Jacob Mays
@jacobmays.bsky.social
Assistant Professor, Cornell Civil and Environmental Engineering, working on energy systems and decision making under uncertainty. Tweeting in a personal capacity.
That should say "Revisiting" instead of "Rethinking"
August 20, 2025 at 9:52 AM
That should say "Revisiting" instead of "Rethinking"
Can you expand on this?
July 16, 2025 at 5:39 AM
Can you expand on this?
If years left pre-tenure are greater than years of eligibility remaining, seems better to wait?
May 31, 2025 at 10:42 PM
If years left pre-tenure are greater than years of eligibility remaining, seems better to wait?
Due to the lower wholesale prices, seems like it would slightly increase the cost of other procurement. So the effect on the mix depends if you think the additional cost would change the quantity procured in those auctions.
May 29, 2025 at 9:17 PM
Due to the lower wholesale prices, seems like it would slightly increase the cost of other procurement. So the effect on the mix depends if you think the additional cost would change the quantity procured in those auctions.
I think the 6 GW is probably irrelevant in this case--need to know what was available specifically in zone 6 on this map. I agree that the system should be planned in a way that enables operation without both nuclear plants, but I think we'll need to wait for the MISO report to learn more.
May 28, 2025 at 8:58 AM
I think the 6 GW is probably irrelevant in this case--need to know what was available specifically in zone 6 on this map. I agree that the system should be planned in a way that enables operation without both nuclear plants, but I think we'll need to wait for the MISO report to learn more.
Still accurate to say they “played a role,” since their absence almost certainly contributed to reserve shortage in that zone.
May 28, 2025 at 12:06 AM
Still accurate to say they “played a role,” since their absence almost certainly contributed to reserve shortage in that zone.
Do you have data on LCOE for balcony solar? Seems like it might be competitive.
May 7, 2025 at 3:58 PM
Do you have data on LCOE for balcony solar? Seems like it might be competitive.
The basic idea is summarized in the abstract here:
April 3, 2025 at 6:01 PM
The basic idea is summarized in the abstract here:
I think it makes sense for the dual to be zero if non-binding or the penalty if binding. If that doesn’t accurately reflect the nature of the penalty, could model piecewise constant or piecewise linear slacks to get a smoother price outcome.
January 23, 2025 at 12:48 AM
I think it makes sense for the dual to be zero if non-binding or the penalty if binding. If that doesn’t accurately reflect the nature of the penalty, could model piecewise constant or piecewise linear slacks to get a smoother price outcome.
Yep, the tax is embedded in the offers of emitting suppliers.
January 21, 2025 at 10:10 PM
Yep, the tax is embedded in the offers of emitting suppliers.
What are they assuming the differences would be between "Public SMR" and "Private SMR"?
January 20, 2025 at 6:59 PM
What are they assuming the differences would be between "Public SMR" and "Private SMR"?
I'm about to start a project on reserve deliverability, reading recommendations are welcome.
January 16, 2025 at 8:00 PM
I'm about to start a project on reserve deliverability, reading recommendations are welcome.
Unfortunately we're having some trouble there as well: www.utilitydive.com/news/nyserda...
NYSERDA, Clean Path NY developers terminate contracts underpinning 175-mile transmission line
Clean Path NY developer Forward Power says it “remain[s] committed to New York’s energy transition” despite the loss of the project’s renewable energy credit purchase and sale agreement.
www.utilitydive.com
January 5, 2025 at 2:20 PM
Unfortunately we're having some trouble there as well: www.utilitydive.com/news/nyserda...
Framing it slightly differently, what’s the cost multiplier for a nuke (or anything, really) sited in downstate New York as opposed to, e.g., Georgia?
January 5, 2025 at 12:14 AM
Framing it slightly differently, what’s the cost multiplier for a nuke (or anything, really) sited in downstate New York as opposed to, e.g., Georgia?
But there are related modeling challenges that are not easy to address, e.g., fuel inventory for dual-fuel units.
December 31, 2024 at 4:42 PM
But there are related modeling challenges that are not easy to address, e.g., fuel inventory for dual-fuel units.
I don't think anyone explicitly separates fuel delivery issues from other causes of generator unavailability. With decent methodology (e.g. PJM after recent reforms) it gets incorporated to the extent it shows up in historical data.
December 31, 2024 at 4:41 PM
I don't think anyone explicitly separates fuel delivery issues from other causes of generator unavailability. With decent methodology (e.g. PJM after recent reforms) it gets incorporated to the extent it shows up in historical data.
Agreed that it's hard to argue with in principle, but I am not familiar enough with the details of implementation to say how effective they have been in practice.
December 23, 2024 at 11:26 AM
Agreed that it's hard to argue with in principle, but I am not familiar enough with the details of implementation to say how effective they have been in practice.
Right--@electronecon.bsky.social is referring to U.S. utilities with fuel adjustment clauses that shield the utility from fuel price volatility, necessitating regulatory intervention if you want to try to restore better incentives for hedging.
December 23, 2024 at 9:24 AM
Right--@electronecon.bsky.social is referring to U.S. utilities with fuel adjustment clauses that shield the utility from fuel price volatility, necessitating regulatory intervention if you want to try to restore better incentives for hedging.