4
Electrical energy from renewable sources; Electrical energy; Electrical energy from solar power; Electrical energy from wind power; Electrical energy from non-renewable sources
37
Installation of power generating apparatus; Installation of energy-saving apparatus; Installation of residential solar panel power systems; Installation of non-residential solar panel power systems; Repair of energy production plants and machines; Repair of power generating apparatus and installations; Repair of energy supply installations; Maintenance and repair of energy generating installations; Servicing of power generating apparatus and installations; Maintenance of power generating apparatus and installations; Installation of electrical and generating machinery
39
Electricity supply and distribution; Providing information relating to the distribution of electricity; Supply of electricity; Electricity distribution; Distribution of electricity to households; Distribution and transmission of electricity; Consultancy services relating to the distribution of electricity; Storage of electricity; Information and advisory services in relation to the distribution of energy; Storage of energy and fuels; Distribution of renewable energy; Distribution of energy
40
Electricity generating; Generation of electricity from solar energy; Energy production; Consultancy services relating to the generation of electrical power; Leasing of energy generating equipment; Generation of power
42
Design and development of regenerative energy generation systems; Computer programming for the energy industry; Research in the field of energy; Energy auditing; Engineering services relating to energy supply systems; Consultancy in the field of energy-saving; Professional consultancy relating to energy efficiency in buildings; Professional consultancy relating to the conservation of energy; Programming of energy management software; Advisory services relating to the use of energy; Advisory services relating to energy efficiency; Consultancy relating to technological services in the field of power and energy supply; Recording data relating to energy consumption in buildings; Technological consulting services in the field of alternative energy generation; Technical advice in connection with energy-saving measures; Engineering services in the field of energy technology; Technological analysis relating to energy and power needs of others; Technological consultancy in the fields of energy production and use; Provision of information concerning research and technical project studies relating to the use of natural energy; Providing technical advice relating to energy-saving measures; Conducting research and technical project studies relating to the use of natural energy; Rental of meters for the recording of energy consumption; Development of energy and power management systems; Design and development of software for control, regulation and monitoring of solar energy systems; Computer hardware development; Design and development of energy management software