Large-scale battery projects of the type announced earlier this month by Renewable Energy Systems (RES) America are a “natural fit” for renewable energy developers, according to one analyst.

LG Chem and Siemens have announced the signing of a deal to “collaborate more closely” on grid-stabilising energy storage systems, which will include work on Siemens’ Siestorage solution for grid integration of renewable energy.

Aerospace giant Lockheed Martin has acquired energy storage company Sun Catalyx, which was founded by a Massachusetts Institute of Technology (MIT) professor and has recently been developing flow batteries for grid storage.