> Solar and Wind need a backup. Solar only works for 1/3 of the day, at most. It needs a backup. At the moment our backup is burning fossil fuels. It depends o

> Solar and Wind need a backup. Solar only works for 1/3 of the day, at most. It needs a backup. At the moment our backup is burning fossil fuels. It depends on where you live. In my country (which is a huge country), the backup is hydroelectric dams. Burning fossil fuels (and nuclear) is mostly kept constant during the day, it's the hydroelectric dams which follow both the load and the changes in solar and wind.