Britain faces the prospect of losing up to £250 billion in economic growth over the next decade if it fails to address persistently high energy costs, according to a report by PwC. This shortfall represents roughly 8 percent of the country’s current gross domestic product. The consultancy highlights that elevated industrial electricity prices are eroding the UK’s competitiveness and limiting expansion prospects across various sectors.

The report attributes the high cost of electricity in part to the UK’s dependence on imported energy and the marginal pricing system, where gas prices largely determine power costs. This structure has resulted in the UK having the highest electricity prices among G7 nations, which include France, Germany, and the United States. Additionally, a significant portion of UK electricity bills is made up of policy-related charges, such as subsidies for renewable energy and grid upgrades.

Since the Russian invasion of Ukraine, wholesale gas prices have surged, further exacerbating the gap in energy costs between the UK and its major economic peers. The report notes that this disparity peaked at 63 percent in 2024. Investor sentiment reflects these challenges, with around half citing energy expenses and infrastructure planning as primary areas needing improvement for future economic security and growth.

Industry voices echo the concern. A survey by Make UK, an industry lobby group, found that a quarter of British manufacturers have already relocated some operations abroad or are considering it due to uncompetitive energy costs. Nine percent have begun outsourcing production overseas, with another 16 percent contemplating similar moves.

PwC points particularly to energy-intensive industries as those poised to gain the most from lower costs. However, emerging technology firms and data centers, which also consume significant power, are expected to become increasingly important contributors to the economy. Simon Oates of PwC UK emphasized that addressing electricity prices could unlock more than £250 billion in economic value.

The report urges the government to spearhead a comprehensive national energy strategy developed jointly with businesses and investors, one that evaluates the country’s evolving energy needs and how to meet them effectively. PwC identifies the current energy crisis—driven by the conflict in the Middle East—as a critical turning point. Vicky Parker of PwC UK warned that failing to act now would represent a missed opportunity.

Among policy recommendations, the report suggests reallocating some of the levies on electricity bills to better balance long-term energy security goals with immediate affordability. Oates also advocated for a regulatory reset, noting that current frameworks often view regulation through a narrow affordability lens, which overlooks the broader challenge posed by price volatility.

Improved coordination between regulators, particularly concerning environmental and planning policies, could enhance business confidence and stimulate greater investment, the PwC study added.

In response, the Department for Energy Security and Net Zero emphasized the need to transition away from fluctuating fossil fuel markets toward clean, domestically produced energy. The department highlighted initiatives such as the British Industrial Competitiveness Scheme, which aims to reduce electricity costs by up to 25 percent for over 10,000 manufacturing firms.