Great Britain is forecast to pay some of Europe's highest energy costs this winter as it relies on imports to meet demand, according to energy system operators.

The country will have sufficient gas and electricity supply over the coldest months, officials said. However, this security comes at a price. Energy operators indicated Britain will need to pay higher market rates than neighbouring European markets to secure those imports.

The forecast reflects deepening reliance on imported energy to balance supply and demand during winter months when consumption peaks. Official projections show the country meeting its energy needs primarily through purchasing power in competitive markets rather than domestic generation capacity.

The Guardian reported the assessment from energy system operators responsible for maintaining Britain's power and gas infrastructure.