It's not really that hard. Build a lot of wind turbines (more than 100% coverage), reinforce the grid and add some storage.
Offshore wind turbines is a thing. The tech is still somewhat in its infancy, but the costs are coming down.
For a high bound regarding storage, take hydrogen, otherwise whatever cheaper will be in production when you get to it. There are several academic studies of this.
It's not rocket science, just lots of incremental engineering and economics of scale.
If your point is that cities don't have space to provide their own power, yes, you're right, just as they don't have space to grow their own food.
https://news.energysage.com/states-with-100-renewable-target...
It's not really that hard. Build a lot of wind turbines (more than 100% coverage), reinforce the grid and add some storage.
Offshore wind turbines is a thing. The tech is still somewhat in its infancy, but the costs are coming down.
For a high bound regarding storage, take hydrogen, otherwise whatever cheaper will be in production when you get to it. There are several academic studies of this.
It's not rocket science, just lots of incremental engineering and economics of scale.
If your point is that cities don't have space to provide their own power, yes, you're right, just as they don't have space to grow their own food.