Transition from P415 to P510 explained
With P510 proposed as an update to P415, the landscape of behind-the-meter (BtM) revenue stacking for asset owners across the GB market is set to change once again. As traded volumes from flex assets and Virtual Trading Parties (VTPs) increase, the limitations of the current mutualised compensation structure under P415 have become apparent, particularly its inability to incentivise demand turn-up during periods of abundant, negative-priced renewable generation.
In this video, we explore the shift from P415 to P510 and how this proposed modification addresses the shortcomings of current flexibility arrangements. We look at why P415’s mutualised pot fails to account for upward deviations and how this risks inflating consumer electricity costs through the rebound effect. You will learn how P510 introduces a bilateral compensation structure between suppliers and VTPs, enabling true bi-directional flexibility to properly incentivise load shifting during low or negative wholesale price periods.
We also demonstrate how you can test these dynamics and potential solutions in Gridcog. Using a small industrial site in North Wales as a baseline, we analyse the month of March 2026 by adding a 1 MW 2-hour battery to assess wholesale market value. We model the financial impact of shifting from the disproportionately high revenues of P415—earning around £92k per MW per year—to the fairer, market-based value of £22k per MW per year under P510. Watch how the platform's inter-asset flow feature allows energy flows to be priced separately, helping you accurately forecast and optimise your business case.
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