You still get wind power at night in most areas. You can also ramp up natural gas plants at night to pick up demand. You can store energy as well using pumped

You still get wind power at night in most areas. You can also ramp up natural gas plants at night to pick up demand. You can store energy as well using pumped hydro or batteries. We are not yet in a situation where large-scale storage is totally necessary though. The grid managers are able to make everything work using the flexible resources already on the grid today.