OX2

Electrical energy; electrical energy from solar power; electrical energy from wind power; electrical energy from renewable sources; electricity; biofuels

Uninterruptible power supplies [machines] for the generation of electrical energy; wind-powered electricity generators; electrical generator stations; generators of electricity; power installations [generators]

Assistance and consultancy services in the field of business management of companies in the energy sector

Financial consultancy in the energy sector; consultancy concerning financing of energy projects

Drilling of oil, gas, coal, water or other natural sources for production of power and energy products; installation of machinery for generating electricity; erecting manufacturing plants; building construction of plants; building construction; advisory services regarding building construction; installation of industrial plants; maintenance services for industrial plants; construction information; rental of construction, plant and building equipment; building repair; repair or maintenance of power generators; building maintenance and repair; repair services for electric generators and wind turbines

Distribution of energy; electricity distribution; storage of electricity; electricity supply and distribution; distribution and transmission of electricity

Generation of power; energy production; leasing of energy generating equipment; processing and refining of oil, gas and natural sources and fuels for production of energy, electricity, cold, heat, air and water; electricity generating; generation of gas and electricity

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 saving 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; construction drafting; engineering services for the design of constructions; technical consultancy services relating to construction engineering; engineering services for the analysis of constructions