International power producer ContourGlobal has solidified a 3 GWh battery energy storage system (BESS) supply agreement with Chinese battery giant CATL, advancing its 2026 expansion efforts across three key global projects.

The deal covers CATL’s widely used lithium iron phosphate (LFP) battery technology, set to power three of ContourGlobal’s flagship assets: the 500MW/2,000 MWh Wallace BESS project in Scotland (acquired in June and in advanced development), the 100 MW/400 MWh Taxiarches project in Greece (purchased as a ready-to-build asset in January), and the 90 MW/360 MWh battery component of the Los Maitenes hybrid solar-plus-storage project in Chile (paired with a 141 MW solar farm that recently commenced operations).

Under the agreement, CATL will supply 526 battery containers equipped with LFP cells, each boasting a 5.64 MWh capacity and configured for four-hour discharge durations. While peak power output details were not disclosed, each block is expected to deliver 1.4 MW, with CATL providing its liquid-cooled system integration technology for the deployments.

Backed by KKR, ContourGlobal operates 5.7 GW of renewable projects globally, with an additional 2 GW under construction. This latest deal follows a string of recent milestones, including a 1 TWh solar-storage power purchase agreement (PPA) with Tesla in Arizona announced weeks ago, and the acquisition of 9.5 GWh of BESS capacity in Italy in July 2025.

“We are proud to establish this framework agreement with CATL, a global leader in BESS,” said Antonio Cammisecra, CEO of ContourGlobal. “Beyond equipment supply, we are building a standardized utility-scale BESS platform across multiple regions, enabling consistent engineering, testing, commissioning, and long-term asset management. By aligning technical requirements and project execution practices, we reduce delivery risks, speed up deployment, and create a scalable model for our storage business growth. This agreement reflects both companies’ commitment to accelerating the deployment of reliable utility-scale battery storage through long-term collaboration.”