04
Electrical energy; electrical energy from solar power;
electrical energy from wind power; electrical energy from
renewable sources; biofuels
07
Uninterruptible power supplies [machines] for the generation
of electrical energy; wind-powered electricity generators;
electrical generator stations; generators of electricity;
power installations [generators]
37
Oil-field exploitation for the extraction of oil;
installation of machinery for generating electricity;
erecting manufacturing plants; installation of plant; civil
construction services; construction information;
installation of industrial plant; maintenance services for
industrial plants; rental of construction equipment;
building repair; repair or maintenance of power generators;
building maintenance and repair; repair services for
electric generators and wind turbines
39
Distribution of energy; electricity distribution; storage of
electricity; electricity supply and distribution;
distribution and transmission of electricity
40
Generation of power; energy production; leasing of energy
generating equipment; refining services; electricity
generating; generation of gas and electricity
41
Education; news reporters services; writing of texts, other
than publicity texts; services for the publication of
newsletters; publishing services; issue of publications;
publication of educational books; publication of newspapers;
publication of printed matter; publication of leaflets;
publication of texts; publishing of reviews; publication of
books; publication of printed matter and printed
publications; publishing services for books and magazines;
providing on-line electronic publications, not downloadable
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 generation; professional consultancy
relating to energy efficiency in buildings; energy
monitoring services for others namely recording the level of
use and control of electricity used in buildings;
construction drafting; 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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