Does the Renewable Energy Argument for Bitcoin make any sense?

I've been hearing the argument that Bitcoin allows wind and solar energy to be used that otherwise might be wasted. e.g. off-peak energy from wind or solar that is unused can be used to mine bitcoin.

I have been digging into mining Bitcoin with a large wind farm, but I'm finding it doesn't make sense for two reasons:

1. ASICs suffer from thermal cycling if you turn them on and off with the wind. (There is no way it is economical to use batteries to store the wind power, batteries would need to be at $10/kWh or less and today they are at $100+/kWh).
2. If you only mine Bitcoin while electricity is cheap (i.e. off-peak), it means you aren't using the ASICs all of the time, which means my payback period is much longer.

Has anyone economically been able to use wind or solar for Bitcoin mining?

Side-note: I can see how geothermal or hydro work for Bitcoin because they provide a more continuous base load of power.