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gravity energy storage
Trends
- 1Physicist urges scepticism on gravity energy storage schemes●If you hear about this idea of lifting weight to store energy, be sceptical. E = m*g*h 1kWh = 3.6*10ˆ6 Joule So to store
A sceptical take on gravity-based energy storage is making the rounds: using E = mgh, lifting 1 kg would need to rise 360 km to store 1 kWh, or 10,000 kg must be hoisted 36 metres. The point: moving extremely heavy things very high is expensive, making such storage ideas impractical at scale.