3 ms·

While the solar may be of relatively little use at that time a battery would still help shift the load around and reduce peak demands on the grid. V2G would al

by rgmerk 3y ago

While the solar may be of relatively little use at that time a battery would still help shift the load around and reduce peak demands on the grid. V2G would also really help in this scenario because of the sheer size of EV batteries. If you’re using them as home storage batteries once or twice a year it’s probably not going to hurt the lifespan too much.

nomel 3y ago
> If you’re using them as home storage batteries once or twice a year it’s probably not going to hurt the lifespan too much. For much of the world, the dim days of winter are much longer than a few days. Storage couldn't work for these places. Taking clean energy from distance places would be required.
- rgmerk 3y ago
  Yes and no. Yes, I get that winter lasts for months and agree that you can't possibly store enough energy in chemical batteries to cover it all. However, demand peaks by definition occur only for short periods, and shaving those peaks reduces the need for grid infrastructure compared to what you would need otherwise.
  - nomel 3y ago
    > reduces the need for grid infrastructure Maybe I'm misreading this, but the infrastructure couldn't be reduced. Battery storage acts as a filter, allowing you to optimize the transition for both sides of the duck curve [1], but reducing infrastructure, as in removing plants, can't be done somewhere that can have its power generation halved by a passing tropical storm. If you're saying "reduce dirty power", then yes. :) As a side note, here's some interesting graphs I just found: California: https://www.researchgate.net/figure/California-daily-power-generation-accumulation-curves-and-demand-curve-313-Mechanisms_fig2_346482723 https://www.researchgate.net/figure/California-daily-power-g... Germany: https://www.researchgate.net/figure/Germany-daily-power-generation-accumulation-curves-and-demand-curve-323-Mechanisms-to_fig3_346482723 https://www.researchgate.net/figure/Germany-daily-power-gene... Everything is so flat in Germany! Including demand!

by rgmerk 3y ago

nomel 3y ago

> If you’re using them as home storage batteries once or twice a year it’s probably not going to hurt the lifespan too much. For much of the world, the dim days of winter are much longer than a few days. Storage couldn't work for these places. Taking clean energy from distance places would be required.

rgmerk 3y ago
Yes and no. Yes, I get that winter lasts for months and agree that you can't possibly store enough energy in chemical batteries to cover it all. However, demand peaks by definition occur only for short periods, and shaving those peaks reduces the need for grid infrastructure compared to what you would need otherwise.
- nomel 3y ago
  > reduces the need for grid infrastructure Maybe I'm misreading this, but the infrastructure couldn't be reduced. Battery storage acts as a filter, allowing you to optimize the transition for both sides of the duck curve [1], but reducing infrastructure, as in removing plants, can't be done somewhere that can have its power generation halved by a passing tropical storm. If you're saying "reduce dirty power", then yes. :) As a side note, here's some interesting graphs I just found: California: https://www.researchgate.net/figure/California-daily-power-generation-accumulation-curves-and-demand-curve-313-Mechanisms_fig2_346482723 https://www.researchgate.net/figure/California-daily-power-g... Germany: https://www.researchgate.net/figure/Germany-daily-power-generation-accumulation-curves-and-demand-curve-323-Mechanisms-to_fig3_346482723 https://www.researchgate.net/figure/Germany-daily-power-gene... Everything is so flat in Germany! Including demand!