In September, California Governor, Jerry Brown, unveiled a new gold standard for renewable energy in the U.S. – a mandate requiring the state to go 100% “green” by 2045. Yet for all the bill’s praise, a report published by S&P Global Ratings suggests that numerous technological and political challenges lie ahead.
As California edges towards its renewable goal, the economics of gas-fired generation promises to worsen. On the flip side, renewable energy will of course benefit though the extent of this will depend on the asset type. The durability and reliability of hydro and geothermal power, for instance, put these assets in pole position. Question marks remain over solar and wind, however: the intermittent nature of these resources will, according to some estimates, necessitate a 200-fold increase in battery storage. Development in this sector has yet to truly take off.