France copes with high power demand on nuclear supply ramp-up

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Paris city lighting as energy inflation bites

PARIS (Reuters) – France on Monday avoided a strain on its power grids in the face of rising demand as Paris recorded sub-zero temperature, thanks to a ramp-up in supply in nuclear as well as hydro power and strong imports from neighbouring countries.

Demand rose above 80 gigawatts (GW) during peak morning hours for the first time this winter, according to a spokesperson for RTE, the country’s transmission system operator.

France’s nuclear availability was able to supply above 40 GW as its plants returned to levels last seen in early March over the weekend. That combined with more than 15 GW of hydropower accounted for over 75% of the total supply.

Imports totalling 8.6 GW from Germany, Belgium, Switzerland, Italy and Spain also helped support peak demand at 0900 GMT, while France was able to export about 1.7 GW to Britain, RTE data showed.

The French transmission system operator has pretty comfortable margins so far, Emeric de Vigan, vice president of power at data and analytics firm Kpler, said in a tweet.

Intraday markets are trading 100 euros per megawatt hour (MWh) below day-ahead prices, which were already low, he said.

Nuclear operator EDF ramped up output at three nuclear reactors on Friday following repairs and said it hopes to start fixing stress corrosion issues at its Penly 2 reactor in mid-January.

The operator has faced an unprecedented number of outages at reactors this year due to a delayed maintenance schedule and stress corrosion, reducing nuclear output to 30-year lows, just as Russia’s war on Ukraine hit Europe’s energy supplies.

(Reporting by Forrest Crellin, editing by Silvia Aloisi and Arun Koyyur)

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