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by hpb42
1050 days ago
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Cool! Thanks for the link. A 10 kWh flywheel that can charge/discharge at 20 kW (lasts for 20~30 min at this power) costs ~11500 USD + installation and control system. A Tesla Powerwall has 13.5 kWh capacity, delivers power at ~6 kW and costs ~11500 USD. That doesn't seem a large difference to me. |
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