04
Electrical energy; electrical energy from solar power;
electrical energy from wind power; electrical energy from
renewable sources; electricity; biofuels
37
Installation of solar powered systems; exploitation of
natural resources including oil, gas, coal, water for
generation of energy and related products; installation of
machines for production of electricity; installation of
generators for production of electricity; construction and
installation of production facilities, plants and buildings;
construction advisory services; installation of industrial
plants; maintenance services for industrial plants;
construction information; rental of construction and
building equipment; building repair services; repair or
maintenance of power generators; building maintenance and
repair; repair services for electricity generators and wind
turbines
39
Distribution of energy; supply of electricity; storage of
electricity; supply and distribution of electricity;
distribution and transmission of electricity
40
Generation of power; generation of electricity from solar
energy; energy production; leasing of energy generating
equipment; processing and refining of oil, gas, natural
energy sources and fuels for the production of energy and
electricity, cold, heat, air and water; electricity
generation; generation of gas and electricity
42
Research in the field of energy; consultancy in the field of
energy-saving; advisory services relating to the use of
energy; advisory services relating to energy efficiency;
developing of integrated energy concepts; professional
consultancy relating to the conservation of energy;
certification services for the energy efficiency of
buildings; technological consulting services in the field of
alternative energy sources; professional consultancy
relating to energy efficiency in buildings; recording data
relating to energy consumption in buildings; drawing of
architectural site plans and blue-prints of structure;
engineering services for the design of structures; technical
consultancy services relating to structural engineering;
engineering services for the analysis of structures
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