SEIA: 240 Solar Companies Contest Basis for Auxin Solar Tariff Case

Abigail Ross Hopper

More than 240 solar and storage companies are imploring Secretary Gina Raimondo to reject a petition for new anti-circumvention tariffs on solar products as a critical U.S. Department of Commerce deadline approaches, according to the Solar Energy Industries Association (SEIA).

The Department of Commerce must make its preliminary determination in Auxin Solar’s anti-circumvention case by December 1, and the companies on this letter are making clear that an affirmative determination is not justified and will once again stifle America’s ability to deploy clean energy.

“President Biden took a crucial near-term step over the summer to free up a gridlocked solar supply chain, but companies won’t be able to capitalize on the administration’s landmark climate policy if this baseless case isn’t thrown out,” says Abigail Ross Hopper, SEIA’s president and CEO. “The Inflation Reduction Act has launched a steady stream of manufacturing investments in the United States, but more tariffs will only undermine this success.”

The U.S. solar and storage industry remains firm that the case lacks legal merit. Solar cell and module manufacturing requires specialized equipment and is an intensive process. Because of the significant and major manufacturing work done in the Southeast Asian countries named in the investigation, the case does not meet the standard for circumvention.

The manufacturing provisions in the Inflation Reduction Act put SEIA’s goal of 50 GW of U.S. solar production by 2030 within reach, but the Department of Commerce could crush demand with unjustified tariffs. The companies are calling on the Department of Commerce to drop this meritless investigation so the solar and storage industry can continue to grow and invest in domestic manufacturing production.

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FERC Order 2222: Has the promised game changer for US distributed energy resources failed?

FERC Order 2222 has been adhered to by the letter, but not the spirit of the ruling, Sunrun’s Chris Rauscher says.

Before the Inflation Reduction Act and Bipartisan Infrastructure Law and the Biden-era step change for clean energy support they have ushered in, FERC Order 2222 was considered a big deal.

It was a rule change, or set of rule changes, handed down by the Federal Energy Regulatory Commission (FERC) to all of the ISOs and RTOs – the electricity grid and wholesale market operators – in its jurisdiction.

Passed in 2020, FERC Order 2222 commands ISOs and RTOs to reconfigure their wholesale electricity market structures to allow distributed energy resources (DERs) to participate without barriers to entry. That means solar PV, battery storage, smart thermostats, pool pumps and heat pumps, electric vehicles (EVs) and various other technologies like demand side response.

As with the preceding Order 841, which applied specifically to distributed and behind-the-meter energy storage – as opposed to 2222’s broader remit – the resources should be able to provide energy, capacity and ancillary services, FERC ruled.

At the time, then-CEO of the Energy Storage Association Kelly Speakes-Backman said it would allow DERs like residential and small commercial battery energy storage systems to access revenue opportunities and help balance the grid through being aggregated into virtual power plants (VPPs).

Order 2222’s passing was “a victory for enhancing grid reliability, enabling a more resilient grid and lowering costs for consumers,” Speakes-Backman said.

However, success in implementing the order has since then been patchy, to say the least. After it passed, FERC asked the market operators to file compliance plans.

“I think that there was a lot of promise with Order 2222, but I think if FERC takes a close look at all the compliance filings, they can’t do anything but reject every single one of them,” Chris Rauscher, senior director of policy and market development at Sunrun tells Energy-Storage.news.

Rauscher says that Sunrun, the US’ biggest residential solar PV installer with an increasing attachment to battery storage, “worked very hard” and had good dialogue with stakeholders including market operators on Order 2222.

Even so, the company doesn’t see any new incremental opportunities for residential aggregation as a result.

Changes ‘do not induce participation’ in markets

As regular readers will have seen from the feature interview with Chris Rauscher published last week, Sunrun continues to find various opportunities to aggregate customers’ home solar-plus-storage around the US without 2222 being fully enacted.

Compliance filings made to date have perhaps been faithful to the letter of the Order, but not to its spirit. Where rule changes have been made, in many cases they are insufficiently altered to enable aggregations of residential DERs.

“In my view, they have not complied with Order 2222, because the point was not to just change the market rules, the point was to induce participation by these resources,” Rauscher says.

For instance, New York ISO has introduced a 10kW minimum asset size rule for aggregation, which Rauscher points out effectively bars nearly all residential sized systems.

Elsewhere, PJM Interconnection’s wholesale market rules state that assets must be in both energy and capacity markets and here Rauscher says residential systems are unlikely to participate in daily energy markets.

Rauscher concedes also that while it feels disappointing to have seen Order 2222, which could simplify and standardise market participation at scale for aggregated DERs, fail to have an impact, the conversation around the value of DERs in the electricity system has at least been opened.

The Order made the right statement but has fallen down in terms of compliance and implementation, in other words.

‘Still a landmark ruling’

Sonnen Inc CEO Blake Richetta agrees that Order 2222 opened up a conversation that needed to be had. For this alone the ruling is profound, a genuine game changer even, Richetta says.

Richetta argues that industry expectations of Order 2222 may have been simplistic and lacking in understanding of just how major a set of changes would be required to implement the ruling.

It will take a multi-year process of ISOs and RTOs going back and forth with FERC to create a viable framework, rather than it being “some kind of handout for grid services out of nowhere,” as Richetta calls it.

Nonetheless, FERC Order 2222 does establish a direction of travel for the regulated energy markets that is positive.

“Directionally speaking, this country now has a framework that is saying behind-the-meter energy storage systems should be able to be swarm controlled, networked and utilised for the grid of the future and for energy transition, and the decentralisation of the grid,” Richetta says.

“[FERC Order 2222] is still a landmark to me, because before that, I don’t know that it was for sure that that was the direction our country was taking at all.”

As a home battery storage provider with a focus on virtual power plant (VPP) business models, sonnen has noticed that its participation in the CAISO market in California has become smoother since Order 2222 was passed.

That’s an indirect impact, Richetta says. Even more indirect is the impact on Texas’ ERCOT market, which isn’t even a FERC-overseen jurisdiction. Nonetheless, sonnen is preparing an aggregated VPP business model launch in Texas and has noticed ERCOT has been benchmarking Order 2222 against its own efforts to integrate DERs.

Sunrun has partnered with Ford to turn the automaker’s new F150 Lightning electric truck into a vehicle-to-home and vehicle-to-grid distributed energy resource. Image: Ford / Sunrun.

Electrification cannot be ignored

sonnen’s Blake Richetta says his enthusiasm for FERC Order 2222 remains very high. Sunrun’s Chris Rauscher on the other hand still finds frustration in the perceived snail’s pace of implementation.

Most US wholesale energy markets were created a couple of decades ago as deregulation happened, and were, understandably, structured around coal and oil plants. That gave way to restructuring markets around natural gas as the marginal unit about 10 years ago.

That of course doesn’t lend itself well to the paradigm of distributed energy resources, being focused as it is on centralised thermal power generation. In making changes to market rules that don’t address this paradigm shift, RTOs and ISOs are largely “tinkering around the edges” rather than making changes to how markets are structured.

There is also the question that a lot of stakeholders in the energy sector are still tied to fossil fuel generation and have the most influential voice in energy markets.

Chris Rauscher says too that various stakeholders fear that allowing lots of smaller assets to participate will only complicate market operation.

“That, combined with the markets just being set up for fossil fuel interests, stakeholder groups being dominated by fossil fuel interests, you get to where we’re at today. Which is compliance filings that may adhere to the letter of Order 2222, but certainly don’t abide by the spirit,” Rauscher says.

The US clean energy market is already growing rapidly and is set for even faster growth, driven by the Inflation Reduction Act’s tax incentive policies. Rauscher says that grid and market operators can’t ignore the pace of electrification.

As everything from transport to heating becomes electrified, annual kilowatt-hour consumption is “going to double, at least,” Rauscher says. DERs can be a tool of flexibility to hold peak demand for energy from the grid steady or even reduce it, and the sooner markets recognise that, the better.

Energy-Storage.news’ publisher Solar Media will host the 5th Energy Storage Summit USA, 28-29 March 2023 in Austin, Texas. Featuring a packed programme of panels, presentations and fireside chats from industry leaders focusing on accelerating the market for energy storage across the country. For more information, go to the website.

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Energy Vault expands into Europe, green hydrogen and starts building gravity storage system in US

Construction of the first commercial system using Energy Vault’s gravity-based technology is underway in Rudong, China. Image: Business Wire.

Energy Vault has provided a dizzying variety of updates in its Q3 results, covering European battery storage, a green hydrogen system, a new CFO and its gravity-based energy storage deployments in the US and China.

Financial results and CFO change

Having listed on the New York Stock Exchange earlier this year, the firm now publishes quarterly results. In the three months to September 30, 2022, the company had US$1.7 million in revenue, a net loss of US$28.8 million and adjusted EBITDA loss of US$27.2 million.

For the first nine months of the year, revenue was US$45.6 million (mainly from a licensing agreement in China) and adjusted EBITDA was nearly breakeven at negative US$0.2 million. It has reiterated its full-year guidance of US$75-100 million and 2022/23 combined revenue of US$680 million.

The firm has also appointed a new CFO in Jan Kees van Gaalen who replaces interim incumbent David Hitchcock, effective 16 November, who had been overseeing the finances since the departure of Andrea Wuttke earlier this year. Van Gaalen joins from OneSpan, a Nasdaq-listed cybersecurity firm.

Energy Vault expands in Europe and adds green hydrogen solutions

Alongside a roundup of its project announcements during the third quarter, the company revealed three major developments. In total over the three-month period, it has signed and booked orders for 495MWh and received project awards of 2GWh.

The first is using the proprietary EVx gravity-based technology for which it is known. Energy Vault has started construction on an 18MW/36MWh system in Texas for Enel Green Power, a partnership first announced in mid-2021, for a mid-2023 delivery date.

The second is using conventional battery storage which the firm has increasingly started deploying under its Energy Vault Solutions (EVS) segment. It will deploy a 410MW/820MWh system for an unnamed ‘large renewable energy developer’ with expected completion in 2024.

The third is a new project for a western utility in the US in which it will deploy a 48-hour long duration hybrid system utilising green hydrogen technology, a new addition to its technology portfolio. The 300MWh project will be one of the largest in the world, the firm said.

“The introduction of green hydrogen into our technology portfolio further validates our technical differentiation with our energy management software platform and the market for hybrid short and long duration integrated systems,” said Robert Piconi, Chairman and CEO of Energy Vault.

The firm has also provided an update on and photos of the construction of the first commercial deployment of its EVx solution in China. The 25MW/100MWh project will achieve commercial deployment in the first half of 2023, it said.

Previously announced projects during the quarter covered by Energy-Storage.news include a 500MWh BESS for a solar farm in Victoria, Australia, an agreement with US developer Jupiter Power for 2.4GWh of domestic-content BESS deployments and a 2GWh mandate for its gravity-based solution in China.

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Thermal energy storage tech deployed by start-ups Hyme Energy, Azelio in Denmark and UAE

Azelio’s thermal energy storage unit at a site in Dubai, UAE, has been completed. Image: Azelio / ALEC Energy.

Hyme Energy will deploy a 20-hour hydroxide molten salt-based thermal energy storage system in Rønne, Denmark, for 2024 while Azelio has just completed the installation of a unit in Dubai, UAE.

Hyme has partnered with utility Bornholms Energi & Forsyning (BEOF) to deploy the demonstrator unit at a combined heat and power plant in the town on Bornholm, described as an ‘energy island’.

The 1MW/20MWh system is based proprietary corrosion control technology and will be the first in the world to deploy molten hydroxide salts. It will provide heat, power and also ancillary services for the local grid.

The deployment is part of a wider project demonstrating the combination of storage technologies deployed in a retrofit of a traditional power plant, though Hyme’s press release did not reveal the others.

‘2nd Life in Power Plants’ seeks to show that the technologies can cost-efficiently replace fossil fuels in ensuring a reliable supply as a back-up to intermittent renewables. Such storage will be particularly needed on islands like Bornholm, Hyme said.

The project has been supported “generously” by the EU’s Horizon Europe programme, the bloc’s €95 billion (US$99 billion) scheme for research and innovation, it added.

The company’s storage plant can store 200 MWh-10 GWh of energy capacity or more at a full-output duration of four to 24 hours.

Ask Løvschall-Jensen, the CEO of Hyme Energy, commented: “We start small, but will together (with BEOF) show all that the technology can do. In the longer run, Hyme aims to perform full retrofits of combined heat and power plants with GWhs of storage.”

A diagram demonstration Hyme’s thermal energy storage system. Image: Hyme Energy.

Thermal energy storage unit completed in Dubai, UAE

Concurrent with Hyme’s announcement was the news that solar solutions firm ALEC Energy has completed the installation of a TES.POD system, the thermal long duration energy storage technology from Sweden-based firm Azelio.

The unit has been deployed in an off-grid microgrid setup at a visitor centre in the Mohammed bin Rashid Al Maktoum Solar Complex (MBR) in Dubai which features a concentrated solar power (CSP) called Noor Energy 1.

It was announced in late 2020, representing Azelio’s first commercial order, and Energy-Storage.news revealed at the time that it would have a 12kW output and 13 hours, or roughly 169kWh, of energy storage.

An adjacent lithium-ion battery energy storage system will manage the overall stability of the visitor centre’s microgrid while Azelio’s unit will provide energy shifting for baseload power.

Azelio CEO Jonas Wallmander said: “The hybrid system supplying power to Noor Energy 1 Visitor Center project is a milestone installation demonstrating how our long-duration energy storage system can form a vital part of a micro-grid for around-the-clock clean power, while serving as a reference project for our solution in the MENA region.”

The company’s technology works by storing energy as heat, up to 600 degrees Celsius, in phase change material made of aluminium. The heat energy is then converted to electricity using a Stirling engine at an efficiency of up to 90%, the company claims.

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Sungrow and Thai government body partner on energy storage and green hydrogen

Sungrow at the recent All-Energy Australia 2022 show. Image: Sungrow.

Sungrow has signed a memorandum of understanding (MOU) to collaborate on energy transition topics with the Provincial Electricity Authority (PEA) of Thailand.

The China-headquartered solar PV inverter and energy storage system manufacturer signed the MOU yesterday with PEA, which is a governmental body responsible for providing electricity and overseeing electricity network planning strategy in most of the country.

Overseen by the Ministry of Interior, its roles include deciding the technological standards for equipment and solutions to be connected to the grid.

Sungrow said the two parties will cooperate on energy storage, green hydrogen, green bonds and blockchain technology with the intent to further Thailand’s aims of a low-carbon economy. Thailand is targeting carbon neutral status by 2050 and net zero emissions by 2065.

At the moment, renewable energy accounts for about 11% of the energy mix, but a target has been set to reach 37% – equivalent to about 2,766MW of renewables – by 2037.

According to the solar and storage tech company, the collaboration is a sign of growing demand for renewable energy in Southeast Asia, as well as an indicator that Thailand’s low-carbon energy transition will be driven forward by public-private partnerships like this one.

Sungrow has supplied more than 1GW of solar PV inverters in Thailand, while it was responsible for supplying what is thought to be Southeast Asia’s largest battery energy storage system (BESS) so far to a project in the country.

That project combined 49MW of Sungrow’s inverters with a 45MW/136.24MWh BESS for Thai renewable energy independent power producer (IPP) Super Energy. More recently, Sungrow supplied 6.9MWh BESS equipment to a project for the Electricity Generating Authority of Thailand, the country’s monopoly bulk power supplier.

“Currently, Thailand is catching the trend of solar PV-plus-BESS application and seeks more opportunities with technological innovations,” Sompong Dumrongongtragool, PEA deputy governor, said.

“Sungrow has been well-known for its consistent innovation and pioneering spirit. It also achieved significant renewable energy projects locally. We are glad to cooperate with Sungrow and jointly contribute to helping Thailand and other countries in southeastern Asia reach a net-zero carbon environment.”

Elsewhere in the Asia-Pacific region, in late October Sungrow announced 600MWh of new BESS contracts signed at the All-Energy Australia trade event in Melbourne, Australia, as the company launched its new liquid-cooled BESS solutions in the market. That included Solar River Project, South Australia’s largest DC-coupled solar-plus-storage project to date at 360MW/292MWh.

Energy-Storage.news’ publisher Solar Media will host the 1st Energy Storage Summit Asia, 11-12 July 2023 in Singapore. The event will help give clarity on this nascent, yet quickly growing market, bringing together a community of credible independent generators, policymakers, banks, funds, off-takers and technology providers. For more information, go to the website.

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UK’s Zenobē begins work on US$900 million Scotland battery storage portfolio

Zenobē said that the three sites will be “the first commercial contracts in the world to use transmission connected batteries to provide short-circuit level and inertia”. Image: Zenobē.

International EV fleet and battery storage specialist Zenobē has today announced that construction has begun on three battery storage projects at Blackhillock, Kilmarnock South and Eccles in Scotland, which will total £750 million (US$892 million) of investment.

The sites are set to be “the first commercial contracts in the world to use transmission connected batteries to provide short-circuit level and inertia,” according to the company because of their commitment to providing 4.4GVAs of inertia.

The three projects have also been contracted to provide stability to the National Grid Electricity System Operator (NGESO) and help improve the reliability of the UK’s renewable power system.

Phase one of the Blackhillock and Kilmarnock South projects will go live in the first and second half of 2024 respectively, totalling 400MW/800MWh. Eccles, which is due to go live at the beginning of 2026, will have a capacity of 400MW/800MWh.

Once fully operational, the three sites will be added to Zenobē’s portfolio in Scotland, which includes the 50MW/100MWh battery storage asset in Wishaw. According to Zenobē this will bring its total portfolio in Scotland to 1050MW/2100MWh.

Outside of Scotland, Zenobē has recently begun construction of a 24MWh battery storage asset in Swindon.

To read the full version of this story, visit Solar Power Portal.

Energy-Storage.news’ publisher Solar Media will host the 8th annual Energy Storage Summit EU in London, 22-23 February 2023. This year it is moving to a larger venue, bringing together Europe’s leading investors, policymakers, developers, utilities, energy buyers and service providers all in one place. Visit the official site for more info.

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BASF takes sodium-sulfur battery storage to South Korea after successful pilot project

NAS batteries paired with green hydrogen at Sangmyung Wind Farm, South Korea. Image: BASF New Business.

BASF will develop and market energy storage systems based on sodium-sulfur (NAS) batteries in South Korea in partnership with power-to-gas company G-Philos.

The European chemicals company’s subsidiary, BASF Stationary Energy Storage (BSES) announced last week the signing of a sales and marketing agreement for NAS batteries, for use in power-to-gas (P2G), power grid and microgrid applications.

The battery technology was first developed back in the mid-1980s and commercialised by Japanese company NGK Insulators. It has been used at more than 600MW and 4,000MWh across about 200 large-scale energy storage and microgrid projects worldwide.

The NAS battery operates at a temperature of about 300°C, can operate for about 15 years without experiencing cell degradation, even with 100% depth of discharge cycling every day. It is marketed as suitable for applications that require up to about 6-8 hours duration of storage.  

BASF and NGK entered a partnership in 2019, enabling the chemicals company to make its entry into the energy market with a “reliable, proven solution,” offering NGK access to its global sales channels.

In October 2021, as reported by Energy-Storage.news, BASF New Business, the arm which partnered with NGK, switched on a 950kW/5.8MWh NAS battery storage system at a BASF production facility in Antwerp, Belgium.  

BSES and NGK now co-develop the NAS technology, with BSES as distributor.

The agreement with South Korea’s G-Philos comes after the success of a project to combine NAS batteries with a green hydrogen electrolyser at Sangmyung Wind Farm in South Korea. G-Philos’ power conversion system (PCS) was used in the project, which was inaugurated in 2020.

G-Philos will now purchase an initial 12MWh of NAS batteries for use in projects, while the partners will look to develop a standardised energy storage system solution pre-packaged with G-Philos’ PCS. The Korean company can provide PCS for NAS battery products ranging from 250kW to 1MW.

“With the increasing use of renewable energies, NAS batteries will be one of the most important solutions for storing electricity from renewable sources and, in particular, for CO2-free hydrogen production,” G-Philos CEO Gawoo Park said.

The partners will target the renewable energy market in South Korea as well as the wider Asia region.

In related news, today NGK announced the establishment of a joint venture (JV) to work on virtual power plant (VPP) and digital electricity services technologies, resulting from a smart energy city pilot in Japan.  

NGK was is among participants in the project in Ena City, Gifu Prefecture, to create a local energy production and supply business combining rooftop solar PV with NAS batteries. The project was announced in April 2021 and got underway this year.

NGK will form its JV with one of the project’s other partners, electronics and imaging company Ricoh. At the Ena City project, Ricoh and NGK have worked together on a blockchain-based process tracker for supply, consumption and storage of energy.

The JV will look to combine NGK’s NAS batteries and ZNB5 zinc rechargeable batteries with Ricoh’s renewable energy distribution record platform, based on proprietary internet-of-things (IOT) and digital technologies. NGK will own 51% of the JV, and Ricoh 49%. Yet to be named, the JV will launch in February 2023.

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ReneSola Sells Three Community Solar Projects to Greenbacker

Mehul Mehta

Greenbacker Capital Management has purchased, through an affiliated investment vehicle, three to-be-constructed community solar projects in New York from ReneSola Power Holdings. Construction on the projects is slated to begin in early 2023, with commercial operation expected by the end of that year with a combined clean power–generation capacity of 8.7 MW DC.

Two of the projects are set to participate in the Solar For All program, a utility assistance program that helps income-eligible New Yorkers access clean energy while saving on their power bills. Each of the three projects is part of New York’s Value of Distributed Energy Resources (VDER) program, a net crediting system in which consumers can elect to receive a monetary credit toward their energy costs in an amount equal to the VDER generated by a community solar project.

“Equitable access to solar power is critical to a sustainable energy transition, and we’re delighted that Greenbacker’s third community solar collaboration with ReneSola will help provide that access – particularly in our own neck of the woods,” says Mehul Mehta, CIO of Greenbacker, which is based in New York. “We look forward to continuing our successful track record and bringing more new solar power to the grid together.”

“We are pleased to once again partner with Greenbacker on this portfolio of community solar projects in New York,” states John Ewen, CEO of ReneSola North America. “ReneSola shares Greenbacker’s commitment to equitable access to solar power and continues to pursue opportunities to bring solar electricity to a larger demographic.”

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Altus Picks Up 88 MW Solar Asset Portfolio from DESRI

Gregg Felton

Altus Power Inc. has closed on the acquisition of approximately 88 MW of operating solar assets. These assets were purchased from D. E. Shaw Renewable Investments (DESRI), under definitive agreements that were previously announced on September 27, 2022.

“We were pleased to be able to partner with DESRI’s talented team to execute this transaction,” says Gregg Felton, Co-CEO of Altus Power. “With closing now complete, we’re excited to incorporate these new long-term assets and customer relationships into our portfolio.”

“We were impressed by the Altus Power team’s ability to transact with efficiency, notwithstanding the complexity of a portfolio spanning several states with multiple stakeholders,” comments Bryan Martin, executive chairman of DESRI. “We expect that Altus Power will continue to operate these projects with the same thought and care that DESRI has.”

These commercial and industrial scale assets include rooftop, ground and carport-mounted solar arrays which deliver clean electricity under long-term contracts to predominantly investment-grade customers.

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US government launches US$350 million long-duration energy storage demonstration funding

US Secretary of Energy Jennifer Granholm visits zinc hybrid cathode battery storage manufacturer Eos Energy Enterprises. Image: Eos via Twitter.

Long-duration energy storage (LDES) projects in the US will be able to compete for a share of “nearly US$350 million” of government funding.

The funding, unlocked by the passing of the Bipartisan Infrastructure Law in late 2021, will be administered by the US$20 billion US Department of Energy (DOE) Office of Clean Energy Demonstrations, which was opened as part of the landmark legislation.

The DOE announced yesterday that energy storage technologies offering between 10 and 24-hours storage duration will be eligible for a slice of the US$349 million total. Up to 11 demonstration projects will be selected that have the potential to move the needle towards the Department’s long-term goal of reducing the cost of LDES by 90%.

Up to 50% of the cost of each project will be paid out, with letters of intent due by 15 December and full applications due in by 3 March 2023.

“Advancing energy storage technologies is key to making energy generated from clean renewable resources—like wind and solar—available for 24/7 use, and is critical to achieving a decarbonised power grid and reaching President Biden’s ambitious climate goals,” US Secretary of Energy Jennifer Granholm said.

“DOE is taking huge steps to lower the cost and increase the duration of energy storage technologies so that clean, reliable, affordable electricity is available whenever and wherever to everyone, especially Americans living in remote and underserved communities.”

More information can be found on the Department of Energy’s funding opportunities portal here.

Long-term goals on long-duration energy storage

As the penetration of renewable energy on the US grid grows, so too does the need for energy storage to balance out peaks and troughs in demand and production. The duration requirement of that storage also grows at higher percentages of renewables.

Lithium-ion batteries commonly used for grid storage are typically considered more cost-effective for durations of up to 4 hours. Although some recent projects announced will see 6- and even 8-hour lithium-ion systems deployed, the energy industry seeks viable alternatives for technologies that can offer scalable long-duration storage for several hours, overnight use, or in some cases even longer.

The state of California recently just paid out US$31 million funding for a hybrid microgrid using vanadium redox flow battery and zinc hybrid cathode battery technology, which is the first project to get funded from a US$380 million pot.

It has been a strategic aim of the US government to reduce the cost of long-duration storage even during the term of Donald Trump as president, with the Energy Storage Grand Challenge competitive funding opportunity launched during his tenure.

However, as with other clean energy efforts, long-duration energy storage market seeding activity has stepped up since Joe Biden took office, with the DOE funding a new US$75 million centre for LDES research at Pacific Northwest National Laboratory (PNNL).    

The Bipartisan Infrastructure Law, aka the Infrastructure Investment and Jobs Act, was a sort of companion piece to the more recently passed Inflation Reduction Act (IRA).

Biden described the pair as the greatest steps taken to fight climate change in US history, with the IRA offering incentives for downstream deployment of solar PV, wind and batteries, and the Bipartisan Infrastructure Law offering incentives and stimulus to the upstream, supply side of the clean energy sector.

Other Bipartisan Infrastructure Law initiatives underway include a US$335 million programme to support battery recycling and US$675 million funding for critical minerals R&D. A total of about US$7 billion support for domestic electric vehicle (EV) and stationary energy storage battery value chains will be paid out through the law.

Energy-Storage.news’ publisher Solar Media will host the 5th Energy Storage Summit USA, 28-29 March 2023 in Austin, Texas. Featuring a packed programme of panels, presentations and fireside chats from industry leaders focusing on accelerating the market for energy storage across the country. For more information, go to the website.

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