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POWER: French Nuclear Modulation May Lead to More Unplanned Outages: Kpler

POWER
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Modulating the power output of French nuclear reactors to meet electricity demand could lead to more unplanned outages, according to a report by consultancy Kpler, cited by Montel.
• Modulation increases wear and tear, potentially leading to higher maintenance costs and a greater risk of unplanned outages, Kpler added.
• While modulation helps stabilize the grid, it stresses reactor systems and wastes fuel, raising costs.
• Additionally, the report noted that modulation increased in 2024, showing a 10-12% load factor difference during peak solar hours and evenings, resulting in an average daily ramp-down of 4GW – due to the growth of renewable energy and power price volatility.
• EdF suspended nuclear reactors for modulation several times this year, primarily in summer, and warned of upcoming modulation outages in December.

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Modulating the power output of French nuclear reactors to meet electricity demand could lead to more unplanned outages, according to a report by consultancy Kpler, cited by Montel.
• Modulation increases wear and tear, potentially leading to higher maintenance costs and a greater risk of unplanned outages, Kpler added.
• While modulation helps stabilize the grid, it stresses reactor systems and wastes fuel, raising costs.
• Additionally, the report noted that modulation increased in 2024, showing a 10-12% load factor difference during peak solar hours and evenings, resulting in an average daily ramp-down of 4GW – due to the growth of renewable energy and power price volatility.
• EdF suspended nuclear reactors for modulation several times this year, primarily in summer, and warned of upcoming modulation outages in December.