surged to fill temporary gaps created by nuclear refurbishment projects and other grid constraints, even as renewable energy’s role grows. In fact, natural gas generation in early 2025 reached its highest level since 2012.

The internal report cited “changing electricity generation,” nuclear power refurbishment, and “policy uncertainty” as major risks to achieving the province’s climate goals. But the situation may be even worse than the government’s updated forecast suggests.

On Wednesday, Ontario’s auditor general warned that the January projections were overly optimistic. The watchdog’s new report concluded the province could fall even further behind its 2030 emissions target, noting that reductions had likely been overestimated in several sectors, including transportation—such as electric vehicle sales—and waste management. “An even wider margin” of missed goals was now expected, the auditor said.

Environment Minister Todd McCarthy defended the government’s position, arguing that climate goals must be balanced against economic realities. “We cannot put families’ financial, household budgets at risk by going off in a direction that’s not achievable,” McCarthy said.

The minister declined to commit to new emissions targets beyond 2030—or even to confirm that the existing goals would be met—but insisted efforts were ongoing. “We are continuing to meet our commitment to at least try to meet our commitment for the 2030 target,” he told reporters. “But targets are not outcomes. We believe in achievable outcomes, not unrealistic objectives.”

Environmental advocates warn that Ontario’s reliance on fossil-fuel generation could lock the province into higher emissions for years, undermining national efforts to decarbonize Canada’s electricity grid. With cleaning up Canada’s electricity expected to play a central role in both industrial growth and climate action, the province’s backslide represents a significant setback for Canada’s overall emissions strategy.

Other provinces face similar challenges; for example, B.C. is projected to miss its 2050 targets by a wide margin.

As Ontario weighs its next steps, the tension between energy security, affordability, and environmental responsibility continues to define the province’s path toward a lower-carbon future and Canada’s 2050 net-zero target over the long term.

 

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Energy chief says electricity would continue uninterrupted if coal phased out within 30 years

Australia Energy Policy Debate highlights IPCC warnings, Paris Agreement goals, coal phase-out, emissions reduction, renewables, gas, pumped hydro, storage, reliability, and investment certainty amid NEG uncertainty and federal-state tensions over targets.

 

Key Points

Debate over coal, emissions targets, and grid reliability, guided by IPCC science, Paris goals, and market reforms.

✅ IPCC urges rapid cuts and coal phase-out by 2050

✅ NEG's emissions pillar stalled; reliability obligation alive

✅ States, market operators push investment certainty and storage

 

The United Nation’s climate body, the Intergovernmental Panel on Climate Change, on Monday said radical emissions reduction across the world’s economies, including a phase-out of coal by 2050, was required to avoid the most devastating climate change impacts.

The Morrison government dismissed the findings. Treasurer Josh Frydenberg insisted this week that “coal is an important part of the energy mix”.

“If we were to take coal out of the system the lights would go out on the east coast of Australia overnight. It provides more than 60 per cent of our power," he said.

Ms Zibelman, whose organisation operates the nation’s largest gas and electricity markets, said if Australia was to make an orderly transition to low-emissions electricity generation, aligning with the sustainable electric planet vision, “then certainly we would keep the lights on”.

Ms Zibelman said coal assets should be maintained “as long as they are economically viable and we should have a plan to replace them with resources that are lowest cost”.

Those options comprised gas, renewables, pumped hydro and other energy storage, she told ABC radio, as New Zealand weighs electrification to replace fossil fuels.

Under the Paris treaty the government has pledged to lower emissions by 26 per cent by 2030, based on 2005 levels, even as national emissions rose 2% recently according to industry reports.

Labor would increase the goal to a 45 per cent cut - a policy Prime Minister Scott Morrison said last month would " shut down every coal-fired power station in the country and ... increase people’s power bill by about $1,400 on average for every single household”.

The federal government has scrapped its proposed National Energy Guarantee, which would have cut emissions in the electricity sector, but the reliability component of the plan may continue in some form.

The policy was being developed by the Energy Security Board. The group’s chairwoman Kerry Schott has expressed anger at its demise but on Thursday revealed the board was still working on the policy because “nobody told us to stop”.

Speaking at the Melbourne Institute's Outlook conference, she urged the government to revive the emissions reduction component of the plan to provide investment certainty, noting the IEA net-zero report on Canada shows electricity demand rises in decarbonisation.

Energy Minister Angus Taylor, an energy consultant before entering Parliament, on Thursday said the electricity sector would reduce emissions in line with the Paris deal without a mandated target.

Mr Taylor said only a “very brave state” would not support the policy’s reliability obligation.

The federal government has called a COAG energy council meeting for October 26 in Sydney to discuss electricity reliability.

It is understood Mr Taylor has not contacted Victoria, Queensland or the ACT since taking the portfolio, despite needing unanimous support from the states to progress the issue.

The Victorian government goes into caretaker mode on October 30 ahead of that state's election.

Victorian Energy Minister Lily D’Ambrosio said the federal government was “a rabble when it comes to energy policy, and we won’t be signing anything until after the election".

Speaking at the Melbourne Institute conference, prominent business leaders on Thursday bemoaned a lack of political leadership on energy policy and climate change, saying the only way forward appeared to be for companies to take action themselves, with some pointing to Canada's race to net-zero as a case study in the role of renewables.

Jayne Hrdlicka, chief executive of ASX-listed dairy and infant-formula company a2 Milk, said "we all have an obligation to do the very best job we can in managing our carbon footprint".

"We just need to get on doing what we can .. and then hope that policy will catch up. But we can’t wait," she said.

Ms Hrdlicka said the recent federal political turmoil had been frustrating "because if you invest in building relationships as most of us do in Canberra and then overnight they are all changed, you’re starting from scratch".

 

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Ontario Providing Electricity Relief to Families, Small Businesses and Farms During COVID-19

Ontario TOU Electricity Rate Relief offers 24/7 fixed off-peak pricing at 10.1¢/kWh, suspending time-of-use tiers to support residential customers, small businesses, and farms, coordinated by the Ontario Energy Board during COVID-19.

 

Key Points

A 45-day policy fixing TOU power at 10.1¢/kWh 24/7 off-peak to ease costs for residents, small businesses, and farms.

✅ Applies 24/7 off-peak 10.1¢/kWh to all TOU electricity customers.

✅ Automatic bill credit; no application or enrollment required.

✅ Covers residential, small businesses, and farms; OEB coordination.

 

To support Ontarians through the rapidly evolving COVID-19 situation, the Government of Ontario is providing immediate electricity rate relief for families, small businesses and farms paying time-of-use (TOU) rates.

For a 45-day period, the government is working to suspend time-of-use electricity rates, holding electricity prices to the off-peak rate of 10.1 cents-per-kilowatt-hour. This reduced price will be available 24 hours per day, seven days a week to all time-of-use customers, who make up the majority of electricity consumers in the province. By switching to a fixed off-peak rate, time-of-use customers will see rate reductions of over 50 per cent compared to on-peak rates now in effect.

To deliver savings as quickly and conveniently as possible, this discount will be applied automatically to electricity bills without the need for customers to fill out an application form.

"During this unprecedented time, we are providing much-needed relief to Ontarians, specifically helping those who are doing the right thing by staying home and small businesses that have closed or are seeing fewer customers," said Premier Doug Ford. "By adopting a fixed, 24/7 off-peak rate, aligned with ultra-low overnight pricing options, we are making things a little easier during these difficult times and putting more money in people's pockets for other important priorities and necessities."

The Government of Ontario issued an Emergency Order under the Emergency Management and Civil Protection Act to apply the off-peak TOU electricity rate for residential, small businesses, and farm customers who currently pay TOU rates.

"Ontario is fortunate to have a strong electricity system we can rely on during these exceptional times, even as Ottawa's electricity consumption decreased during the pandemic, and our government is proud to provide additional relief to Ontarians who are doing their part to stay home," said Greg Rickford, Minister of Energy, Northern Development and Mines.

"We thank the Ontario Energy Board and our partners at local distribution companies across the province, including initiatives like Hydro One's Ultra-Low Overnight Price Plan that support customers, for taking quick action to make this change and provide immediate support for hardworking people of Ontario," said Bill Walker, Associate Minister of Energy.

Visit Ontario's website to learn more about how the province continues to protect Ontarians from COVID-19.

Quick Facts

  • The Ontario Energy Board sets time-of-use electricity rates for residential and small business customers through the Regulated Price Plan, and provides stable electricity pricing for industrial and commercial companies through separate programs.
  • Time-of-use prices as of November, 2019 ― Off-Peak: 10.1₵/kWh, Mid-Peak: 14.4₵/kWh, On-Peak: 20.8₵/kWh
  • Depending on billing cycles, some customers will see these changes on their next electricity bill. TOU customers whose billing cycle ended before their local distribution company implemented this change will receive the reduced rate as a credit on a future bill.
  • The Ontario Electricity Rebate (OER) will continue to provide a 31.8 per cent rebate on the sub-total bill amount for all existing Regulated Price Plan (RPP) consumers.
  • There are approximately five million residential consumers, farms and some small businesses billed using time-of-use (TOU) electricity prices under the RPP.
  • The Ontario Energy Board has extended the winter ban on disconnections to July 31st.

 

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Energy Vault Secures $28M for California Green Hydrogen Microgrid

Calistoga Resiliency Centre Microgrid delivers grid resilience via green hydrogen and BESS, providing island-mode backup during PSPS events, wildfire risk, and outages, with black-start and grid-forming capabilities for reliable community power.

 

Key Points

A hybrid green hydrogen and BESS facility ensuring resilient, islanded power for Calistoga during PSPS and outages.

✅ 293 MWh capacity with 8.5 MW peak for critical backup

✅ Hybrid lithium-ion BESS plus green hydrogen fuel cells

✅ Island mode with black-start and grid-forming support

 

Energy Vault, a prominent energy storage and technology company known for its gravity storage, recently secured US$28 million in project financing for its innovative Calistoga Resiliency Centre (CRC) in California. This funding will enable the development of a microgrid powered by a unique combination of green hydrogen and battery energy storage systems (BESS), marking a significant step forward in enhancing grid resilience in the face of natural disasters such as wildfires.

Located in California's fire-prone regions, the CRC is designed to provide critical backup power during Public Safety Power Shutoff (PSPS) events—periods when utility companies proactively cut power to prevent wildfires. These events can leave communities without electricity for extended periods, making the need for reliable, independent power sources more urgent as many utilities see benefits in energy storage today. The CRC, with a capacity of 293 MWh and a peak output of 8.5 MW, will ensure that the Calistoga community maintains power even when the grid is disconnected.

The CRC features an integrated hybrid system that combines lithium-ion batteries and green hydrogen fuel cells, even as some grid-scale projects adopt vanadium flow batteries for long-duration needs. During a PSPS event or other grid outages, the system will operate in "island mode," using hydrogen to generate electricity. This setup not only guarantees power supply but also contributes to grid stability by supporting black-start and grid-forming functions. Energy Vault's proprietary B-VAULT DC battery technology complements the hydrogen fuel cells, enhancing the overall performance and resilience of the microgrid.

One of the key aspects of the CRC project is the utilization of green hydrogen. Unlike traditional hydrogen, which is often produced using fossil fuels, green hydrogen is generated through renewable energy sources like solar or wind power, with large-scale initiatives such as British Columbia hydrogen project accelerating supply, making it a cleaner and more sustainable alternative. This aligns with California’s ambitious clean energy goals and is expected to reduce the carbon footprint of the region’s energy infrastructure.

The CRC project also sets a precedent for future hybrid microgrid deployments across California and other wildfire-prone areas, with utilities like SDG&E Emerald Storage highlighting growing adoption. Energy Vault has positioned the CRC as a model for scalable, utility-scale microgrids that can be adapted to various locations facing similar challenges. Following the success of this project, Energy Vault is expanding its portfolio with additional projects in Texas, where it anticipates securing up to US$25 million in financing.

The funding for the CRC also includes the sale of an investment tax credit (ITC), a key component of the financing structure that helps make such ambitious projects financially viable. This structure is crucial as it allows companies to leverage government incentives to offset development costs, including CEC long-duration storage funding, thus encouraging further investment in green energy infrastructure.

Despite some skepticism regarding the transportation of hydrogen rather than producing it onsite, the project has garnered strong support. California’s Public Utilities Commission (CPUC) acknowledged the potential risks of transporting green hydrogen but emphasized that it is still preferable to using more harmful fuel sources. This recognition is important as it validates Energy Vault’s approach to using hydrogen as part of a broader strategy to transition to clean, reliable energy solutions.

Energy Vault's shift from its traditional gravity-based energy storage systems to battery energy storage systems, such as BESS in New York, reflects the company's adaptation to the growing demand for versatile, efficient energy solutions. The hybrid approach of combining BESS with green hydrogen represents an innovative way to address the challenges of energy storage, especially in regions vulnerable to natural disasters and power outages.

As the CRC nears mechanical completion and aims for full commercial operations by Q2 2025, it is poised to become a critical part of California’s grid resilience strategy. The microgrid's ability to function autonomously during emergencies will provide invaluable benefits not only to Calistoga but also to other communities that may face similar grid disruptions in the future.

Energy Vault’s US$28 million financing for the Calistoga Resiliency Centre marks a significant milestone in the development of hybrid microgrids that combine the power of green hydrogen and battery energy storage. This project exemplifies the future of energy resilience, showcasing a forward-thinking approach to mitigating the impact of natural disasters and ensuring a reliable, sustainable energy future for communities at risk. With its innovative use of renewable energy sources and cutting-edge technology, the CRC sets a strong example for future energy storage projects worldwide.

 

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Atlantica - Regulatory Reform To Bring Greener Power To Atlantic Canada

Atlantic Canada Energy Regulatory Reform accelerates smart grids, renewables, hydrogen, and small modular reactors to meet climate targets, enabling interprovincial transmission, EV charging, and decarbonization toward a net-zero grid by 2035 with agile, collaborative policies.

 

Key Points

A policy shift enabling smart grids, clean energy, and transmission upgrades to decarbonize Atlantic Canada by 2035.

✅ Agile rules for smart grids, EV load, and peak demand balancing

✅ Interprovincial transmission: Maritime Link, NB-PEI, Atlantic Loop

✅ Supports hydrogen, SMRs, and renewables to cut GHG emissions

 

Atlantica Centre for Energy Senior Policy Consultant Neil Jacobsen says the future of Atlantic Canada’s electricity grid depends on agile regulations, supported by targeted research such as the $2M Atlantic grid study, that match the pace at which renewable technologies are being developed in the race to meet Canada’s climate goals.

In an interview, Jacobsen stressed the need for a more modernized energy regulatory framework, so the Atlantic Provinces can collaborate to quickly develop and adopt cleaner energy.

To this end, Atlantica released a paper that makes the case for responsive smart grid technology, the adaptation of alternative forms of clean energy, the adaptation of hydrogen as an energy source, petroleum price regulation in Atlantic Canada and small modular reactors.

Jacobsen said regulations need to match Canada’s urgency around reducing greenhouse gas emissions by 40 to 45 percent by 2030, achieving a net-neutral national power grid by 2035 and ultimately a net-zero grid by 2050 in Canada – and the goal that 50 percent of Canadian vehicle sales being electric by 2030.

“It’s an evolution of policy and regulations to adapt to a very aggressive timeline of aggressive climate change and decarbonization targets,” said Jacobsen.

“These are transformational energy and environmental commitments, so the path forward really requires the ability to introduce and adapt and move forward with new clean renewable energy technologies.”

Jacobsen said Atlantica’s recommendations are not a criticism of existing regulations– but an acknowledgment that they need to evolve.

He noted newer, clearer regulations will make way for new energy sources – particularly a region that has the countries highest rates of dependency on fossil fuels and growing climate risks, with Atlantic grids under threat from more intense storms.

“We have a long way to go, but at the same time, we have a lot to celebrate. Atlantic Canada is leading the country in reducing greenhouse gas emissions,” said Jacobsen.

“There are new ways of producing energy that requires us to be able to be much more responsive and this is an opportunity to create a higher level of alignment here, in Atlantic Canada.”

Jacobsen said Atlantica is looking to aid interprovincial cooperation in providing power, echoing calls for a western Canadian grid elsewhere, through projects like the 500-megawatt, 170-kilometre Maritime Link that transports power from the Muskrat Falls hydroelectric dam in Labrador, through Newfoundland and across the Cabot Strait, to Nova Scotia – or NB Power’s export of electricity to P.E.I., via sub-sea cables crossing the Northumberland Strait.

He noted streamlined regulations may allow for more potential wider-scale partnerships, like the proposed Atlantic Loop project, aligning with macrogrid investments that would involve upgrading transmission capacity on the East Coast to allow hydroelectric power from Labrador and Quebec to displace coal use in the region.

Atlantic Canada has led the way with adaption new renewable technologies, noted Jacobsen, referring to nuclear startups Moltex Energy and ARC Nuclear Canada’s efforts to develop small modular nuclear reactor technology in New Brunswick, as well as the potential of adopting hydrogen fuel technology and Nova Scotia’s strides in developing offshore renewable energy.

“I don’t think we have any choice other than to be forceful and aggressive in driving forward a renewable energy agenda.”

Jacobsen said cooperation between the Atlantic provinces is crucial because of how challenging it is to meet energy demand with heavy seasonal and daily variations in energy demand in the region – something smart grid technology could address.

Smart Grid Atlantic is a four-year research and demonstration program testing technologies that provide cleaner local power, support a smarter electricity infrastructure across the region, more renewable power, more information and control over power use and more reliable electricity.

“It can be challenging for utilities to meet those cyclical demands, especially as grids are increasingly exposed to harsh weather across Canada. Smart girds add knowledge of the flow of electrons in a way that can help even out those electricity demands – and quite frankly, those demands will only increase when you look at the electrification of the transportation sector,” he said.

Jacobsen said Atlantica’s paper and call for modernized regulations are only the beginning of a conversation.

 

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