US Army deploys its first floating solar array


US Army deploys its first floating solar array

NFPA 70e Training

Our customized live online or in‑person group training can be delivered to your staff at your location.

  • Live Online
  • 6 hours Instructor-led
  • Group Training Available
Regular Price:
$199
Coupon Price:
$149
Reserve Your Seat Today

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.

 

Related News

Related News

France's new EV incentive rules toughen market for Chinese cars

France EV Incentive Rules prioritize EU-made electric vehicles, tying subsidies to manufacturing emissions and carbon footprint, making Stellantis, Renault, and Tesla Model Y eligible while excluding many China-built models under a new eligibility list.

 

Key Points

Links EV subsidies to manufacturing emissions, favoring EU-made models and restricting many China-built cars.

✅ Subsidies tied to lifecycle manufacturing emissions.

✅ EU production favored; many China-built EVs excluded.

✅ Eligible: Stellantis, Renault, Tesla Model Y; not Model 3.

 

France's revamped new EV rules on consumer cash incentives for electric car purchases favour vehicles made in France and Europe over models manufactured in China, a government list of eligible car types published recently has showed.

Some 65% of electric cars sold in France will be eligible for the scheme, which from Friday will include new criteria covering the amount of carbon emitted in the manufacturing of an electric vehicle (EV).

The list of eligible models includes 24 produced by Franco-Italian group Stellantis (STLAM.MI) and five by French carmaker Renault (RENA.PA). Elon Musk's Tesla (TSLA.O) Model Y will be eligible but not its Model 3.

Electric vehicle brand MG Motors, owned by China's SAIC, said it expects the new rules to weigh on the French EV market, despite the global surge in EV sales seen in recent years.

"There are cars that will entirely lose their competitiveness", an MG spokesperson told Reuters, adding that the brand had decided not to apply for the bonus scheme for its MG4 model because it was "designed to exclude us".

French Finance Minister Bruno Le Maire hailed what he called the new rules' incentive for automakers to reduce their carbon footprint.

"We will no longer be subsidising car production that emits too much CO2," he said in a statement.

President Emmanuel Macron's government has wanted to make French and European-made EVs more affordable for domestic consumers relative to cheaper vehicles produced in China, amid a record EV market share in the country.

The average retail price of an EV in Europe, even as the EU EV share grew during lockdown months, was more than 65,000 euros ($71,000) in the first half of 2023, compared with just over 31,000 euros in China, according to research by Jato Dynamics.

The French government already offered buyers a cash incentive of between 5,000 and 7,000 euros to get more electric cars on the road, at a total cost of 1 billion euros ($1.1 billion) per year.

However, in the absence of cheap European-made EVs, a third of all incentives are going to consumers buying EVs made in China, French finance ministry officials say. The trend has helped spur a surge in imports and a growing competitive gap with domestic producers.

China's auto industry relies heavily on coal-generated electricity, meaning many Chinese-made EVs will henceforth not qualify.

The Ademe agency overseeing the process studied the eligibility of almost 500 EV models and their variants to include in the scheme.

Dacia, the low-cost Renault brand, saw its Spring model imported from China excluded from the list.

Tesla's Model 3 is made in China. The Model Y, which is larger and more expensive, is made mainly in Berlin and was the top selling EV in France over the first 11 months of the year, amid forecasts that EVs could dominate within a decade in many markets.

 

Related News

View more

Biden's proposed tenfold increase in solar power would remake the U.S. electricity system

US Solar Power 2050 Target projects 45% electricity from solar, advancing decarbonization with clean energy, wind, nuclear, hydropower, hydrogen, and scalable energy storage, while modernizing the grid and transmission to cut emissions and create jobs.

 

Key Points

A goal for solar to supply ~45% of US electricity by 2050, backed by energy storage and other low-carbon generation.

✅ Requires 1,050-1,570 GW solar and matching storage capacity

✅ Utility-scale buildout uses ~10M acres; rooftop 10-20% of capacity

✅ Complemented by wind, nuclear, hydropower, hydrogen, and flexible turbines

 

President Joe Biden has called for major clean energy investments as a way to curb climate change and generate jobs. On Sept. 8, 2021, the White House released a report produced by the U.S. Department of Energy that found that solar power could generate up to 45% of the U.S. electricity supply by 2050, compared to less than 4% today, with about 3% in 2020 noted by industry observers. The Conversation asked Joshua D. Rhodes, an energy technology and policy researcher at the University of Texas at Austin, what it would take to meet this target.

Why such a heavy focus on solar power? Doesn’t a low-carbon future require many types of clean energy, even though wind and solar could meet about 80% of demand according to some research?
The Energy Department’s Solar Futures Study lays out three future pathways for the U.S. grid: business as usual; decarbonization, meaning a massive shift to low-carbon and carbon-free energy sources; and decarbonization with economy-wide electrification of activities that are powered now by fossil fuels.

It concludes that the latter two scenarios would require approximately 1,050-1,570 gigawatts of solar power, which would meet about 44%-45% of expected electricity demand in 2050, even as renewables approach one-fourth of U.S. generation in the near term. For perspective, one gigawatt of generating capacity is equivalent to about 3.1 million solar panels or 364 large-scale wind turbines.

The rest would come mostly from a mix of other low- or zero-carbon sources, including wind, nuclear, hydropower, biopower, geothermal and combustion turbines run on zero-carbon synthetic fuels such as hydrogen. Energy storage capacity – systems such as large installations of high-capacity batteries – would also expand at roughly the same rate as solar, with record growth in solar and storage anticipated by industry in coming years.

One advantage solar power has over many other low-carbon technologies is that most of the U.S. has lots of sunshine. Wind, hydropower and geothermal resources aren’t so evenly distributed: There are large zones where these resources are poor or nonexistent.

Relying more heavily on region-specific technologies would mean developing them extremely densely where they are most abundant. It also would require building more high-voltage transmission lines to move that energy over long distances, which could increase costs and draw opposition from landowners – a key reason the grid isn't yet 100% renewable according to experts – in many regions.

Is generating 45% of U.S. electricity from solar power by 2050 feasible?
I think it would be technically possible but not easy. It would require an accelerated and sustained deployment far larger than what the U.S. has achieved so far, even as the cost of solar panels has fallen dramatically, and wind, solar and batteries are 82% of the utility-scale pipeline across the country. Some regions have attained this rate of growth, albeit from low starting points and usually not for long periods.

The Solar Futures Study estimates that producing 45% of the nation’s electricity from solar power by 2050 would require deploying about 1,600 gigawatts of solar generation. That’s a 1,450% increase from the 103 gigawatts that are installed in the U.S. today, even as wind and solar trend toward 30% of U.S. electricity in some outlooks. For perspective, there are currently about 1,200 gigawatts of electricity generation capacity of all types on the U.S. power grid.

The report assumes that 10%-20% of this new solar capacity would be deployed on homes and businesses. The rest would be large utility-scale deployments, mostly solar panels, plus some large-scale solar thermal systems that use mirrors to reflect the sun to a central tower.

Assuming that utility-scale solar power requires roughly 8 acres per megawatt, this expansion would require approximately 10.2 million to 11.5 million acres. That’s an area roughly as big as Massachusetts and New Jersey combined, although it’s less than 0.5% of total U.S. land mass.

I think goals like these are worth setting, but are good to reevaluate over time to make sure they represent the most prudent path.

 

Related News

View more

Climate change, not renewables, threaten grid

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

 

Key Points

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

✅ Replaces coal generation with solar plus battery storage

✅ Enhances grid reliability during climate-driven heatwaves

✅ Promotes energy efficiency and demand response programs

 

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

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

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

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

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

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

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

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

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

 

Related News

View more

America's Largest Energy Customers Set a Bold New Ambition to Achieve a 90% Carbon-free U.S. Electricity System by 2030 and Accelerate Clean Energy Globally

Clean Energy Buyers Alliance 2030 Goal targets a 90% carbon-free U.S. grid, accelerating power-sector decarbonization via corporate renewable energy procurement, market and policy reforms, and customer demand to enable net-zero electrification across industries.

 

Key Points

The Alliance's plan to reach a 90% carbon-free U.S. electricity system by 2030 via customer-driven markets and policy.

✅ Corporate buyers scale renewable PPAs and aggregation

✅ Market and policy reforms unlock clean power access

✅ Goal aligns with net-zero and widespread electrification

 

The Clean Energy Buyers Association (CEBA) and the Clean Energy Buyers Institute (CEBI), which together make up the Clean Energy Buyers Alliance, have announced a profound new aspiration for impact: a 90% carbon-free U.S. electricity system by 2030 and a global community of energy customers driving the global energy transition forward.

Alongside the two organizations’ bold new vision of the future – customer-driven clean energy for all – the Alliance will super-charge the work of its predecessor organizations, the Renewable Energy Buyers Alliance (REBA) and the REBA Institute, which represent the most iconic global companies with more than $6 trillion dollars in annual revenues and 14 million employees.

“This is the decisive decade for climate action and especially for decarbonization of the power sector,” said Miranda Ballentine, CEO of CEBA and CEBI. “To achieve a net-zero economy worldwide by 2050, the United States must lead. And the power sector must accelerate toward a 2030 timeline as electrification of other industries will be driving up power use.”

In the U.S. alone, more than 60% of electricity is consumed by the commercial and industrial sectors. Institutional energy customers have accelerated the deployment of clean energy solutions over the last 10 years to achieve increasingly ambitious greenhouse gas reduction targets, even as a federal coal plan remains under debate, and further cement the critical role of customers in decarbonizing the energy system. The Clean Energy Buyers Association Deal Tracker shows that 7.9 GW of new corporate renewable energy project announcements in the first three quarters of this year are equivalent to 40% of all new carbon free energy capacity added in the U.S. so far in 2021.

“With our new vision of customer-driven clean energy for all, we are also unveiling new organization brands,” Ballentine continued. “I’m excited to announce that REBA will become CEBA—the Clean Energy Buyers Association—and will focus on activating our community of energy customers and partners to deploy market and policy solutions for a carbon-free energy system. The REBA Institute will become the Clean Energy Buyers Institute (CEBI) and will focus on solving the toughest market and policy barriers to achieving a carbon-free energy system in collaboration with policymakers, leading philanthropies, and energy market stakeholders. Together, CEBA and CEBI will make up the new Clean Energy Buyers Alliance.”

To decarbonize the U.S. electricity system 90% by 2030, a goal aligned with California's 100% carbon-free mandate efforts, and to activate a community of customers driving clean energy around the world, the Clean Energy Buyers Alliance will drive three critical transformations to:

Unlock markets so that energy customers can use their buying power and market-influence, building on a historic U.S. climate deal this year, to accelerate electricity decarbonization.

Catalyze communities of energy customers to actively choose clean energy through Mission Innovation collaborations and to do more together than they could on their own.

Decarbonize the grid for all, since not every energy customer can or will use their buying power to choose clean energy.

“The Clean Energy Buyers Alliance is setting the bar for what energy buyers, utilities and governments should and need to be doing to achieve a carbon-free energy future,” said Michael Terrell, CEBA board chair and Director of Energy at Google. “This ambitious approach is a critical step in tackling climate change. The time for meaningful climate action is now and we must collectively be bolder and more ambitious in our actions in both the public and private sectors – starting today.”

This new vision of customer-driven clean energy for all is an unprecedented opportunity for every member of the Clean Energy Buyers Alliance community – from energy customers to providers to manufacturers – to all parties up and down the energy supply chain to lead the evolution of a new energy economy, which will require incentives to double investment in clean energy to rise to $4 trillion by 2030.

 

Related News

View more

How France aims to discourage buying of Chinese EVs

France EV Bonus Eligibility Rules prioritize lifecycle carbon footprint, manufacturing emissions, battery sourcing, and transport impacts, reshaping electric car incentives and excluding many China-made EVs while aiming for WTO-compliant, low-emission industrial policy.

 

Key Points

France's EV bonus rules score lifecycle emissions to favor low-carbon models and limit incentives for China-made EVs.

✅ Scores energy, assembly, transport, and battery criteria

✅ Likely excludes China-made EVs with coal-heavy production

✅ Aims to align incentives with WTO-compliant climate goals

 

France has published new eligibility rules for electric car incentives to exclude EVs made in China, even though carmakers in Europe do not have more affordable rival models on the French market.


WHY IS FRANCE REVISING ITS EV BONUS ELIGIBILITY RULES?
The French government currently offers buyers a cash incentive of between 5,000 and 7,000 euros in cash for eligible models to get more electric cars on the road, at a total cost of 1 billion euros ($1.07 billion) per year.

However, in the absence of cheap European-made EVs, a third of all incentives are going to consumers buying EVs made in China, a French finance ministry source said. The trend has helped spur a Chinese EV push into Europe and a growing competitive gap with domestic producers.

The scheme will be revamped from Dec. 15 to take into account the carbon emitted in a model's manufacturing process.

President Emmanuel Macron and government ministers have made little secret that they want to make sure French state cash is not benefiting Chinese carmakers.


WHAT DO THE NEW RULES DO?
Under the new rules, car models will be scored against government-set thresholds for the amount of energy used to make their materials, in their assembly and transport to market, as well as what type of battery the vehicle has.

Because Chinese industry generally relies heavily on coal-generated electricity, the criteria are likely to put the bonus out of Chinese carmakers' reach.

The government, which is to publish in December the names of models meeting the new standards, says that the criteria are compliant with WTO rules because exemptions are allowed for health and environmental reasons, and similar Canada EV sales regulations are advancing as well.


WILL IT DO ANYTHING?
With Chinese cars estimated to cost 20% less than European-made competitors, the bonus could make a difference for vehicles with a price tag of less than 25,000 euros, amid an accelerating global transition to EVs that is reshaping price expectations.

But French car buyers will have to wait because Stellantis' (STLAM.MI) Slovakia-made e-C3 city car and Renault's (RENA.PA) France-made R5 are not due to hit the market until 2024.

Nonetheless, many EVs made in China will remain competitive even without the cash incentive, reflecting projections that within a decade many drivers could be in EVs.

With a starting price of 30,000 euros, SAIC group's (600104.SS) MG4 will be less expensive than Renault's equivalent Megane compact car, which starts at 38,000 euros - or 33,000 euros with a 5,000-euro incentive.

Since its 46,000-euro starting price is just below the 47,000-euro price threshold for the bonus, Tesla's (TSLA.O) Y model - one of the best selling electric vehicles in France - could in theory also be impacted by the new rules for vehicles made in China.

S&P Global Mobility analyst Lorraine Morard said that even if most Chinese cars are ineligible for the bonus they would probably get 7-8% of France's electric car market next year, even as the EU's EV share continues to rise, instead of 10% otherwise.

 

Related News

View more

Clean Energy Accounts for 50% of Germany's Electricity

Germany Renewable Energy Milestone marks renewables supplying 53% of power, with record onshore wind and peak solar; hydrogen-ready gas plants and grid upgrades are planned to balance variability amid Germany's coal phase-out.

 

Key Points

It marks renewables supplying 53% of Germany's power, driven by wind and solar records in the energy transition.

✅ 53% of generation and 52% of consumption in 2024

✅ Onshore wind hit record; June solar peaked

✅ 24 GW hydrogen-ready gas plants planned for grid balancing

 

For the first time, renewable energy sources have surpassed half of Germany's electricity production this year, as indicated by data from sustainable energy organizations.

Preliminary figures from the Center for Solar Energy and Hydrogen Research alongside the German Association of Energy and Water Industries (BDEW) show that the contribution of green energy has risen to 53%, echoing how renewable power surpassed fossil fuels in Europe recently, a significant increase from 44% in the previous year.

The year saw a record output from onshore wind energy, as investments in European wind power climbed, and an unprecedented peak in solar energy production in June, as reported by the organizations. Additionally, renewable sources constituted 52% of Germany's total power consumption, marking an increase of approximately five percentage points.

Germany, Europe's leading economy, heavily impacted by Russia's reduced natural gas supplies last year, as Europeans push back from Russian oil and gas across the region, has been leaning on renewable sources to bridge the energy gap. This shift comes even as the country temporarily ramped up coal usage last winter. Having phased out its nuclear power plants earlier this year, Germany aims for an 80% clean energy production by 2030.

In absolute numbers, Germany produced a record level of renewable energy this year, supported by a solar power boost during the energy crisis, approximately 267 billion kilowatt-hours, according to the associations. A decrease of 11% in overall energy production facilitated a reduced reliance on fossil fuels.

However, Europe's transition to more sustainable energy sources, particularly offshore wind, has encountered hurdles such as increased financing and component costs, even as neighbors like Ireland pursue an ambitious green electricity goal within four years. Germany continues to face challenges in expanding its renewable energy capacity, as noted by BDEW’s executive board chairwoman, Kerstin Andreae.

Andreae emphasizes that while energy companies are eager to invest in the transition, they often encounter delays due to protracted approval processes, bureaucratic complexities, and scarcity of land despite legislative improvements.

German government officials are close to finalizing a strategy this week for constructing multiple new gas-fired power plants, despite findings that solar plus battery storage can be cheaper than conventional power in Germany, a plan estimated to cost around 40 billion euros ($44 billion). This initiative is a critical part of Germany's strategy to mitigate potential power shortages that might result from the discontinuation of coal power, particularly given the variability in renewable energy sources.

A crucial meeting involving representatives from the Economy and Finance Ministries, along with the Chancellor's Office, is expected to occur late Tuesday. The purpose is to finalize this agreement, according to sources who requested anonymity due to restrictions on public disclosure.

The Economy Ministry, spearheading this project, confirmed that intensive discussions are ongoing, although no further details were disclosed.

Germany's plan involves utilizing approximately 24 gigawatts (GW) of energy from hydrogen, including emerging offshore green hydrogen options, and gas-fired power plants to compensate for the fluctuations in wind and solar power generation. However, the proposal has faced challenges, particularly regarding the allocation of public funds for these projects, with disagreements arising with the European Union's executive in Brussels.

Environmental groups have also expressed criticism of the strategy. They advocate for an expedited end to fossil fuel usage and remain skeptical about the energy sector's arguments favoring natural gas as a transitional fuel. Despite natural gas emitting less carbon dioxide than coal, environmentalists question its role in Germany's energy future.

 

 

Related News

View more

Sign Up for Electricity Forum’s Newsletter

Stay informed with our FREE Newsletter — get the latest news, breakthrough technologies, and expert insights, delivered straight to your inbox.

Electricity Today T&D Magazine Subscribe for FREE

Stay informed with the latest T&D policies and technologies.
  • Timely insights from industry experts
  • Practical solutions T&D engineers
  • Free access to every issue

Live Online & In-person Group Training

Advantages To Instructor-Led Training – Instructor-Led Course, Customized Training, Multiple Locations, Economical, CEU Credits, Course Discounts.

Request For Quotation

Whether you would prefer Live Online or In-Person instruction, our electrical training courses can be tailored to meet your company's specific requirements and delivered to your employees in one location or at various locations.