US Army deploys its first floating solar array


US Army deploys its first floating solar array

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Floating Solar at Fort Bragg delivers a 1 MW DoD-backed floatovoltaic array on Big Muddy Lake, boosting renewable energy, resilience, and efficiency via water cooling, with Duke Energy and Ameresco supporting backup power.

 

Key Points

A 1 MW floating PV array on Big Muddy Lake, built by the US Army to boost efficiency, resilience, and backup power.

✅ 1 MW array supplies backup power for training facilities.

✅ Water cooling improves panel efficiency and output.

✅ Partners: Duke Energy, Ameresco; DoD's first floating solar.

 

Floating solar had a moment in the spotlight over the weekend when the US Army unveiled a new solar plant sitting atop the Big Muddy Lake at Fort Bragg in North Carolina. It’s the first floating solar array deployed by the Department of Defense, and it’s part of a growing current of support in the US for “floatovoltaics” and other innovations like space-based solar research.

The army says its goal is to boost clean energy, support goals in the Biden solar plan for decarbonization, reduce greenhouse gas emissions, and give the nearby training facility a source of backup energy during power outages. The panels will be able to generate about one megawatt of electricity, which can typically power about 190 homes, and, when paired with solar batteries, enhance resilience during extended outages.

The installation, the largest in the US Southeast, is a big win for floatovoltaics, and projects like South Korea’s planned floating plant show global momentum for the technology, which has yet to make a big splash in the US. They only make up 2 percent of solar installations annually in the country, according to Duke Energy, which collaborated with Fort Bragg and the renewable energy company Ameresco on the project, even as US solar and storage growth accelerates nationwide.

Upfront costs for floating solar have typically been slightly more expensive than for its land-based counterparts. The panels essentially sit on a sort of raft that’s tethered to the bottom of the body of water. But floatovoltaics come with unique benefits, complementing emerging ocean and river power approaches in water-based energy. Hotter temperatures make it harder for solar panels to produce as much power from the same amount of sunshine. Luckily, sitting atop water has a cooling effect, which allows the panels to generate more electricity than panels on land. That makes floating solar more efficient and makes up for higher installation costs over time.

And while solar in general has already become the cheapest electricity source globally, it’s pretty land-hungry, so complementary options like wave energy are drawing interest worldwide. A solar farm might take up 20 times more land than a fossil fuel power plant to produce a gigawatt of electricity. Solar projects in the US have already run into conflict with some farmers who want to use the same land, for example, and with some conservationists worried about the impact on desert ecosystems.

 

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Alectra is 'leading the charge' when it comes to electric vehicles

Alectra EV Leadership Award highlights Plug'n Drive and CEA recognition for AlectraDrive, GridExchange, smart charging, and clean energy innovation at the GRE&T Centre, advancing Canadian EV adoption, utility-led programs, rate design, and smart grid integration.

 

Key Points

An award recognizing Alectra Utilities for leading EV programs and clean energy innovation driven by its GRE&T Centre.

✅ Honors utility-led EV programs: AlectraDrive @Work, @Home, GridExchange

✅ Recognizes smart grid, charging, and innovative rate design

✅ Endorsed by Plug'n Drive and CEA; SEPA and Corporate Knights honors

 

Plug'n Drive and the Canadian Electricity Association (CEA) have awarded Alectra Utilities with the 'Tom Mitchell Electric Vehicle Utility Leadership Award' for its programs: AlectraDrive @Work, AlectraDrive @Home, GridExchange, which explores models where EV owners sell power back to the grid, Advantage Power Pricing and York University Electric Bus Simulation Study. All of these initiatives operate out of Alectra's Green Energy & Technology Centre (GRE&T Centre) and align with emerging vehicle-to-grid integration pilots nationwide.

"We appreciate receiving this award from Plug'n Drive and the CEA," said Brian Bentz, President and CEO, Alectra Inc. "The work that the GRE&T Centre does is an important part of our effort to help build a clean energy future and embrace new technologies like EV charging infrastructure and vehicle-to-grid pilots to help our customers."

The Electric Vehicle Awards, now in their sixth year, recognize Ca­nadian car dealerships and electricity utilities that are leaders in the sale and promotion of electric vehicles, from dedicated education efforts like the EV education centre in Toronto to consumer events such as the Quebec Electric Vehicle Show that raise awareness. Electricity utilities are recognized based on the merits and impacts of utility led EV programs and initiatives.

Earlier this year, Alectra was named Public Power Utility of the Year by the Smart Electric Power Alliance (SEPA) and ranked third in Corporate Knights 'Best 50 Corporate Citizens', as Canadian innovators deploy V1G EV chargers that support smart, grid-friendly charging.

 

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China To Generate Electricity From Compressed Air

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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Ontario Making it Easier to Build Electric Vehicle Charging Stations

Ontario EV Charger Streamlining accelerates public charging connections with OEB-led standardized forms, firm timelines, and utility coordination, leveraging Ontario’s clean electricity grid to expand reliable infrastructure across urban, rural, and northern communities.

 

Key Points

An OEB-led, provincewide procedure that standardizes EV charger connections and accelerates public charging.

✅ Standardized forms, data, and responsibilities across 58 utilities

✅ Firm timelines for studies, approvals, and grid connection upgrades

✅ Supports rural, northern, highway, and community charging expansion

 

The Ontario government is making it easier to build and connect new public electric vehicle (EV) chargers to the province’s world-class clean electricity grid. Starting May 27, 2024, all local utilities will follow a streamlined process for EV charging connections that will make it easier to set up new charging stations and, as network progress to date shows, support the adoption of electric vehicles in Ontario.

“As the number of EV owners in Ontario continues to grow, our government is making it easier to put shovels in the ground to build the critical infrastructure needed for drivers to charge their vehicles where and when they need to,” said Todd Smith, Minister of Energy. “This is just another step we are taking to reduce red tape, increase EV adoption, and use our clean electricity supply to support the electrification of Ontario’s transportation sector.”

Today, each of Ontario’s 58 local electricity utilities have different procedures for connecting new public EV charging stations, with different timelines, information requirements and responsibilities for customers.

In response to Minister Smith’s Letter of Direction, which called on the Ontario Energy Board (OEB) to take steps to facilitate the efficient integration of EV’s into the provincial electricity system, including vehicle-to-building charging applications, the OEB issued provincewide, streamlined procedures that all local utilities must follow for installing and connecting new EV charging infrastructure. This new procedure includes the implementation of standardized forms, timelines, and information requirements which will make it easier for EV charging providers to deploy chargers in all regions of the province.

“Our government is paving the way to an electric future by building the EV charging infrastructure drivers need, where they need it,” said Prabmeet Sarkaria, Minister of Transportation. “By increasing the accessibility of public EV charging stations across the province, including for rural and northern communities, we are providing more sustainable and convenient travel options for drivers.”

“Having attracted over $28 billion in automotive investments in the last three years, our province is a leading jurisdiction in the global production and development of EVs,” said Vic Fedeli, Minister of Economic Development, Job Creation and Trade. “By making it easier to build public charging infrastructure, our government is supporting Ontario’s growing end-to-end EV supply chain and ensuring EV drivers can confidently and conveniently power their journeys.”

This initiative is part of the government’s larger plan to support the adoption of electric vehicles and make EV charging infrastructure more accessible, which includes:

  • The EV ChargeON program – a $91 million investment to support the installation of public EV chargers, including emerging V1G chargers to support grid-friendly deployment, outside of Ontario’s large urban centres, including at community hubs, Ontario’s highway rest areas, carpool parking lots, and Ontario Parks.
  • The new Ultra-Low Overnight price plan which allows customers who use more electricity at night, including those charging their EV, to save up to $90 per year by shifting demand to the ultra-low overnight rate period when provincewide electricity demand is lower and to participate in programs that let them sell electricity back to the grid when appropriate.
  • Making it more convenient for electric vehicle (EV) owners to travel the province with EV fast chargers now installed at all 20 renovated ONroute stations along the province’s busiest highways, the 400 and 401.

The initiative also builds on the government’s Driving Prosperity: The Future of Ontario’s Automotive Sector plan which aims to create a domestic EV battery ecosystem in the province, expand energy storage capacity, and position Ontario as a North American automotive innovation hub by working to support the continued transition to electric, low carbon, connected and autonomous vehicles.

 

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This Thin-Film Turns Heat Waste From Electronics Into Electricity

Pyroelectric Energy Harvesting captures low-grade heat via thin-film materials, converting temperature fluctuations into power for waste heat recovery in electronics, vehicles, and industrial machinery, offering a thermoelectric alternative for microelectronics and exascale systems.

 

Key Points

Thin-film pyroelectric harvesting turns temperature changes into electricity, enabling low-grade waste heat recovery.

✅ Converts low-grade heat fluctuations into usable power

✅ Thin-film design suits microelectronics and edge devices

✅ Alternative to thermoelectrics for waste heat recovery

 

The electronic device you are reading this on is currently producing a modest to significant amount of waste heat that emerging thermoelectric materials could help recover in principle. In fact, nearly 70% of the energy produced annually in the US is ultimately wasted as heat, much of it less than 100 degrees Celsius. The main culprits are computers and other electronic devices, vehicles, as well as industrial machinery. Heat waste is also a big problem for supercomputers, because as more circuitry is condensed into smaller and smaller areas, the hotter those microcircuits get.

It’s also been estimated that a single next-generation exascale supercomputer could feasibly use up to 10% of the energy output of just one coal-fired power station, and that nearly all of that energy would ultimately be wasted as heat.

What if it were possible to convert that heat energy into a useable energy source, and even to generate electricity at night from temperature differences as well?

#google#

It’s not a new idea, of course. In fact the possibility of thermoelectric energy generation, where thermal energy is turned into electricity was recognised as early as 1821, around the same time that Michael Faraday developed the electric motor.

Unfortunately, when the heat source is ‘low grade’, aka less than 100 degrees Celsius, a number of limitations arise, and related approaches for nighttime renewable generation face similar challenges as well. For it to work well, you need materials that have quite high electrical conductivity, but low thermal conductivity. It’s not an easy combination to come by.

Taking a different approach, researchers at the University of California, Berkeley, have developed thin-film that uses pyroelectric harvesting to capture heat-waste and convert heat to electricity in prototype demonstrations. The findings were published today in Nature Materials.

 

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Europe's Green Surge: Renewables Soar, Emissions Plummet, but Challenges Remain

EU Renewable Energy Transition accelerates wind and solar growth, slashes fossil fuels and carbon emissions via the ETS, strengthens energy security with LNG diversification, and advances grid resilience toward 2030 climate targets.

 

Key Points

EU shift to wind, solar, and efficiency that cuts fossil fuels while boosting energy security and grid stability

✅ Fossil fuels at 29% of EU power in 2023, coal and gas down sharply

✅ Renewables hit 44% share; wind 18%, solar 9% and rising

✅ ETS, LNG diversification, and efficiency cut demand and emissions

 

Europe's energy landscape is undergoing a dramatic transformation, fueled by a surge in renewable energy and a corresponding decline in fossil fuel dependence. This shift, documented in both a report from the energy think tank Ember and the European Commission's State of the Energy Union report, paints a picture of progress, but also highlights the challenges that lie ahead on the path to a sustainable future.

 

Fossil Fuels Facing an Unprecedented Decline:

Fossil fuels dipped to their lowest point in recorded history, making up only 29% of EU electricity generation in 2023. This represents a significant 19% decrease in both fossil fuel generation and carbon emissions compared to 2022, exceeding even the reductions witnessed during the pandemic. Coal, the dirtiest fossil fuel, saw the steepest decline, dropping by 26%, while gas generation fell by 15%. This decline is attributed to a combination of factors, including:

Increased deployment of renewables: As renewable energy sources like wind and solar become more affordable and efficient, they are increasingly displacing fossil fuels in the energy mix.

Carbon pricing: The EU's Emissions Trading System (ETS) puts a price on carbon emissions, incentivizing generators to switch to cleaner sources of energy.

Geopolitical tensions: The war in Ukraine and subsequent sanctions on Russia have accelerated Europe's efforts to diversify its energy sources away from Russian fossil fuels across the bloc.


Renewables Ascending to New Heights:

Renewable energy is now the dominant force in the EU, as renewables surpassed fossil fuels in the power mix, contributing a record-breaking 44% of the electricity mix. Wind energy leads the charge, generating 18% of electricity – the equivalent of France's entire demand – and surpassing gas for the first time. Solar power also continues to grow, reaching a 9% share, as solar reshapes electricity prices in Northern Europe and hydropower recovered from its 2022 dry spell. This remarkable growth is driven by factors such as:

Favorable policy frameworks: The EU has set ambitious renewable energy targets and implemented supportive policies, including feed-in tariffs and auctions.

Technological advancements: Advancements in wind turbine and solar panel technologies have made them more efficient and cost-effective.
Public support: There is growing public support for renewable energy, driven by concerns about climate change and energy security.

Beyond generation, energy efficiency is playing a critical role in reducing overall energy demand. Electricity demand in the EU fell by 3.4% in 2023, thanks to factors such as improved building insulation and more efficient appliances.

 

EU on Track to Quit Russian Fossil Fuels:

The report underscores Europe's progress in reducing dependence on Russian fossil fuels. Imports of Russian gas have plummeted to 40-45 billion cubic metres, compared to a staggering 155 bcm in 2021. This represents a remarkable 70% reduction in just one year. This shift has been achieved through a combination of increased LNG imports, diversification of gas suppliers, and accelerated deployment of renewable energy sources.

Overall greenhouse gas emissions decreased by 3% in 2022, putting the EU on track to achieve its ambitious 55% reduction target by 2030. These achievements demonstrate the EU's commitment to climate action and its ability to respond decisively to geopolitical challenges.

 

Success, But Not Complacency:

Despite the positive developments, the Commission warns against complacency. Energy markets remain volatile, fossil fuel subsidies are rising in some countries, and critical infrastructure vulnerabilities persist, while some advocates call for a fossil fuel lockdown to accelerate the transition. The bloc needs to accelerate renewable energy expansion to reach the legally binding 42.5% target by 2030. Additionally, ensuring affordability and security of energy supply will be crucial to maintaining public support for the transition.

 

Challenges and Opportunities:

While some countries like Denmark, Finland, and the Netherlands fall short of EU climate and energy goals, others like Spain, Portugal, and Belgium showcase success with renewables. The Commission is taking action with a plan to support the wind industry, where investments in European wind continue, even as it faces challenges from high inflation and increasing competition from China. Additionally, ensuring timely updates to national energy and climate plans is crucial for achieving the EU's overall objectives.

 

NGOs Urge Faster Action:

NGOs like the Climate Action Network (CAN) express concern about the adequacy of national plans, highlighting the gap between ambition and concrete action. They urge member states to accelerate efforts to meet the 2030 targets and avoid a "lost decade" in climate action. CAN emphasizes the need for more ambitious national energy and climate plans, increased investment in renewables, and accelerated energy efficiency measures.

Europe's energy transition is progressing rapidly, with renewables taking center stage and emissions declining. However, significant challenges remain, necessitating continued commitment, national-level action, and a focus on affordability, security, and sustainability. As 2030 approaches, Europe's green surge must translate into concrete results to secure a climate-neutral future.

 

Looking ahead, several key areas will define the success of Europe's energy transition:

  • Accelerating renewable energy deployment: The EU needs to maintain its momentum in building wind, solar, and other renewable energy sources. This requires sustained clean energy investment, streamlined permitting processes, and addressing grid integration challenges.
  • Ensuring affordability and security of supply: The energy transition must be just and inclusive, ensuring that energy remains affordable for all citizens and businesses. Additionally, diversifying energy sources and enhancing grid resilience are crucial to guarantee energy security.
  • Enhancing energy efficiency: Reducing energy demand remains crucial to achieving climate goals and reducing reliance on fossil fuels. This requires continued investments in building energy efficiency, promoting energy-efficient appliances and technologies, and encouraging behavioral changes.
  • International cooperation: Climate change and energy security are global challenges. The EU must continue to lead by example as renewables exceed 30% globally and collaborate with other countries on technological advancements, policy innovations, and financial support for developing nations undergoing their own energy transitions.

Europe's green surge is a testament to its ambition and collective action. By addressing the remaining challenges and seizing the opportunities ahead, the EU can pave the way for a sustainable and secure energy future for itself and the world.

 

 

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Canada, Germany to work together on clean energy

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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