Wind is generally stronger at night. The issue with wind is intermittency.

Likewise solar. Solar contains a predictable component with a stochastic component (clouds) overlaid.

Solar thermal can mostly solve the problem.

Wind is usually stronger during daylight.

I expect that to be dependent on location. Near coasts, for example, the physics driving sea and land breezes (https://en.wikipedia.org/wiki/Wind#Sea_and_land_breezes) will either increase or decrease wind speed depending on local prevailing winds.

It also can depend a lot on height (very important for wind turbines)

With cheap enough electricity you can make artificial hydrocarbons.

The process is not as efficient as batteries (or just burning oil products found in the ground), but you get similar energy densities as the normal hydrocarbons. After all, the chemistry is the same.

I just wish we had functioning carbon tax or carbon emission markets. Then the government could just set the price or volume, and the market could figure out the most cost-efficient energy mix to hit the target.