Imports of electricity into the UK hit a three year low last month but were offset by increased domestic wind, coal and gas-fired power generation.

The situation arose in September due to outages on the French and Dutch interconnectors restricted supply.
UK interconnectors
Platts reported that total electricity imports fell to 1.1 TWh, the lowest recorded since February 2013 when imports were 1 TWh. At the same time last year, total imports reached 1.95 TWh.

The 2 GW UK-France Interconnector was running at half its capacity between September 19-30, and is currently undergoing a planned outage, which began on October 3 for 19 days, National Grid said.

Also in September, the 1 GW Dutch-UK BritNed interconnector operator reduced the link’s supply to zero for the annual planned maintenance outage, which started on September 19 and ended on September 21.

Several maintenance outages also reduced nuclear power supplies to 5.72 TWh in September from 5.86 TWh in August, Platts data showed.

Despite the aforementioned events, wind power production rose on the month to 1.73 TWh in September, which was more than 36 per cent higher than 1.27 TWh recorded during the same month last year.

Coal-fired power generation recovered from record lows seen in August to rise to nearly 1 TWh in September, but tumbled 76.6 per cent below last year’s levels.