Capacity sales through Implicit Allocation

We may offer for sale up to a maximum of 50% of IUK's technical capacity through implicit allocation. Currently, annual, seasonal and quarterly unbundled capacity products may be offered via this mechanism.

Implicit allocation will run when the CAM NC Auctions are not taking place on PRISMA. A three month forward view of sales dates via this mechanism is published here.

The IA Guidance Document provides details of the capacity products which may be made available.

Partner and platform

IUK has capacity to offer to the market but not gas. Therefore we have teamed up with a partner that offers and allocates gas products to the market, enabling the sale of IUK capacity via an implicit allocation mechanism. The ability to purchase IUK capacity through implicit allocation is dependent on securing a matching quantity of natural gas.

HPC SA is IUK's Implicit Allocation Partner, and they will use the PleXHub platform to advertise capacity made available through implicit allocation. These slides provide more information.

Capacity price

Products offered via the Implicit Allocation mechanism will have a fixed price, which will be published in the IUK Charging Statement in advance of the gas day on which the capacity is offered.

Quantity of capacity available for purchase

The quantity of capacity being made available for sale through implicit allocation is available here and should be considered up to date until replaced. This includes information on the amount of capacity that has been sold via this mechanism. 

The below graph will be updated when capacity is sold via implicit allocation.