Advertising, business management, business administration; business administration services, namely, processing applications of others for subsidies, for construction and installation permits, and for governmental incentive programs; business administration related to contractual agreements with technical installers, utility companies and operating and maintenance contractors; business administration of subsidiaries of others to exploit energy generation assets; commercial-business management of enterprises engaged in the construction and operation of power plants and plants for the generation of electricity and the production of other forms of energy, including heat; business advice on automatic data processing; accounting; billing; business advice in the field of use of energy; commercial mediation in the purchase and sale of energy; providing business advice and information on efficient energy, water, and heat usage; providing business advice and information on reducing waste treatment expenses; mediation of contracts and provision of business management advice, whether or not through the Internet, all in the fields of trading of heat, cold, air- and water-heating equipment, central heating installations, geysers, boilers, stoves and fireplaces, air conditioners, cogeneration equipment, solar collectors, solar panels, solar boilers, water installations and filters being parts of household or industrial installations

Building construction; building, construction, maintenance and repair of power plants and power-generating installations, as well as advice on building, construction, maintenance and repair of power plants and power-generating installations; construction, maintenance, and repair of equipment and installations for the generation, production, storage and distribution of energy, including heat; expansion and modification services, namely, modification of components of equipment and installations for the generation, production, storage and distribution of energy, including heat; construction and maintenance of cable networks and pipelines for the transport and distribution of energy, heat and water; expansion and modification services, namely, modification of components of cable networks and pipelines for the transport and distribution of energy, heat and water; installation, repair and maintenance of electrical apparatus, gas units and installations for heating, air-conditioning equipment, heat and hot water equipment, water cooling equipment and water heating apparatus

Supply, transportation and distribution of energy, heat and water; cold supply, namely, supply of cold water, fluid or air that is used to cool buildings and process equipment; transportation and unloading of non-toxic waste; energy supply; transport of gases and liquids through pipelines; advice in relation to aforementioned services

Generation of electricity; rental of equipment, apparatus and instruments for the generation of electricity, including power units; rental of equipment, installations and plants for producing energy, including heat; rental of equipment for producing energy, namely, solar panels, wind turbines, heat pumps and combined heat and power units; recycling and processing of waste and landfill gas; treatment of waste; recycling of refrigerators; manure processing; waste incineration and destruction; water sanitation; advice in relation to aforementioned services