3 ms·

Yes nuclear was notably missing. Also the „Li-ion (4h-8h)“ range for storage is doing a lot of work. You can’t operate a grid with intermittent energy productio

Yes nuclear was notably missing. Also the „Li-ion (4h-8h)“ range for storage is doing a lot of work. You can’t operate a grid with intermittent energy production on a 4h buffer, 8h I‘m not sure. Unless they include nuclear I‘m assuming this compares unfavorably.

nl 4y ago
> You can’t operate a grid with intermittent energy production on a 4h buffer, With good electricity transmission you can. Infact, in this plan they specifically model this, and it comes out that by overbuilding solar/wind 32% you are fine. > here is an economic tradeoff between building excess renewable generation capacity, building grid storage, or expanding transmission capability. That tradeoff may evolve as grid storage technologies mature, but with the assumptions modeled, the optimal generation and storage portfolio resulted in 32% curtailment and the footnote: > Currently, the transmission capacity is <1% of the combined regional peak loads (with transmission to/from Texas the lowest). Higher transmission capacities generally reduce the total generation and storage buildout, but there is an economic tradeoff between building more transmission and building more generation plus storage.
- MrBuddyCasino 4y ago
  Am I misunderstanding this or does this make the whole grid a lot more vulnerable? The internet was once designed to be resilient, economic forces have made it centralized in large network exchanges and thus vulnerable. We did the same with our supply chains, and it backfired so badly during covid that we're still not fully recovered. Should we do the same with our electricity supply?
  - Schroedingersat 4y ago
    The gas generators don't evaporate. Using them for a week once a decade is a negligible amount of emissions and paying the entire staff to just mime the other 99.5% of the time on top of a renewable grid is still vastly cheaper.
  - bryanlarsen 4y ago
    What's more reliable: two massive Sun Enterprise servers, or a 100 PC's?
Schroedingersat 4y ago
Nuclear is neither all that reliable nor is it dispatchable. And yes you can with a small amount of dispatchable energy: https://www.nature.com/articles/s41467-021-26355-z https://www.nature.com/articles/s41467-021-26355-z

nl 4y ago

> You can’t operate a grid with intermittent energy production on a 4h buffer, With good electricity transmission you can. Infact, in this plan they specifically model this, and it comes out that by overbuilding solar/wind 32% you are fine. > here is an economic tradeoff between building excess renewable generation capacity, building grid storage, or expanding transmission capability. That tradeoff may evolve as grid storage technologies mature, but with the assumptions modeled, the optimal generation and storage portfolio resulted in 32% curtailment and the footnote: > Currently, the transmission capacity is <1% of the combined regional peak loads (with transmission to/from Texas the lowest). Higher transmission capacities generally reduce the total generation and storage buildout, but there is an economic tradeoff between building more transmission and building more generation plus storage.

MrBuddyCasino 4y ago
Am I misunderstanding this or does this make the whole grid a lot more vulnerable? The internet was once designed to be resilient, economic forces have made it centralized in large network exchanges and thus vulnerable. We did the same with our supply chains, and it backfired so badly during covid that we're still not fully recovered. Should we do the same with our electricity supply?
- Schroedingersat 4y ago
  The gas generators don't evaporate. Using them for a week once a decade is a negligible amount of emissions and paying the entire staff to just mime the other 99.5% of the time on top of a renewable grid is still vastly cheaper.
- bryanlarsen 4y ago
  What's more reliable: two massive Sun Enterprise servers, or a 100 PC's?

Schroedingersat 4y ago

Nuclear is neither all that reliable nor is it dispatchable. And yes you can with a small amount of dispatchable energy: https://www.nature.com/articles/s41467-021-26355-z https://www.nature.com/articles/s41467-021-26355-z