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As part of the fight against climate change, CCGS technology (Carbon Capture and Geological Storage) is considered to be a necessary solution for lowering CO2 emissions caused by human activities. Unlike photovoltaic systems, which can lose 80 % of their power in a matter of seconds during periods of cloud cover, thermodynamic solar plants have a thermal inertia that curbs intermittent production .

The Note 29 1 2 of Chapter 20 in the 2014 Reference Document sets out the provisions related long-lived medium and high-level waste for which a reversible storage facility in deep geological layers called Cigéo project is planned by the French Law of June 28 2006. Since 2005, the gross cost and forecasted expenses schedules for the Cigéo project have been based on a scenario of industrial geological waste storage, following conclusions presented in the first half of 2005 by a working group formed under the supervision of the French State involving representatives of the relevant administrations, Andra and the producers of waste (EDF, AREVA, CEA).

A storage solution for each type of waste... The most radioactive 10 % of waste is currently conditioned in stainless steel containers and placed in intermediate storage at Orano's La Hague plant (waste derived from the processing of spent fuel). Given its half-life, the law stipulates the transfer of these containers to the Industrial Centre for Geological Disposal (Cigéo).