Chinese solar equipment producers are shifting from panels to battery storage to tackle a chronic oversupply in the panel and equipment market that has crashed many sector players’ bottom lines. The latest to make the move was one of the largest in the sector, Longi Green Energy Technology. Bloomberg cited a security filing by the company showing that it was planning to buy a majority stake of 62% in local battery storage maker PotisEdge. The surge in EVs and solar and wind power installations has resulted in excessive manufacturing capacity…