'Sand battery' could solve green energy's big problem(bbc.co.uk)14 points·by QuarkForMrMark·4 ปีที่แล้ว·1 commentsbbc.co.uk'Sand battery' could solve green energy's big problemhttps://www.bbc.co.uk/news/science-environment-619965201 commentsPost comment[–]synctext·4 ปีที่แล้วreplyFascinating stuff. Some numbers from the startup website[1]:- < 10 eur/kWh of storage capacity (piping is now dominating cost)- The storage has 100 kW heating power and 8 MWh capacity.- three times superior to water-based storage and beyond boiling point [2]- related scientific work, using granite [3][1] https://polarnightenergy.fi/technology[2] https://www.youtube.com/watch?v=tm7spMG0ch8&t=871s[3] https://www.mdpi.com/1996-1073/13/21/5662/pdf
- < 10 eur/kWh of storage capacity (piping is now dominating cost)
- The storage has 100 kW heating power and 8 MWh capacity.
- three times superior to water-based storage and beyond boiling point [2]
- related scientific work, using granite [3]
[1] https://polarnightenergy.fi/technology
[2] https://www.youtube.com/watch?v=tm7spMG0ch8&t=871s
[3] https://www.mdpi.com/1996-1073/13/21/5662/pdf