Implicit Allocations

Implicit Allocation Mechanism (IAM) is a method to sell unbundled transmission capacity which is combined with an equivalent quantity of gas outside the PRISMA auction calendar. The key benefit of implicit allocation is that it allows shippers to get the exact needed transmission capacity allocated based on their gas commodity opportunity which they want execute at times outside the Prisma auction calender. BBLC is allowed to offer up to a maximum of 75% of BBL’s technical capacity through implicit allocation. IAM as a second capacity allocation mechanism is available from 2 July 2019.

  • Sold via specific implicit allocation process; via broker and platform
  • Capacity offered besides the regular ENTSOG auction calendar (i.e. PRISMA)
  • Guaranteed firm capacity
  • Annual, seasonal, quarterly and monthly basis
  • Flows from UK to NL and from UK to NL

The IA calendar FFRF shows a rolling overview of IAM sales dates per product.

BBLC’s IAM partner is Cavendish Markets with products offered on PleXhub.

Shippers who wish to buy transmission capacity through IAM must:

  • Accept the BBL Company General Terms & Conditions
  • Conclude a contractual agreement with Cavendish Markets BV
  • Obtain access to the PleXhub platform

For further information or concluding a contractual agreement with Cavendish Markets BV please contact Cavendish Markets by sending an email to: or calling +44 (0) 207 073 2621.

BBLC capacity products offered via IAM will have the same reserve tariff as products auctioned on the PRISMA platform. Information on tariffs can be found in the tariff section of our website.

Annual, seasonal, quarterly and monthly unbundled capacity products will be made available for a maximum of the next 8 gas years, 8 seasons, 8 quarters and 8 months. All information can be found on the IA calendar FFRF.

Do you see opportunities?

Become a BBL shipper