Zinc battery storage player Eos claims ’18 month pathway’ to positive margins

Eos battery storage equipment at Duke Energy’s test facility. Image: Duke Energy.

Eos Energy Enterprises has offered 2022 revenue guidance of US$50 million and the zinc battery storage company’s leadership has claimed gross positive margins can be achieved in a year and a half. 

The company reported its Q4 2021 financial results on Friday. It narrowly missed a US$5 million full-year 2021 revenue target, netting US$4.6 million but noted that this represented a big jump on US$0.2 million recorded for 2020.

A large portion of those revenues were recorded in the fourth quarter, US$3.1 million across eight customer projects. Again this represented a big jump from US$0.7 million in the previous quarter. It received US$51.3 million in orders in Q4 2021. 

Eos claimed its pipeline of potential orders is at US$4.1 billion, with CEO Joe Mastrangelo estimating a “hit rate” of about 30% from pipeline to booked order. 

Full-year bookings for 2021 were confirmed as US$137.4 million. This figure had already been reported in November’s Q3 results — a possible extra US$150+ million of orders referred to at the time have not yet materialised but the company has said that it expects to secure US$400 million of orders from its pipeline during 2022. 

“…you’re really starting to see the company now transitioning from an R&D company into a full-fledged operating company,” CEO Joe Mastrangelo said in a conference call to explain results. 

Energy-Storage.news reported last week that Eos has solidified plans to expand manufacturing capacity from its facility in Turtle Creek near Pittsburgh to 800MWh of annual output for the Znyth aqueous zinc batteries it makes. 

As with other energy storage companies that have gained stock exchange listings through special purpose acquisition companies (SPACs), Eos faces challenges in establishing itself as a profitable entity.

Recent financial results from iron flow battery company ESS Inc and smart distributed battery energy storage company Stem Inc illustrate this point — albeit all three companies have been upfront from prior to their SPAC mergers that profitability is a long-term goal.  

Eos chief financial officer Randall Gonzales said in the call that while the company’s cost reduction goals were internal and would not be revealed publicly, it has modelled a path to gross positive margin which it could execute within 18 months. 

In the running for DOE loan

The company has been invited to apply for a US government loan from the Department of Energy’s Loan Program Office, headed up by noted clean energy entrepreneur and investor Jigar Shah. The invite comes after Eos’ Znyth battery passed an initial stage of proving its ability to contribute to decarbonisation through use of an innovative technology. 

Eos is set to compete for a pot of US$3 billion in loans available in the DOE Renewable Energy and Efficient Energy Loan Program tranche. CEO Mastrangelo said in a statement that another advantage of the company’s technology is that it largely uses abundant materials sourced domestically. 

“Eos has invested in a domestic supply chain where 80% of our raw materials are within a five-hour drive of our factory––and our goal is to be above 90% by the end of 2022,” he said.

Reducing reliance on international suppliers also reduced uncertainty of delivery, the CEO said in the conference call.

He offered a musical analogy for the supply chain: “…you want these things to be like marching bands where they’re just going down, and they know the choreography, and they deliver what you need. The way the supply chain, the analogy I say is like supply chains become like jazz, where everybody’s kind of doing their own thing, and you want to put it all together and make it sound good.”

While the DOE loan would give Eos the financial ability to scale up production significantly, CFO Gonzales said in response to an analyst’s question that the company’s business model with regards to manufacturing is “very agile and flexible”. 

“The business model from a manufacturing capacity perspective is not ‘build it and they will come’. We have the backlog and we’re expanding the [production] capacity in association with the backlog,” Gonzales said.

While Mastrangelo noted that Eos is going after the mid to long-duration energy storage market and that the short-duration space will largely be dominated by lithium-ion, the zinc battery technology could scale faster and more cost-effectively.

Investment in the Turtle Creek facility equates to US$50 million per gigawatt-hour of annual manufacturing capacity, Mastrangelo claimed, 60% less than the cost “if you were doing a comparable lithium-ion facility”. This is based on a full-year projection that between US$25 million and US$35 million investment will be required to create its 800MWh of production capacity. 

Due to high costs and expenses of nearly US$140 million, Eos recorded a net loss of US$124,216,000 for 2021, but held more than US$105 million in cash, cash equivalents and restricted cash at the end of the year.

The company’s ongoing challenge is to scale up revenues and scale down costs to attain gross positive margins within that 18 month timeline. It has logged some high profile customer orders in the past few months: its systems have surpassed 400MWh of operation in testing and the field, a letter of intent (LOI) has been signed for a possible 240MWh project in Texas’ ERCOT market, Mastrangelo pointed out. 

Meanwhile the Turtle Creek facility has received ISO 9001 quality management certification and Eos recently signed a multi-year supply deal for the high purity zinc-bromide used in Znyth’s electrolyte with chemicals company TETRA. 

Conference call transcript by Seeking Alpha.

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Orbital, Jingoli Pick Up EPC Contract for Alabama Solar Project for Lightsource bp

Another Orbital Solar Services project, a 22 MW solar farm in Murfreesboro, N.C.

Orbital Energy Group Inc.’s wholly-owned subsidiary, Orbital Solar Services (OSS), and its joint venture partner, Jingoli Power LLC (jointly: OSS JPOW LLC), have signed a formal engineering, procurement, and construction (EPC) contract and begun construction on a 130 MW DC/100 MW AC solar farm in Alabama for Lightsource bp.

“OSS/JPOW is honored to have formally begun construction on the Black Bear Project and to start this very special relationship with the Lightsource bp team,” states Michael Janda, OSS’s president. “We believe this project will solidify our mutual goals moving forward and will allow this relationship to grow over time. The satisfaction of our customer remains one of OSS’s top priorities and we are honored to showcase our talent and professionalism on the Black Bear Project. We look forward to seeing this collaboration evolve with Black Bear being the first of many projects with Lightsource bp.”

The contract calls for OSS JPOW LLC to design, engineer and build a utility scale solar array to be delivered in late 2022. Under the contract terms, OSS will provide full utility scale EPC services, including substation construction. The project will consist of 350,000 solar panels installed across 800 acres of land.

“We are excited by the start of this project, showcasing Orbital’s ability to provide services that contribute to reducing our nation’s carbon footprint,” says Jim O’Neil, Orbital Energy Group’s vice chairman and CEO. “This project and others like it serve to expand OSS’s industry relationships based on a solid record of achievement, and the expertise to provide end-to-end solutions. By expanding relationships, as we have with Lightsource bp, we are positioning OEG/OSS to increase their presence in the renewable and alternative energy marketplace throughout 2022 and beyond. In addition, our partnership with industry leading Jingoli Power expands both our bonding capacity and the service portfolio we can provide to our customers.”

“This project is early proof that Jingoli Power’s joint venture with Orbital is well positioned to meet the growing demand for reliable, competitively priced solar generation,” adds Karl Miller, Jingoli Power’s CEO. “I’m especially thrilled that one of our initial joint projects is for Lightsource BP, given our shared track record of safety and excellence in execution.”

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Northvolt buys site for 100GWh cathode materials gigafactory in Sweden

The Kvarnsveden Mill and surrounding industrial area in Borlänge, Sweden. Image: Northvolt.

Lithium-ion battery startup Northvolt has agreed to acquire a former paper mill site in Sweden where it will develop its planned gigafactory, capable of producing 100GWh of cathode materials from late 2024. 

Northvolt will purchase the Kvarnsveden pulp and paper mill and surrounding industrial area in Borlange, which closed in 2021, from Stora Enso and turn it into a manufacturing plant for active material and battery cells. 

The gigafactory is expected to start operations in late 2024 and at full output will be able to produce 100GWh of cathode material annually. The facility’s production volume will contribute to all markets that Northvolt is delivering to including its battery energy storage systems (BESS) arm Northvolt Systems’ assembly plant. 

Northvolt claims it has US$50 billion worth of orders already – US$14 billion from Volkswagen alone – and aims for 150GWh of annual cell production capacity by 2030. The site in Borlange will employ 1,000 people and use 100% renewable power, the company says. 

Peter Carlsson, Co-Founder and CEO of Northvolt, said: “Since Northvolt’s founding, we have focused on circular battery production, but this is the first time we will reuse an entire production site. With its access to energy, industrial water and the broad production know-how in the region, Kvarnsveden is an optimal site for a gigafactory.”

The company, which has raised US$6.5 billion in enquiry financing to-date, produced its first lithium-ion cells at the turn of the year. It also announced a partnership with one of the battery energy storage sector’s largest system integrators Fluence to develop grid storage technology.

It has previously said it wants to manufacture the world’s most sustainable batteries through using renewable but also securing 50% of raw materials from recycled batteries. The company’s strategic approach to the full production value chain was praised by Fluence executive Julian Jansen at Solar Media’s Energy Storage Summit 2022 this week.

European Commission and Norwegian government step up funding for European battery value chain

Northvolt’s announcement coincides with a letter-of-intent between a European Commission body and EIT InnoEnergy to provide €10 million (US$11.26 million) in funding for the European Battery Alliance (EBA) Academy.

The Academy is a programme designed to reskill and upskill Europe’s workforce across the continent’s battery value chain to, in the announcement’s words, “stay ahead of the e-mobility curve.” It adds that 800,000 workers will need to be trained, upskilled or reskilled by 2025 to meet demand for jobs at projects in the pipeline like Northvolt’s.

EIT InnoEnergy is part of the European Institute of Innovation and Technology (EIT). It is one of Northvolt’s investors and has also funded or partnered with other players in the lithium-ion battery space including Vulcan and ElevenEs. Energy-storage.news has interviewed its industrial strategy executive Bo Normark.

Commission Vice-President Maroš Šefčovič, in charge of the European Battery Alliance, commented: “In 2017, the EU battery industry was hardly on the map. Today, Europe is a global battery hotspot, with 20 Gigafactories emerging across our Member States. By 2030, we should be manufacturing enough batteries each year to power some 11 million electric cars, moving full steam ahead towards strategic autonomy in this crucial sector.”

Alluding to recent moves by the EU to ensure higher recycled content in batteries in the continent’s market, he added: “It is also high time to adopt a new regulatory framework, ensuring that only the greenest, best performing and safest batteries make it onto the EU market.” 

The government of Norway, which is part of the European Economic Area (EEA) but not the EU, also recently announced funding for a project aimed at building more sustainable batteries.

Last week, it provided a NOK100 million (US$11.3 million) grant to the ‘Sustainable Materials for the Battery Value Chain’ project. The project partners include battery startups FREYR and Morrow who received NOK39 million and NOK25 million respectively. They are joined by silicones/metals producers Elkem and Norsk Hydro and marine energy storage solution provider Corvus.

The project will cover activities throughout the entire battery value chain, from the production of active battery materials to cell production, modelling of battery degradation, safety and recycling.

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Ahead of Construction, Canadian Solar Signs PPA with Brazilian Steelmaker

One of Canadian Solar’s projects, the Oakley Solar Plant in Australia

Canadian Solar Inc.’s Global Energy business group has signed private power purchase agreements (PPA) with Usinas Siderurgicas de Minas Gerais S.A. (Usiminas), one of the largest steelmakers in Latin America, committing 50% of the total electricity production of a 381 MWp solar power project in Brazil.

For this PPA, Canadian Solar will develop and build the 381 MWp Morada do Sol project in the State of Goiás. Construction is expected to start in the first quarter of 2024 and the project is expected to reach commercial operation by January 2025. This is the first corporate PPA signed directly with an industrial customer under the Brazilian self-production framework.

The Morada do Sol project will use Canadian Solar’s high efficiency bifacial BiHiKu modules. Once in operation, the project is expected to generate approximately 790 GWh of clean energy annually.

“While we are working towards our own ESG goals, we are also proud to partner with Usiminas in a tailored solution in the Morada do Sol project to achieve their energy cost reduction and ESG goals,” comments Dr. Shawn Qu, chairman and CEO of Canadian Solar. “This transaction also contributes to enhance our footprint and leading position in the Brazilian market, and demonstrates our capability to continue delivering sustainable, competitive, and innovative solutions to our customers in a country where we have cumulatively developed over 4.1 GWp of projects.”

“This year, as Usiminas celebrates its 60th anniversary, the company is looking to the future and is committed to ensure the sustainability of its operations. Initiatives such as the partnership with Canadian Solar for the supply of solar energy to power our operations are important steps in its journey to be increasingly aligned with the principles of the ESG agenda,” adds Sergio Leite de Andrade, CEO of Usiminas.

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ESS Inc posts US$500 million full-year loss; yet to recognise revenue

A render of ESS Inc’s Energy Center product. Image: ESS Inc.

Iron flow battery provider ESS Inc has revealed a US$477 million net loss in 2021, in its first full-year results since becoming a publicly-traded company on the New York Stock Exchange (NYSE). 

The bulk (87%) of this was from losses on the revaluation of warrant, derivative and earnout liabilities, which relate to the listing through a SPAC merger in October. Operating losses were the remaining US$60.9 million and it ended the year with assets of US$250 million of which 95% is cash.

ESS Inc designs, builds and deploys iron flow batteries for long-duration commercial and utility-scale storage requiring 4-12 hours of duration. It claims unlimited cycles with no capacity loss, versus Li-ion’s average of 6,000.

Its Energy Warehouse for commercial and industrial (C&I) customers is a behind-the-meter unit with a capacity of 400KWh. Its 3MW Energy Center for utility-scale applications, pictured above, packs 6MW/74MWh per acre footprint.

Path to near-term revenue

In a results webcast, CFO Amir Moftakhar said that that it shipped five of its utility-scale Energy Warehouse commercial units in the latter part of 2021. However, it had not recognised revenue on any of them for the quarter because customer acceptance had not yet occurred.

CEO Eric Dresselhuys said the company was making “…progress securing new contracts, delivering to customer projects, and ramping up our operations. We have now achieved full customer acceptance at one of the projects where we have installed our Energy Warehouses.” This indicates it will definitely have recognised revenue during the current quarter (Q1 2022).

He added that it expected to ship 40-50 Energy Warehouses in 2022, all of which were contracted. ESS is not guiding on Energy Center orders but said it expects to start shipping those this year.

It began trading on the NYSE after a merger with ACON S2 Acquisition Corp in October, as reported by Energy-storage.news. Its shares sit at US$4.50 with a market cap of US$650 million at the time of writing.

Long-term pipeline and growth goals

After it listed the company ambitiously claimed an US$8 billion pipeline of opportunities for its products. Two notable customers are investor-owned utilities San Diego Gas & Electric (SDG&E) and Portland General Electric (PGE). Both have ordered 3MWh of stored energy capacity which should come online in Q1 and mid-2022, respectively.

ESS also has an 8.5MWh order from Enel Green Power España and a framework agreement with SB Energy for up to 2GWh of flow batteries by 2026.  

The company has also announced ambitious growth forecasts. In a presentation in October, it projected US$37 million revenue in 2021, followed by five years of 150% average CAGR to reach US$3.5 billion in 2027. It expects the vast majority of revenue over the period to be from sales of Energy Centers.

The company is a major player in the long-duration energy storage space which was a hot topic of discussion at Solar Media’s Energy Storage Summit 2022 held in London this week.

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Stem Inc offers 2022 guidance up to US$425m but missed 2021 target

Stem offers a combination of its own and third party hardware along with its Athena software platform. Image: Stem Inc / CleanCapital.

Stem Inc saw a 251% increase in revenues for 2021 compared to the previous year and has offered full-year 2022 revenue guidance of between US$350 million and US$425 million. 

The California-headquartered ‘smart energy storage’ provider which mostly equips commercial and industrial (C&I) customers with lithium-ion battery storage, optimised and controlled by its proprietary software platform, Athena, has just reported its fourth quarter and full-year financial results for 2021. 

The company said Q4 2021 was a record quarter, taking in US$216.9 million in bookings, a 400% increase from the same period in 2020 (US$34 million), while revenues for the three month period stood at US$52.8 million, again a record quarterly figure and a 184% increase on US$18.6 million revenues in Q4 2020. 

Along with the financial results disclosure yesterday Stem Inc said the Athena software had been selected for onboarding to up to 1GW/2GWh of energy storage in Texas’ ERCOT market by developer Available Power.

The platform will be used to optimise a total of 100 front-of-the-meter (FTM) sites at industrial and commercial microgrid and distributed energy resources (DER) systems over 20-year contracts. The deal could be worth more than US$500 million by the time deployments are completed. 

The first 20 sites will be equipped with the Athena artificial intelligence (AI)-driven platform early next year and the software’s bidding platform will control the energy storage systems’ participation in wholesale market and energy trading opportunities. Stem Inc will also provide the developer with revenue modelling, consulting on battery hardware and support with project development. 

Causes of delays ‘expected to resolve over time’

Stem Inc publicly listed on the New York Stock Exchange (NYSE) in April 2021 through a special purpose acquisition company (SPAC) merger. At the time, company leadership laid out that the path to profitability was likely to take at least a couple of years to traverse. 

Since the listing it has reported consistent increases in revenues, but also losses in each quarter. The company missed its 2021 revenue guidance of US$147 million, instead bringing in US$127.4 million for the full year. It still represented a 251% increase from 2020 full-year revenues of US$36.3 million. 

Net loss for 2020 had been US$156.1 million, while in 2021 these were US$101.2 million. However adjusted EBITDA had been -US$30.3 million last year versus -US$25.4 million the year before. 

Nonetheless the company has reported a backlog of US$449 million contracted at the end of 2021, which compares very favourably with US$184 million by year-end 2020, it holds 1.6GWh of assets under management and ended 2021 with US$921 million in cash, equivalents and short-term investments.

As with many other companies in the clean energy industries, Stem Inc had seen a negative impact to its fourth quarter revenues from delays in interconnection, permitting and supply chain issues, but company CEO John Carrington said that “demand remains robust and we expect these issues to resolve over time”.

The company said its supply chain is secured into Q4 2022 and expects to be able to secure full year capacity by the end of this quarter. It expects the continuing semiconductor shortage will not impact its supply, while the trend for system manufacturers to diversify their battery cell supplier base 

Stem Inc claims it is on course to execute on more than US$1 billion worth of bookings in the 18 months between July 2021 and the end of 2022, and that its pipeline of opportunities stands at US$4 billion of potential orders. 

Recent activities by Stem Inc reported on Energy-Storage.news include a deal with developer NineDot to enable market participation of 110MWh of BESS in New York’s Value of Distributed Energy Resources (VDER) programme and Stem’s acquisition of US solar asset management software company AlsoEnergy. 

The company also launched an EV charging optimisation solution in August last year and has been bullish on the opportunities ahead in that space, signing a recent deal to collaborate on charging solutions with ENGIE. 

Stem’s shares listed at around US$25 per share at the end of April 2021, but had fallen to US$11.24 by close of trading on 24 February after reaching a US$37 high in July.

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Capacity Market contracts awarded to more than 2GW of battery storage in UK and Italy

Rendering of InterGen’s Gateway 320MW/640MWh project, one of the awardees of a 15-year contract in the T-4. Image: InterGen.

The award of contracts to 1GW of battery storage was the “biggest news” to emerge from the latest round of Capacity Market auctions held in the UK, according to energy consultancy EnAppSys.

Energy-Storage.news’ sister site Current± reported the full results earlier this week of the UK’s T-4 Capacity Market auction, awarding contracts beginning in the 2025/2026 window. It cleared at a record high price of £30.59 (US$41.03)/kW/year, due largely to the decommissioning of old assets and higher capacity needs. 

While gas plants were the biggest winners, awarded 27,632MW of contracts from the 42,364MW total, interconnectors got just under 7GW and pumped hydro storage 2.5GW, it was the 1,093MW of battery storage contracts which should be paid closest attention, EnAppSys director Paul Verrill said. 

“Battery project winners are the biggest news in this auction, with many new-build battery projects having chosen the year with the highest ever clearing price for a T-4 auction to come online,” Verrill said. 

“This is a major boost in particular for those units that were able to secure long-term contracts.”

Around 8.3GW of battery storage registered to participate, although due to de-rating rules, this was equivalent to more like 2.3GW. EnAppSys’ director said de-rating meant battery assets will only see about 30% of the CM payment price. 

Awarded contract lengths range from 1 to 15 years. Another industry expert, Chris Matson, partner at energy system analysis and modelling group LCP said that the planned decommissioning of five nuclear plants and the retirement of coal off the system entirely by 2025 left a gap in supply which new-build resources could fill at higher capacity prices.

‘Watershed moment’

Matson called the results a “watershed moment” as the clearing price smashed a previous record of £22.50/kw/yr. With battery storage making up the majority of new capacity awarded 15-year contracts (3.3GW in total, or 1.0GW de-rated for duration) the auction is representative of the energy grid’s transition, he said. 

Aurora Energy Research, another industry expert group, said the contracted amount for battery storage was up by around 800MW from last year’s T-4. More than 60% of the new awards to battery storage were for two-hour duration resources. 

Among the developers celebrating 15-year contract wins were the UK arm of Singapore-headquartered Sembcorp, and Intergen, a domestic player and relative new entrant to the space better known to date for legacy thermal power plant technologies and wind power.

Sembcorp won for 150MW of two-hour duration battery storage (300MWh), expected to be operational by 2023 and part of a planned 360MW battery energy storage system (BESS) project, which will be alongside another 120MWh in the company’s total UK BESS portfolio. 

Meanwhile, InterGen’s contract was for the UK’s largest planned battery storage project so far, the 360MW/640MWh Gateway project near London in southern England. InterGen said the CM contract “will cement the development of the project,” which will cost around £200 million and is set to begin construction next year. 

Energy storage technology company Fluence has been revealed as BESS technology provider for the project, which InterGen said could be later expanded to 450MW/900MWh. The developer also has a number of other sites in development, it said, including a potential 550MW/1,100MWh plant in Lincolnshire, northern England. 

“We are delighted with the result of the Capacity Market auction, which represents a big step forward for our Gateway storage project and for the country’s net zero target,” Jim Lighfoot, InterGen CEO said.

“Our mission is to deliver the flexible electricity solutions that everyone can rely on in a low carbon world and battery storage helps us do this.”

The T-4 auction’s awarded capacity came in at just under the 43.6GW of targeted capacity. The contract awards came in at a total cost of £1.3 billion. 

Result follows award of 385MW in T-1 year ahead auction

Earlier this month, the UK’s T-1 CM auction — a year-ahead auction which guarantees capacity for delivery during stress events from 2022-2023 — saw a total 4,996.224MW of de-rated capacity awarded across 226 Capacity Market Units (CMUs).

They cleared at the maximum price of £75/kW/yr, the highest price ever seen in the UK’s Capacity Market and included 385MW of battery storage and 85MW from pumped hydro. 

In a webinar hosted by Current± this week on the impact of the ongoing energy crisis on Capacity Market dynamics, EnAppSys’ Paul Verill said that the crisis’ supply crunch is contributing to record prices, but in turn the CM’s design could be argued to be exacerbating tight capacity margins. 

1.1GW of battery storage wins Italy contracts

In Italy this week, grid operator Terna awarded 34.1GW of capacity market contracts to existing assets, 3.8GW to new assets and 3.6GW to so-called ‘virtual assets’. Awards to new-build energy storage facilities made up 1.1GW of that new-build capacity, with 300MW already authorised plants which cleared at a price of €70 (US$78.47)/MW/yr and 800MW of unauthorised plants cleared at lower tariffs. 500MW of that energy storage will be on the southern island of Sardinia. 

Additional reporting for Energy-Storage.news by Andy Colthorpe.

The UK portions of this story originally appeared as separate items covering the UK Capacity Market on Current±.

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‘No competition’ between short and long-duration energy storage in effort to meet deployment needs

There should be an ‘all of the above’ approach to energy storage deployment, the panellists said. Image: Invinity Energy Systems via Twitter.

Although different energy storage technologies are often thought of as in competition with each other, it’s a case of all-hands-on-deck if we are to achieve deployment targets.

Speakers on Energy Storage Summit 2022’s ‘Increasing Capacities and Generation’ panel unanimously agreed with that premise, at the event hosted in London this week by our publisher Solar Media.

Katherine Vinnicombe, head of business development at UK grid-scale energy storage developer Eelpower, said: “There is a consensus forming that we need another 40GW of storage by 2035 in the UK which is really significant. That will be divided 50:50 between short-term needs like frequency response etc while the other half is needed to target long-term solutions. 

“The big question is, what do we need to do in the market today to stimulate those solutions, which have quite different business cases to what we see in the market today?” 

Ed Porter, business development director at vanadium flow battery company Invinity Energy Systems, added: “There is not a conflict between different storage durations. The amount of storage we need means we need everyone in the space to deliver on all of their plans.” 

Vinnicombe, vehemently agreeing with this, added that the real bottleneck in the UK system is grid connections.

“We have a xGW pipeline but when you drill down to which ones have grid connection and planning consent is something like 10%. We need a collaboration between policymakers and other stakeholders to reach those gigawatt requirements,” she said. 

Staying on the topic of long ‘versus’ short duration, Peter Oldacre, VP global business development at Cellcube, another vanadium flow battery player, said that everything he is hearing from the investment community indicates lithium-ion battery prices will increase in future, not decrease as many are predicting. 

Separately, Jaime Vega, Managing Director at E22 Energy Storage Solutions — a provider of vanadium flow and lithium-ion storage solutions and part of the Gransolar Group — said that scale would allow long-duration to reduce its prices to be closer to short-duration batteries. 

At points the discussion moved onto more big-picture thinking around what long battery storage could potentially do, including capex deferral for transmission networks, which was mentioned by Oldacre. 

Porter highlighted a recent report by energy market analytics group Aurora Energy Research which said that long-duration energy storage could save 2.5% of the costs of managing the B6 boundary, which separates the transmission network at the SP Transmission and National Grid Transmission interface running roughly along the border between Scotland and England.

Aurora has modelled a wider system need for up to 24GW of long-duration storage in the UK if the country is to achieve net zero emissions by 2035.

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A lack of historical data still a challenge for lenders in the energy storage space

Contracted revenues can minimise lenders’ exposure to merchant risk, the audience heard. Image: Solar Media Events via Twitter.

A number of core challenges remain for lenders in the energy storage market, not least the relative nascency of it.

Speaking at the ‘Lenders’ Approach to Energy Storage‘ panel at the Energy Storage Summit 2022, Mark Cumbo director of renewables at Santander said when educating internally there was little real-life historic data available.

“I think a big challenge that we faced  in just educating internally is just a lack of historic revenue. We talked to the market advisors about can you do a back-casting and, and how would have actually performed in the last three or four years, and they do that but it’s not real world, it’s not real life,” Cumbo said at the event hosted in London this week by our publisher Solar Media.

A lack of historical data can also hamper the understanding of the lifecycle of a project, and impacting on the understanding of the asset value as well as the revenue streams.

“The useful life of projects, degradation and how batteries are developing and how we’re running longer hours, some lenders get a bit uncomfortable [with that], because we don’t have that historic data to prove where we are in the cycle,” said Jemma Couchman, partner at independent merchant bank Cameron Barney.

“And the different providers can provide forecasts and curves, but we’re still very early on, we don’t actually know and therefore, some people do get quite uncomfortable with that.”

Fundamentally the more certainty a developer can provide to a lender is key to securing financing, this includes a number of key parts including minimising merchant risk by securing a contracted revenue.

“The easier you can make it, the more attractive you’ll be. So bring me a floor if you can,” said Cumbo.

Beyond this there are other ways to increase security for lenders, said Jacob Lloyd, director at UK bank Natwest.

“Relevant experience across all sectors in space, there’s loads of impacting parts here. It’s making sure you have the right developers EPC contracts, the right battery supplier, the right optimiser,” he said.

The session closed with a consensus from that panel that lenders much be viewed as partners in the development of storage projects.

“Keep in mind that the lenders aren’t your enemy. They are on your side. We will have to work together to get it,” said Couchman.

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Eni New Energy US Purchases Corazon I and Guajillo in Texas from BayWa r.e.

BayWa r.e. has completed the sale of the 266 MW DC (200 MW AC) Corazon I Solar plant and the 200 MW (400 MWh) Guajillo storage project to Eni New Energy US Inc. Located in Webb County, Texas, the Corazon I Solar plant began operations in August 2021, while the Guajillo storage project is expected to reach an operational stage before the end of 2023.

“We’re pleased to complete the sale of Corazon I and Guajillo assets to Eni New Energy US, a company that is well positioned to build upon the progress we have made and deliver clean, reliable energy to Texas,” says Fred Robinson, CEO of BayWa r.e. Solar Projects LLC. “We are also excited to partner with Eni to manage the plant operations of Corazon through our services business, BayWa r.e. Operations Services, LLC.”

“As we focus on our core strategies to grow our footprint in the U.S. market, this deal allows BayWa r.e. to reinvest capital in the company’s development pipeline across the country, including projects in ERCOT,” adds Robinson. “We’re excited to r.e.think energy and deliver progressive solutions into a rapidly growing market that will continue to thrive as we see the increasing implementation of utility-scale solar together with storage.”

BayWa r.e. acquired Corazon I as an early-stage project in 2019 and the project reached commercial operation in August of 2021. The company worked with the North American Development Bank, along with a syndicate of three other lenders, to sign a credit agreement for up to $216.1 million to finance the design, construction and operation of the Corazon I project.

BayWa r.e. partnered with local agencies on permitting and establishing a tax structure that will provide more than $30 million in tax revenue over the 35-year project life to support the local community. The electricity and renewable energy credits generated are being sold to a retail energy provider through a long-term power purchase agreement and in the wholesale electricity market.

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