Jupiter Power raises $1.4B for new Texas and Michigan storage assets

Solmar Insights

Jupiter Power has closed $1.4 billion in project financing to back the construction and operation of ten utility-scale battery energy storage projects totaling 1.5 GW across Texas and Michigan. This latest round brings Jupiter Power’s total raised capital above $3 billion, as the company expands its storage footprint in several of the most active U.S. power markets.

Financing package details

The $1.4 billion was arranged across four distinct transactions closed from April through July 2026, incorporating senior secured project debt, tax equity bridge loans, and a U.S. private placement. The strategy diversified both lenders and collateral structures, reflecting the growing institutional appetite for standalone battery assets in key RTOs and ISOs.

Among the transactions, a $536 million senior secured facility in July 2026 backed the construction of three Texas assets, Tidwell Prairie II, Bee Branch, and Barton Branch. HSBC Bank USA and SMBC led as the facility’s lenders, enabling Jupiter Power to start new construction this year. In June 2026, the company raised $281 million in a BBB- private placement with AB CarVal and Nuveen, collateralized by three operating battery projects spanning Texas and Michigan.

Additional transactions completed in April and May 2026 included a $258 million senior facility for Texas-based Callisto II and Pamela Heights I (arranged by Societe Generale and MUFG) and a $294 million construction package for Michigan’s Grand Basin and Voyager I with ING Capital and Societe Generale. Each deal tailored its structure to project readiness and market requirements, optimizing capital efficiency for the developer.

Project portfolio and market reach

The ten battery energy storage system assets supported by these transactions represent 1,500 MW and 3,600 MWh of capacity, geographically spread across ERCOT in Texas and the MISO region in Michigan. Sites named in the deals, such as Tidwell Prairie (I and II), St. Gall II, Tibbits, Callisto II, Pamela Heights I, Grand Basin, and Voyager I, met Texas and Michigan grid needs for flexibility and reliability amid accelerating renewable penetration.

Jupiter Power’s operational and committed portfolio now totals 5.6 GW / 19.7 GWh, with another 23 GW in earlier-stage development across major U.S. power markets. This breadth positions the company to respond as more grid operators set procurement targets for storage, driven by shifting capacity reserve requirements and the dynamics of intermittent solar and wind additions.

By leveraging cross-market activity, Jupiter Power targets both the mature ERCOT spot market, now relying heavily on batteries for reserves and price arbitrage, and the evolving MISO landscape, where storage is beginning to play a strategic role in intra-hour balancing and renewable integration.

Capital markets and execution strategy

The closure of four financing deals in just four months underscores the deepening relationships between Jupiter Power and a diversified field of capital providers, including both commercial lenders and private placement investors. The company’s chief financial officer credited the deals to execution capability and the willingness of debt and equity markets to support flexible, scalable project portfolios.

Distinct structures across the transactions, such as tax equity bridge loans, construction term loans, and investment-grade private notes, allowed the developer to meet specific market dynamics and project timelines without overexposing individual assets or relying on a single financing channel. The syndicate approach also spread risk across multiple institutions, including HSBC, SMBC, Societe Generale, MUFG, ING Capital, AB CarVal, and Nuveen.

This multi-faceted capital strategy provides Jupiter Power with the flexibility to rapidly scale deployment as ERCOT and MISO market signals evolve. It also demonstrates a road map for other utility-scale storage developers, highlighting the value in building multi-source, multi-phase capital stacks tailored to both greenfield and operational assets.

Texas and Michigan storage context

The $1.4 billion of new financing lands as the Texas energy storage sector continues to outpace much of the nation. As of early 2026, grid operator data showed ERCOT battery capacity at nearly 15 GW, almost doubling from 7.8 GW a year prior, making Texas among the largest and fastest-growing energy storage markets globally.

This growth reflects both policy and market signals: record summer demand, tightening reserve margins, and plentiful grid congestion open lucrative opportunities for storage to provide reserves, price smoothing, and intraday shifting. Michigan, while lagging Texas in total battery volume, is likewise increasing its reliance on grid-scale storage to balance its resource mix.

Projects in both states benefit from participation in ISO markets: in ERCOT, standalone batteries bid into energy and ancillary services, capitalizing on volatility; in MISO, assets like Grand Basin and Voyager I are positioned as the MISO region begins procuring non-wires alternatives and revises its capacity accreditation for storage resources.

Outlook for battery investment

The totality of Jupiter Power’s recent capital raise signals sustained momentum for battery project finance as market design and grid needs align in major U.S. markets. Institutional buyers and investors continue to show rising confidence in the standalone storage asset class, valuing flexible deal structures and visible operating portfolios.

Other developers may look to replicate Jupiter Power’s four-transaction model, particularly as energy storage market rules finalize and multi-gigawatt capacity targets are adopted by ISOs and utilities. With grid flexibility, reliability, and resilience increasingly front-of-mind for power offtakers, storage is likely to maintain its role atop U.S. project finance priorities through the remainder of the decade, with Texas set as a proving ground for operational and financial innovation alike.

Reporting via the original publisher