Wind and solar require you to buy two power plants — the wind / solar primary generator AND the backup natural gas powered turbines to supply power during dark or windless times.
Or you buy the windmills and solar cells as plant #1 and you buy the batteries as plant #2.
There is no way it can compete with tech that doesn’t require you to buy plant #2.
I went last year to a solar-show in Munich, and watched a number of demonstrations and talked to one smart engineer. In the current design, with around 16 panels and a battery rack in the basement, I could supply all the power I needed for the house (freezer and refrigerator included) and easily charge up the car, but timing came into play.
Based on the averages of sunshine per day...this would only cover about 280 days a year (central Germany location). So I’d have to continue to be tied to the grid. The other issue was that you’d typically charge the electrical car....after 6 PM, and this would eat up the charge on your solar potential collected and stored in the stupid batteries. With sun out till 10 PM in the summer....it would work out. The other six months of the year, no such luck.
So I brought up the wind business, and they had several ‘quiet’ wind collectors and this could figure into this. I’ve seen some Icelandic engineers who seem to have a hot project in the future for wind collection. But it just means an awful lot of infrastructure and you having to continually monitor your entire system for maintenance issues.