The current alternative is to keep installing solar and wind and (eventually) wave plants ... which the smart money has been investing in, which require no government-paid insurance, and which generate no waste-that-has-to-be-safely-stored-forever.
Time-averaged outputs are 1,045 MW wind, 175 MW solar. (2nd table, in units of gigawatt-hours per year. The 1st table shows peak capacities: 4,967 MW wind, 855 MW solar).