Energy · Field notes
Capacity and flexibility field notes
For how capacity and flexibility is procured, read the sector guide: How capacity markets pay: the price applies only to the share of a unit the market counts.
Capacity and flexibility · Programme
PJM’s capacity auction: a battery’s shortfall charges can exceed its capacity paymentsWhat a battery takes on when it clears PJM’s capacity auction: emergency delivery, charges set by Net CONE, the yearly stop-loss and late-build charges.
Capacity and flexibility · Field note
In the Irish and Northern Irish T-4 auction for 2029/30, ending a new-build award costs more the later it happensIn the all-island T-4 for 2029/2030 the offer, not qualification, bound new capacity; the charge on a terminated award rises in steps towards delivery.
Capacity and flexibility · Field note
Great Britain’s LDES cap and floor: winning an award does not fix what the floor is worthOfgem’s LDES cap and floor: why a window 1 award leaves the floor rate and availability target open, how support can be withdrawn, and what projects bid.
Capacity and flexibility · Field note
One battery, three capacity markets: how much of it countsBritain, Belgium and Italy pay capacity prices on different shares of a battery; in Italy’s 2028 auction a new one counts for less than a contracted one.