6 ms·
It doesn't seem to be a crazy price, although I think your units need adjustment? Seems to be $533 per kilowatt of carrying capacity, which is 53.3 cents per W
by patrickg_zill 8y ago
It doesn't seem to be a crazy price, although I think your units need adjustment?
Seems to be $533 per kilowatt of carrying capacity, which is 53.3 cents per W, as you mentioned.
A kWh (1 hour x 1 kW) usually costs between 5 and 10 cents depending on the market, so, how many hours will the line need to be carrying its full complement of electricity in order to say, increase the cost by (a contrived number) only 1 cent per kWh?
I fully admit I don't know the vagaries of load-shifting and transmission, however...
- Gibbon1 8y agoThink about it this way 3000 MW X 30 years X 8766 hr/year = 7.88X10^11 kwhr. So $1.6B/7.88X10^11kwhr is $0.002/kwh
- patrickg_zill 8y agoThat requires a 24x7 100% utilization level. Which is not reasonable if we are talking about wind or solar power. I think that the max power of the farm is 800 MW, so peak utilization would be about 25%, unless more capacity were to be added in some fashion.
- deleted 8y ago[deleted]
- Retric 8y agoYou don't just move power from a single farm for 30 years using just that line. Reality is end up with a network of these lines at various utilization numbers. But, an average of say 60% seems achievable which would put you at around 0.33 cents per kWh over 1000 miles. Now specifics becomes a rather complex geometry problem as the US is mostly above the equator etc, but it does show you can shift power more than 1 hour for under 1 cent per kWh which makes this cheaper than storage.
- Gibbon1 8y ago> That requires a 24x7 100% utilization level Not really here nor there, the calculation is just gives one an idea where the decimal point is.