UK Faces Energy Strain During Winter 'Dunkelflaute'

Low wind speeds and freezing temperatures test Britain's energy system, exposing vulnerabilities in gas storage and renewable reliance.

A combination of freezing weather and low wind speeds, known as a 'dunkelflaute,' caused a significant strain on the UK's energy grid this week, pushing electricity demand to 50GW, above predicted levels.
Wind power output dropped to 3GW, far below its 30GW capacity, while solar energy production ceased after sunset, highlighting the intermittency of renewables during winter.
Natural gas, which provided 25GW of electricity at peak demand, remains the backbone of the UK's energy system, but reserves are critically low, with only a week's supply available in storage.
The UK's reliance on imported gas, particularly from Norway and liquefied natural gas (LNG) shipments, leaves it vulnerable to supply disruptions and global market competition for resources.
Experts and policymakers stress the urgent need for long-term energy storage solutions and expanded gas reserves to ensure future energy security as the country transitions to net zero by 2030.