3 ms·
It used to be the case. The energy cost of production was massively higher in their early days and if the waste heat was used, there wasn't a net energy savings
by aperson_hello 4y ago
It used to be the case. The energy cost of production was massively higher in their early days and if the waste heat was used, there wasn't a net energy savings. Not so much anymore, especially when increased lifespan is taken into account (it's at least at parity at this point).