4
Electrical energy; Electrical energy from renewable sources; Electrical energy from wind power; Electrical energy from solar power; Electrical energy from non-renewable sources
35
Procurement of contracts concerning energy supply; Assistance and consultancy services in the field of business management of companies in the energy sector
39
Distribution of energy; Distribution of renewable energy; Information and advisory services in relation to the distribution of energy; Storage of energy and fuels
40
Energy production; Clean energy production; Production of renewable green energy; Production of electrical energy from renewable sources; Generation of electricity from wind energy; Generation of electricity from solar energy; Generation of electricity from wave energy; Generation of electricity from geothermal energy
42
Design and development of energy distribution networks; Design and development of energy management software; Programming of energy management software; Computer programming for the energy industry; Conducting research and technical project studies relating to the use of natural energy; Technological consulting services in the field of alternative energy generation; Providing technical advice relating to energy-saving measures; Design and development of regenerative energy generation systems; Advisory services relating to the use of energy; Research in the field of energy