Re:A molten salt storage solution using sodium hydroxide
by lstodd on Saturday December 11, 2021 @09:55AM
(#29521260)
> What is the benefit of storing the heat of wood pellet or gas? Can't you just use those on demand?
Burners scale badly to lower power. Also, automatic pellet feeders are prone to breaking down, which you absolutely do not want to happen when it's -15C on the outside.
Thus a thermal buffer is needed.
> Also hot firebricks was my proposed solution. Water has comparatively low energy density
Water actually has about four times more energy density than bricks.
> I understand that there isn't a ton of sun in winter months but maybe you could over provision your PV
Prohibitevily expensive in both money and area needed
> store summer or fall solar energy
Impossible. Where and how would you store enough?
Also hot firebricks was my proposed solution. Water has comparatively low energy density and I wouldn't want the corrosive liquid either.
I understand that there isn't a ton of sun in winter months but maybe you could over provision your PV, store summer or fall solar energy and top up with whatever you can get from the sun in the winter?