4
Electrical energy from wind power; Electrical energy from solar power; Electrical energy from renewable sources; Electrical energy from non-renewable sources
37
Construction of geothermal energy installations; Power infrastructure construction; Except services relating to transport infrastructure
39
Distribution of energy; Supply of electricity; Electricity distribution; Information and advisory services in relation to the distribution of energy
40
Generation of electricity from wind energy; Production of hydroelectric power; Generation of electricity from geothermal energy; Production of electrical power from renewable sources; Generation of electricity from solar energy; Generation of electricity from wave energy; Production of energy by power plants; Consultancy services relating to the generation of electrical power; Rental of equipment for the treatment and transformation of materials, for energy production and for custom manufacturing
42
Design and development of software for control, regulation and monitoring of solar energy systems; Energy auditing; Consultancy in the field of energy-saving; Advisory services relating to the use of energy; Technological consultancy in the fields of energy production and use; Development of energy and power management systems; Technological consulting services in the field of alternative energy generation; Consultancy relating to technological services in the field of power and energy supply; Technological analysis relating to energy and power needs of others; Conducting research and technical project studies relating to the use of natural energy; Engineering services in the field of energy technology; Engineering services in the field of electrical power and natural gas production; Except services relating to transport infrastructure