While it is difficult to conceive if you have not thought it through, it is possible that the world will enjoy free energy in the not too distant future. At my age, I may not see it in my lifetime, but I believe it's coming. The significant foothold mentioned above gives me great confidence in a free-energy world ahead.
It is conceivable today that, if I made the investments, I could use my solar-powered home to charge my electric vehicle. My house and car would be powered by free energy, which the sun happily provides. Of course you have to buy the solar panels, battery storage and electric car, but the energy from the sun is free.
Our strip mall landlord would not allow us to install solar panels on the roof to power our gym. But with the significant power bills we pay each month, the economics of doing so are appealing. Imagine that. A gym powered off grid. That immediately frees the grid for other uses like providing electricity to charge electric vehicles in parking lots when people are away from home. As the technology advances and costs come down, it is very easy to imagine landlords shifting their views. Instead of prohibiting solar panels, they will provide them as a free-electricity incentive to draw tenants in.
By the way, solar panels are nearly 100% recyclable, and there are companies emerging now to meet that need and business opportunity (not a green deal thing at all, just good business).
I like the idea. Instead of being an electric consumer, I'm an energy producer.
While there are plenty of people eager to explain why none of this can work, people like Musk and others are leading the way. The electric grid powered by centralized power plants is a thing of the past. As solar, wind and other renewable energy is enhanced, the need for centralized power plants fades.