Originally Posted by ksanders
Solar alone cannot eliminate fossil fuel power generation for a variety of reasons.
The simple fact is that until they figure out a way to store large amounts of energy during the times when the sun is not available, you will still need generator units that you can start up and run when you need them.
I think the biggest reason is that there is little incentive for the power companies and utilities to invest in serious R&D to develop efficient energy storage.
If every building was to install a Tesla battery, market forces would drive battery innovation very quickly for batteries to become much more efficient and cost effective.
If power utilities invested in technologies like molten salt storage similar innovation would happen. Molten Salt Energy Storage — SolarReserve
Whist many individuals can see the benefits, society as a whole had decided that cheap is better, no matter what the cost!