Post by Siri Cruise
Nobody expects to be just wind or solar or hydroelectric. What's wanted is
efficient way to store energy and fossil fuel generators that can be accelerated
and decelerated from full power cheaply.
AIUI scalable storage solutions aren't economically viable at present.
However there are still great CO2 savings to be made if gas is only used
as a backup supply to variable supplies such as wind, solar, etc. Long
distance distribution may also be used to reduce the need for gas backup.
However for a real zero CO2 solution Nuclear still appears to be the
only viable economic solution. I don't really understand why Nuclear
isn't being pushed more. My guess is that companies are worried at the
long term investment required. When you are looking at a 50 year return
on investment there is clearly a high risk that future cheaper
technological advances may reduce future income.
So the holy grail promise of improved storage may actually be preventing
a practical solution being implemented now.