3 ms·

this is not complete. the limit is often technical because EVs and electric heating increase the energy and peak power demands on the grid. Grid operators also

this is not complete. the limit is often technical because EVs and electric heating increase the energy and peak power demands on the grid. Grid operators also do not have infinite capacity to retire entire neighbourhoods to support the increased power demands of increased HVAC capacity combined with EV capacity.

KingOfCoders 4y ago
EVs that are not used acting as local batteries decrease the demand on the grid. If every car in Germany would be an EV the battery capacity could power all of Germanys electric power needs for two days. Things are more complex than they seem to be at first sight.
- eldaisfish 4y ago
  EVs = grid storage gets thrown around a lot. There is currently no viable pricing model for these services, they have not been trialed at any scale and there is little to no legal framework with either vehicle manufactures or battery suppliers in terms of the warranty. Your claim of batteries powering a gigawatt scale grid for two days does not pass the smell test. Something is off so it might help to show calculations or sources.
  - KingOfCoders 4y ago
    "Your claim of batteries powering a gigawatt scale grid for two days does not pass the smell test." What smell test? What doesn't specifically sound right? I might have miscalculated of course, 50M cars x 50kwh = 2500Gwh = 2.5Twh Germany Electricty usage: 561,8 Twh/ year -> /365 = 1.54Twh / day So two days ~3TwH, Battery capacity ~2.5Twh I would be interested in any corrections, especially as you are a renewable energy researcher and I'm just a coder.
bluGill 4y ago
Wires have an expected lifespan of about 15 years. They can go longer only if accept poor reliability. Wires themselves last longer, but the poles, insulation (a big problem underground), transformers, breakers, and all the other parts don't and get replaced all the time. Most neighborhoods.are fine, with just smaller taps to bring more power in. They have years to fix this.

KingOfCoders 4y ago

EVs that are not used acting as local batteries decrease the demand on the grid. If every car in Germany would be an EV the battery capacity could power all of Germanys electric power needs for two days. Things are more complex than they seem to be at first sight.

eldaisfish 4y ago
EVs = grid storage gets thrown around a lot. There is currently no viable pricing model for these services, they have not been trialed at any scale and there is little to no legal framework with either vehicle manufactures or battery suppliers in terms of the warranty. Your claim of batteries powering a gigawatt scale grid for two days does not pass the smell test. Something is off so it might help to show calculations or sources.
- KingOfCoders 4y ago
  "Your claim of batteries powering a gigawatt scale grid for two days does not pass the smell test." What smell test? What doesn't specifically sound right? I might have miscalculated of course, 50M cars x 50kwh = 2500Gwh = 2.5Twh Germany Electricty usage: 561,8 Twh/ year -> /365 = 1.54Twh / day So two days ~3TwH, Battery capacity ~2.5Twh I would be interested in any corrections, especially as you are a renewable energy researcher and I'm just a coder.

bluGill 4y ago

Wires have an expected lifespan of about 15 years. They can go longer only if accept poor reliability. Wires themselves last longer, but the poles, insulation (a big problem underground), transformers, breakers, and all the other parts don't and get replaced all the time. Most neighborhoods.are fine, with just smaller taps to bring more power in. They have years to fix this.