3 ms·
Heat pumps are ~3X more efficient and are hitting the sweet spot of economies of scale and incremental improvement. So, more likely would be water storage tanks
by jonstewart 4y ago
Heat pumps are ~3X more efficient and are hitting the sweet spot of economies of scale and incremental improvement. So, more likely would be water storage tanks powered by heat pumps, that store heat during the day (when temps are higher and solar power’s cheap), with release through the evening.
If there’s a neat thing about these old resistive heat storage bricks, it’s the use of a fan to deliver hot air immediately.
- benj111 4y agoThe efficiency only matters assuming electricity stays expensive and constantly priced. If the economics of generation v storage work out that it's cheaper to overgenerate most of the time, efficiency isn't going to matter, demand shifting to when energy is cheap is going to be the key. So then it's a question of heat pump is battery storage v storage heater.