> No battery farm can protect a solar/wind grid from an arbitrarily extended period of bad weather. If you have battery backup sufficient for time T and the wea

> No battery farm can protect a solar/wind grid from an arbitrarily extended period of bad weather. If you have battery backup sufficient for time T and the weather doesn't cooperate for time T+1, you're in trouble. It's the grid which protects it and if the grid is broken nuclear is even worse since you're suddenly faced with far too much power on a small portion of the whole grid. Meanwhile with renewables, even if the grid is broken on several points, you are much better off due to the distribution of power generation.