3 ms·
No-one is denying the concept would work -- it's just an enormously expensive way to save remarkably little energy. A Macbook Pro battery -- 63.5 Wh -- can sto
by Tloewald 13y ago
No-one is denying the concept would work -- it's just an enormously expensive way to save remarkably little energy.
A Macbook Pro battery -- 63.5 Wh -- can store as much energy as a 46kg mass suspended in a 500m shaft operating with 100% efficiency. Now, which do you think costs more to build and maintain?