37
Construction services; Installation and repair services relating to power plants; Construction, installation, maintenance and repair of power plants, power plant machinery and energy generation installations, facilities, equipment and machinery; Maintenance and repair of power generators, repair and maintenance of energy generating installations, maintenance of energy installations; maintenance and repair of renewable energy sources; maintenance and repair of renewable energy installations; maintenance and repair of lines and equipment used in the electric transmission of energy sources; information, consultancy and advisory services relating to all of the aforesaid services
40
Generation of energy; energy generation services; operation of power plants, power plant machinery and energy generation installations, facilities, equipment and machinery for others; Operation of energy sources, operation of renewable energy sources, operation of energy installations, operation of electric transmission lines for energy sources; operation of equipment used in connection with the transmission of power through energy lines; information, consultancy and advisory services relating to all of the aforesaid services