Enel SpA (Enel) is an integrated electricity and gas company. It produces, transports and distributes electricity, and sells and trades electric energy and natural gas, green certificates, and CO2 emission rights. The company generates power using hydro, wind, nuclear, geothermal, solar, thermoelectric, and other renewable sources at its coal-fired, fuel-oil and turbo-gas plants, combined-cycle plants, and nuclear plants. Enel delivers energy in regulated and free markets, and to end users. It also provides advanced energy services and operates in the electric mobility sector.