“Dispatchable generation” may be a better fit for what you’re talking about. https://en.wikipedia.org/wiki/Dispatchable_generation https://en.wikipedia.org/wik

“Dispatchable generation” may be a better fit for what you’re talking about. https://en.wikipedia.org/wiki/Dispatchable_generation https://en.wikipedia.org/wiki/Dispatchable_generation “Firm power” is more about the type of relationship between energy generation and consumers than the actual technology being used. https://en.wikipedia.org/wiki/Firm_service https://en.wikipedia.org/wiki/Firm_service