Rethinking Constraint Costs in the UK Energy System

Constraint costs – the charges that arise when we pay to turn off wind power and switch on gas because grid lines are overloaded – are fast becoming one of the most pressing issues in the energy debate.

And the numbers speak for themselves. In 2023, balancing the UK electricity system cost £1.7 billion. By 2030, this figure could rise to £8 billion every year.

This is a paradox of progress. The rapid growth of renewables is a success story we should celebrate. But the pace of that growth is outstripping the ability of our electricity grid to keep up – and the result is higher costs passed on to consumers.

Building more grid infrastructure is essential for the long term. But we cannot afford to wait. Without near-term changes to the way our energy market operates, constraint costs risk becoming a lightning rod for public opposition to clean power – when we should be accelerating its adoption.

At GLEG, we believe the challenge is clear: unlocking a smarter, more flexible energy system that keeps costs down and supports the transition to net zero. For more information contact us at hello@gleg.co.uk.