On September 9, 2026, the Energy Regulation Commission (CRE), led by Emmanuelle Wargon, published a detailed report on the total cost of France’s electricity system for the year 2025. The report found that the overall cost of the system reached 56 billion euros, with 40 billion euros going toward electricity production and 16 billion euros toward maintaining and operating the electrical grid. Of this total, nearly 78 percent is ultimately passed on to consumers through their electricity bills. The report highlights a complex relationship between renewable energy and overall system costs. Renewable energy sources, such as solar and wind power, have significantly reduced the wholesale price of electricity, offering consumers annual savings of nearly 8 billion euros. However, these savings come at a cost to the electricity system and the state budget, which has borne about 3 billion euros in additional expenses. These costs are linked to the need for long-term support contracts during the construction of renewable projects, as well as the requirement for more robust and decentralized electrical networks to accommodate the intermittent nature of solar and wind power. Despite these added costs, the overall balance still benefits consumers. The shift toward renewable energy has also introduced greater volatility into the electricity market, particularly affecting EDF, France’s largest electricity producer and operator of nuclear power plants. As renewable sources generate electricity more unpredictably, EDF has had to adjust its operations, running its nuclear plants less frequently to match fluctuating demand. This has led to a decline in revenue from its nuclear power plants, especially during periods when electricity prices drop to negative levels—meaning producers are effectively paid to generate power. According to Les Echos, the CRE may have revised its report during the summer to more clearly illustrate the impact of renewable energy on non-subsidized producers like EDF. The CRE has denied altering its conclusions, but the French Energy Ministry confirmed that discussions had occurred between the commission and government officials. The findings of the report could influence the country’s future energy strategy, potentially shaping whether France continues to rely heavily on nuclear power or moves toward a more diversified energy mix that includes a growing share of renewables. The CRE estimates that solar and wind power could still expand by 50 percent before the increased system and state costs surpass the savings achieved through lower electricity prices.