A report by the UK Conservatives holds out the prospect of substantially lower electricity prices. A fact check identifies ten fundamental errors in argumentation and data use. At its core are incomplete cost comparisons, misunderstandings of market mechanisms and oversimplified conclusions about the role of renewable energy.
Wholesale price is not the retail price
The report mixes wholesale and household prices. household electricity comprises several components: generation, network charges, system services, taxes and levies, and retail margins. Looking only at the wholesale market underestimates network and policy charges and distorts the overall picture.
Network and system costs omitted
Security of supply requires transmission and distribution networks, storage, reserves and balancing services. This infrastructure remains essential even as weather-dependent generation increases. If these items are not taken into account, prices appear artificially low.
Renewables scapegoated
Portraying renewables as driving up prices is overly simplistic. Investment costs for wind and solar have fallen significantly. Short-term market prices fluctuate, but over the longer term renewable capacity reduces reliance on imported fuels and helps stabilise generation costs.
Price risks of fossil fuels underestimated
Gas-fired generation ties electricity prices to international commodity markets. Volatile gas prices explain many price spikes. Greater dependence on fossil fuels shifts these risks onto consumers — a point often missing from narrow calculations.
International comparisons without a common basis
Country comparisons are meaningful only when taxes, levies, network charges and subsidies are presented on a harmonised basis. Different support schemes, network structures and state levies distort seemingly simple price rankings.
Support mechanisms presented superficially
Feed-in tariffs, contracts for difference and project-specific models are often labelled as pure subsidies. In reality, many instruments are designed to achieve economies of scale, lower capital costs and investment certainty — foundations for affordable, low-emission generation.
Investment and lifecycle costs confused
High upfront investments for wind, solar or nuclear differ markedly from costs over an asset's lifetime. Considering only construction costs does not provide a reliable picture of economic performance over decades.
Security of supply inadequately considered
Low prices mean little if the system is not stable. Dark doldrums, bottlenecks and outages generate high follow-up costs. Reserve capacity, storage and network expansion are part of the total cost of delivering cheap and secure electricity.
Optimistic or selective assumptions
Model outcomes depend on assumptions about fuel prices, technology pathways and deployment rates. Selectively favourable parameters create misleading expectations. Robust assessments use multiple scenarios and transparent assumptions.
A price agenda without a climate pathway
Short-term bill relief helps households, but energy policy determines long-term emissions pathways, import dependence and climate risks. Measures that ignore decarbonisation can lead to higher future costs from climate damages or expensive retrofits.
Assessment
Debate about electricity prices requires full cost accounting, realistic assumptions and clear transparency about which components, time horizons and model parameters are being compared. Those promising price reductions must account for network costs, the price volatility of fossil fuels, investment cycles and security of supply as well as the goals of climate neutrality.