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Fix the energy market
Draft

Zonal Marginal Pricing

A wholesale architecture in which electricity is priced within geographic bidding zones, inter-zonal congestion affects market prices and residual internal congestion is managed through redispatch.

Solution section

Capacity & Adequacy

How resource adequacy and investment sufficiency are addressed.

Capacity & Adequacy

There is no single capacity design intrinsic to zonal pricing.

Different jurisdictions combine zonal energy markets with different adequacy arrangements, including:

  • capacity markets;
  • strategic reserves;
  • reliability reserves;
  • energy-only approaches;
  • long-term contracts.

Capacity design must therefore be assessed separately from the zonal pricing concept itself.