Pacific Gas & Electric Co. (NYSE:PCG) is reportedly nearing a deal to sell a stake in its fleet of power plants to KKR & Co. Inc. (NYSE:KKR) in an effort to raise funds needed to upgrade infrastructure and reduce the risk of fire resulting from its power lines. The Details: According to a report from the Wall Street Journal, PG&E said it is seeking regulatory approval to transfer its hydroelectric system and some natural gas, solar and battery facilities, into a new subsidiary called Pacific Generation. PG&E then plans to sell 49.9% of the subsidiary to KKR. PG&E said the assets under consider…