Curtailment & Constraint Calculator
Estimate lost revenue from grid curtailment and constraints for renewable energy projects
Grid constraints cost GB consumers over £1.5 billion in 2024/25 in constraint payments. Projects in congested zones — particularly Scotland — face significant curtailment risk that directly impacts revenue and investment returns. This calculator helps developers and investors quantify that risk.
Step 1 Project Details
Offshore ~40%, Onshore ~28%, Solar ~11%
Step 2 Grid Connection
Step 3 Revenue Assumptions
CfD strike price, PPA price, or merchant assumption
% of lost revenue compensated (CfD = 0%, some PPAs offer partial)