Calibrant Energy, an energy-as-a-service platform, has closed a US$145 million debt facility for solar and energy storage projects across several US power markets.
Announced on 10 November, the debt facility was led by financial services company Investec, and the supported project portfolio includes a 120MWh battery energy storage system (BESS) serving a hyperscale data centre customer in PJM.
Citi, Liberty Bank, and Siemens Financial Services also participated in the facility. Calibrant claimed its engineered BESS solutions give facilities like data centres greater control over their ability to draw power, supporting faster interconnection timelines and reducing the need for expensive grid infrastructure upgrades.
In October 2025, Calibrant announced it would deliver a 31MW/62MWh BESS at Aligned Data Centres’ campus in the Pacific Northwest.
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At the time, Aligned hailed the project as the “first-of-its-kind” because it “will be the first time in the US that a battery system is purpose-built to accelerate interconnection and bring a large-scale data centre online.”
Calibrant CCO Matt Barnes spoke with Energy-Storage.news Premium about that project in December, stating that “The data centre is already built but was waiting on utility power that was potentially years out. The BESS enables [utility] PGE to serve the customer in a more accelerated time frame, because the delays were about the data centres’ load during peak hours. The BESS will essentially make the data centre a more flexible form of load.”
Energy Vault receives US$137.5 million to power data centres with gas
NYSE-listed energy infrastructure company Energy Vault has received a US$137.5 million senior secured credit facility to support its procurement of 275MW of reciprocating engine generation capacity.
Announced 29 October, Energy Vault received the credit facility from private credit investment manager Eagle Point Credit Management.
Energy Vault is seeking 275MW of reciprocating engine generation capacity utilising Rolls-Royce MTU technology for deployment across its hyperscale AI and data centre infrastructure projects.
The company stated that equipment deliveries are expected to start in the second half of 2027 and continue through the first half of 2028. The transaction builds on Eagle Point’s relationship with Energy Vault and was completed through collaboration between Eagle Point’s Infrastructure Credit and equipment finance capabilities.
In August, Energy Vault announced it would supply grid-forming BESS, power conversion systems (PCS), and AI infrastructure control software to an undisclosed data centre customer.
The company also stated at the time that it expects the agreement to generate approximately US$500-$600 million in revenue during the second half of 2026 and 2027.
In September, Energy Vault acquired a 15-project BESS portfolio with a capacity of more than 2.3GW from fellow US BESS developer Goshe Energy Storage.
The company also secured a US$40 million credit facility commitment from investment firm S2G Investments, which it said would support the development, construction, and operations of the acquired portfolio.
Energy Vault leaped into industry headlines in around 2019 with a novel gravity-based energy storage technology but has since pivoted to BESS integration and build-own-operate (BOO) project development, listing on the NYSE along the way, in 2022.
