1. CIBC
CIBC was left lead arranger on the $482 million debt facility for Arevon's 1,200 MWh Nighthawk project, according to Mercom (2026). It also co-structured Aypa Power's $1.5 billion construction warehouse revolver.
Top 10 BESS Project Finance Lenders (2026)
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Ten Banks Leading Battery Storage Project Finance in 2026
The top 10 BESS project finance lenders in 2026 are CIBC, MUFG, NORD/LB, Société Générale, Santander, Natixis CIB, ING Capital, KeyBanc, Lloyds and NatWest. They lead most construction-to-term loans, tax credit bridges and letter of credit facilities behind utility-scale battery storage.
Volume keeps rising. Modo Energy tracked 17 US BESS deals in Q1 2026, with disclosed debt above $2.9 billion. Below is what each lender funds and which projects suit it.
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The 10 lenders
2. MUFG
MUFG sat in the lender group on Sunraycer's $901 million solar-plus-storage financing in May 2026, reported by Energy-Storage.news. It is a strong fit for hybrid portfolios needing tax credit bridges.
3. NORD/LB
NORD/LB held every agency role on a $60 million Colorado utility-contracted battery in July 2026, per Dealroom. It also co-led Flatiron's roughly $850 million Energizar financing. It takes mid-size tickets well.
4. Société Générale
Société Générale led the $398 million financing for Aypa's 1,000 MWh Arizona project, according to Energy-Storage.news. It suits large single-asset construction loans with green loan labelling.
5. Santander
Santander lends on both sides of the Atlantic. In May 2026 it signed export credit-backed facilities funding up to 50% of equipment costs for Gresham House Energy Storage Fund, as reported by Alliance News.
6. Natixis CIB
Natixis provided $431 million for NineDot's 28 distributed batteries in New York City. The package combined a construction-to-term loan, a tax credit transfer bridge and an LC facility, per Energy-Storage.news.
7. ING Capital
ING was a coordinating lead arranger on Jupiter Power's $500 million green revolver and LC facility in January 2026. It also co-led Aypa's Arizona deal. It is a good fit for developer-level corporate facilities.
8. KeyBanc
KeyBanc was a joint coordinating lead arranger on Swift Current's $242 million Prospect project in PJM, according to Energy-Storage.news. It is active in ERCOT and PJM mid-market deals.
9. Lloyds
Lloyds was sole structuring bank on up to £300 million for Statera's 600 MWh Thurrock battery, reported by Solar Power Portal. It is a leading lender for large GB merchant assets.
10. NatWest
NatWest structured Zenobē's £235 million Scottish grid battery facility as sole debt advisor and co-funded Quinbrook's Cleve Hill solar and storage loan. It suits sponsors pairing BESS with capacity market contracts.
What lenders underwrite
Revenue certainty sets leverage. Tolling and resource adequacy contracts earn the highest debt sizing. Merchant assets need a revenue floor, conservative degradation cases and a reputable optimiser.
Technology risk is tested hard. Lenders review the cell supplier, warranties, augmentation plan and the EPC wrap before credit committee.
Financely builds that file. The Lender-Ready Package includes the credit memo, model review and debt sizing, plus a live lender appetite map. For full mandates, see our energy project finance advisory and credit enhancement for renewables.
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Frequently asked questions
Which banks finance battery storage projects?
The most active arrangers in 2026 include CIBC, MUFG, NORD/LB, Société Générale, Santander, Natixis, ING, KeyBanc, Lloyds and NatWest.
Can a merchant BESS project get non-recourse debt?
Yes, but leverage is lower. Lenders typically want a revenue floor, a tolling agreement or capacity market income to size the debt.
What facilities make up a typical BESS financing?
Most packages combine a construction-to-term loan, a tax credit or tax equity bridge, and a letter of credit facility for interconnection and offtake security.
This article is general information only and is not legal, tax or investment advice. Financely is an advisory and arranging firm, not a lender or broker-dealer. Any financing is subject to lender underwriting, due diligence, credit approval, documentation and conditions precedent, and no outcome or timeline is guaranteed. Lender activity is based on public reports and may change.
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