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Maguire: France's nuclear and solar power output is on the rise.

France's energy producers have raised clean energy production to six-year-highs this year. They've generated 95% of the country's electricity from clean sources, which is far more than any other European nation.

Solar power generation was at a record high and nuclear power production reached its highest level since 2019.

France's ability to maintain growth in clean energy despite lower hydro- and wind-power output shows the resilience of France’s power system. This contrasts with recent declines in clean power production across Europe.

LSEG data shows that France's high energy production levels has also resulted in some of the lowest wholesale electricity prices in mainland Europe. These have been around 25 to 35 percent lower than rival nations such as Germany and Italy so far this year.

The combination of a durable growth in clean energy and power prices below average highlights the importance of France’s energy sector as part of Europe's interconnected energy system. France is a key player within this system because it exports power.

NUCLEAR DEPENDENCE

France's nuclear fleet, which includes more than 50 reactors, is the backbone of the nation's power generation system. It accounts for about 70% of France's electricity.

The country's nuclear reactors, some of which are over 40 years old, require complex and expensive maintenance.

Warm river temperatures in the summer can affect other reactors, limiting their output potential. They may also pose operational risks when there is not enough cooling available to regulate fuel rod temperatures.

France's energy firms have increased the generation capacity of alternative power sources to reduce its dependence on nuclear power. They also closed outdated nuclear power plants.

According to the energy think tank Ember, this has led to a decline in the share of nuclear power in total power generation from 45% in 2018 to 39% by 2024.

Solar and wind farms are the fastest growing sources of power generation and account for 30% of total generating capacity. Hydro plants are responsible for 16% of the total, gas plants for 12%, and bioenergy plants for 2%.

CLEAN COMMITMENT

France's energy firms have reduced coal-fired capacity by nearly half since 2019, while gas-fired capacity has remained largely unchanged.

Ember data reveals that the country's electricity firms have nearly doubled their bioenergy plant capacities and increased hydropower capacity in the last five years.

The French power system, which is based on a reduction of nuclear power while increasing its non-nuclear energy sources, has been able to maintain its clean status as the most environmentally friendly among major economies.

In April, France's electricity system generated almost 98% of its power from clean sources. This is the cleanest monthly share since mid-2024.

This clean power share is compared to 65% for the United Kingdom, 60 % in Germany, and 64% in Europe. France is the clear leader in clean power in the region.

Price Impact

France's electricity costs are among the lowest in Europe thanks to the increase of 17% in clean energy capacity since 2019.

According to LSEG, France's spot base wholesale power costs in 2025 have averaged around 73 Euros ($82) per Megawatt Hour (MWh).

LSEG data show that the average power price in Germany is around 98 Euros/MWh, 107 Euros/MWh for Poland and 125 Euros/MWh for Italy.

These steep discounts on power prices to regional competitors have given French power firms a competitive edge in Europe's interconnected markets for power, since they can export surplus power profitably.

France's cleaner power base is now available to power importers who rely primarily on fossil fuels. These are the opinions of the columnist, who is also an author. ($1 = 0.8863 euros)

(source: Reuters)