DigitalBridge Group agreed to acquire ArcLight Capital Partners, a North American power and electric infrastructure investor, for a total transaction value of up to $1.05 billion, the company said Tuesday. Structurally, the transaction is composed of a $650 million base price with an additional contingent component of as much as $400 million.

Together, the two firms would form a platform targeting what DigitalBridge describes as the intersection of power, AI, and digital infrastructure, with their combined assets exceeding $150 billion. ArcLight will operate as a separately managed business within DigitalBridge following the close of the transaction.

The deal is conditioned on completion of SoftBank Group Corp.'s previously announced acquisition of DigitalBridge and will not alter the terms or consideration of that transaction. The deal is also subject to regulatory approvals and requisite limited partner consents.

Since its founding in 2001, ArcLight's portfolio has encompassed upwards of 70 gigawatts of generation capacity and roughly 48,000 miles of electric and gas transmission and storage infrastructure, with an aggregate enterprise value exceeding $90 billion. Its North American operations are backed by a dedicated 85-person power development team and a development pipeline that surpasses 15 gigawatts.