Solar is the cheapest form of electricity. Why? Batteries.
The price of solar panels has been declining rapidly for years, to the point where they are almost free.
But over the past 3 years, the price of LifePo4 batteries – batteries that last 3,000-5,000 cycles or 10 to 15 years – has crashed as well.
This makes the levelized cost of solar + batteries the cheapest 24/7 electricity available commercially.