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Redeia Corporación, S.A., known as Redeia, is a prominent operator in the power sector primarily involved in electric power transmission and system management of transmission networks in Spain and internationally. Established in 1985, the company operates under the ticker symbol RED on the Madrid Stock Exchange. Redeia's primary objective is to ensure efficient and reliable operation and development of the national electricity system, providing critical infrastructure for energy distribution.

Constellation Energy spun off from Exelon in 2022 and is now the largest US independent power producer. After acquiring Calpine in 2026, Constellation owns 55 gigawatts of power generation capacity. Constellation is the largest nuclear plant owner in the US with 22 GW of nuclear power generation capacity in six states. It also owns 4 GW of renewable energy projects. Constellation's retail energy business serves 2.5 million customers.