Germany isn't a failure (yet?), they reduce emissions at a good pace and the objective is set to year 2050. California has AFAIK a major grid-related problem:

Germany isn't a failure (yet?), they reduce emissions at a good pace and the objective is set to year 2050. California has AFAIK a major grid-related problem: bad maintenance, not enogh interconnections with neighboring states... In which way renewable energy creates a problem there?