Because they are much cheaper and much quicker to build .
Oh, and no toxic waste to manage for thousands of years .
They require way less water .
They can literally be spread all across the community where the load is. The thousands of generation points adds an enormous amount of security and reliability to the grid.
Zero security issues .
The input energy source isn't controlled by cartels or whacky dictators and will never increase in price.
For the first time the householder will be the generator as well as the customer.
