EXECUTIVE SUMMARY

Calibrant Energy, a provider of on-site energy solutions,  has secured a $145 million debt facility led by Investec to support solar and battery energy storage system (BESS) projects across multiple US power markets. Announced on 10 November 2026, the financing will recapitalise operating assets and fund new construction projects. The portfolio includes a 120 MWh BESS serving a hyperscale data centre customer in PJM. Citi, Liberty Bank and Siemens Financial Services also participated in the facility.

Boston-based Calibrant Energy provides on-site energy solutions for large electricity consumers. The company develops, owns and operates energy infrastructure, offering turnkey solutions without requiring customers to make upfront capital investments.

The 120 MWh BESS project is part of Calibrant's efforts to provide energy-intensive facilities with greater control over their electricity consumption. According to the company, data centre operators are seeking faster access to power as PJM and federal regulators address grid connection requirements for large electricity users.

Calibrant's engineered battery storage solutions allow these facilities to manage when and how they draw electricity from the grid. The company stated that this flexibility supports faster interconnection timelines and reduces the need for costly grid infrastructure upgrades, which could otherwise be passed on to other ratepayers.

Phil Martin, Chief Executive Officer of Calibrant Energy, said data centre operators are increasingly choosing on-site energy storage to access reliable electricity while managing their interaction with the grid. He highlighted the financial close and site mobilisation for a hyperscale data centre as evidence that large-load flexibility is commercially achievable.

Fred Petit, Co-Head of Energy & Infrastructure North America at Investec, said the bank was pleased to support Calibrant and Macquarie through the transaction. He noted that the financing supports energy transition infrastructure and the growing electricity requirements of large consumers across the United States.

Calibrant Energy reported that its battery storage portfolio now exceeds 5.9 GWh. This includes projects already operating, facilities under construction and capacity covered by exclusive development agreements. The portfolio also includes additional sites associated with the same hyperscale data centre customer.

The company attributed this growth to increasing demand from large electricity users for on-site energy solutions that provide faster access to power while reducing pressure on the grid.

The financing supports Calibrant's continued development of solar and battery storage infrastructure across US electricity markets, including projects serving large power consumers and hyperscale data centres.