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Building, construction and demolition; Excavation services, and extraction of natural resources; Rental of tools, plant and equipment for construction, demolition, cleaning and maintenance; Charging of batteries and power storage devices, and rental of equipment therefore; Installation of wind power systems; Installation of hydropower systems; Installation of solar powered systems; Installation of power generating apparatus; Installation of energy-saving apparatus; Construction of geothermal energy installations; Repair or maintenance of power generators; Repair of energy supply installations; Maintenance and repair of electricity generators; Maintenance and repair of solar power installations; Maintenance and repair of energy generating installations; Servicing of power generating apparatus and installations; Repair of power generating apparatus and installations; Maintenance of power generating apparatus and installations; Repair of energy production plants and machines; Maintenance and repair of solar heating installations; Providing information relating to the repair or maintenance of power generators; Emergency servicing of apparatus for supplying electricity; Maintenance, servicing and repair of power generating apparatus and installations; Installation of residential solar panel power systems; Installation of non-residential solar panel power systems; Repair or maintenance of power distribution or control machines and apparatus; Dismantling of power lines; Installation of solar heating systems; Construction of utility solar installations; Installation and maintenance of solar thermal installations; Maintenance and repair of solar thermal installations; Construction of power plants; Construction of wind power plants; Maintenance and repair of wind power plants; Repair services for electric generators and wind turbines; Installation of geothermal installations; Construction of geothermal heating installations; Maintenance and repair of geothermal installations; Construction of geothermal community heating installations; Installation and maintenance of photovoltaic installations; Installation of photovoltaic cells and modules; Maintenance, repair and reconditioning of photovoltaic apparatus and installations; Installation of heat exhaust systems; Repair of heat recovery apparatus; Installation of glass in conservatories, windows, doors and greenhouses; Services for the repair of heat exchangers; Construction; Maintenance of property; Plant maintenance; Building maintenance and repair; Pump repair or maintenance; Machinery installation, maintenance and repair; Maintenance and repair of heating; Installation and maintenance of irrigation systems; Installation of apparatus for heating; Heating equipment installation and repair; Maintenance and repair of heating apparatus; Heating contractor services; Installation, repair and maintenance of heating equipment; Advisory services relating to the installation of solid fuel heating systems; HVAC (Heating, ventilation and air conditioning) installation, maintenance and repair; Installation of apparatus for ventilating; Construction of ventilation shafts; Repair of ventilating apparatus; Air duct cleaning services; Routine servicing of ventilating apparatus; Retrofitting of ventilating installations in buildings; Maintenance and repair of ventilating apparatus; Air conditioning vent sealing services; Retrofitting of heating, ventilating and air conditioning installations in buildings; Installation of refrigerating apparatus; Maintenance of domestic refrigeration; Routine servicing of refrigerating apparatus; Maintenance and repair of refrigerating apparatus; Installation of heating and cooling apparatus; Maintenance and repair of cooling appliances and installations; Maintenance and repair of motor vehicle cooling systems; Advisory services relating to the installation of heating and cooling apparatus; Installation of sanitary apparatus; Repair of sanitary installations; Cleaning of mobile sanitary facilities; Installation of smoke extraction systems; Routine servicing of heating apparatus; Routine servicing of air conditioning apparatus; Routine servicing of drying apparatus; Servicing of industrial boilers; Servicing of nuclear plant; Maintenance of electronic apparatus; Emergency servicing of gas supply apparatus; Emergency servicing of water supply apparatus; Maintenance, servicing and repair of household and kitchen appliances; Installation of fire extinction systems; Installation of fire detection systems; Maintenance and repair of fire detection systems; Maintenance and repair of fire extinction systems; Fire alarm installation; Fire alarm repair; Installation of fire evacuation systems; Installation of passive fire protection; Installation of industrial fire protection; Maintenance of fire alarm installations; Installation of active fire protection; Repair or maintenance of fire alarms; Maintenance and repair of fire evacuation systems; Fire alarm installation and repair; Maintenance and repair of fire alarm systems; Maintenance and servicing of fire alarm systems; Providing information relating to the repair or maintenance of fire alarms; Advisory services relating to the installation of fire prevention equipment; Installing septic tanks; Installation of gas pipelines; Installation of apparatus for air-conditioning; Cleaning of water supply plumbing; Installation of instrumentation systems; Electric appliance installation and repair; Installing satellite dishes; Installation of pipework systems; Installation of plant; Refurbishment of air conditioning plant; Renovation of electrical wiring; Installation of plumbing systems; Installation of plumbing; Installation of central heating apparatus; Installation of environmental engineering systems; Cleaning of nuclear plant; Hydro-electric factory construction; Construction of wave energy power plants; Maintenance and repair of wave energy power plants; Providing information relating to the repair or maintenance of nuclear power plants; Advisory services relating to the installation of power plants; Construction of nuclear power plants
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Design and development of energy distribution networks; Design and development of energy management software; Design and development of software for control, regulation and monitoring of solar energy systems; Provision of information concerning research and technical project studies relating to the use of natural energy; Conducting research and technical project studies relating to the use of natural energy; Design and development of regenerative energy generation systems; Research in the field of energy; Energy auditing; Engineering services in the field of energy technology; Advisory services relating to energy efficiency; Technical advice in connection with energy-saving measures; Engineering services in the field of electrical power and natural gas production; Professional consultancy relating to energy efficiency in buildings; Technological analysis relating to energy and power needs of others; Providing technical advice relating to energy-saving measures; Engineering services relating to energy supply systems; Technological consulting services in the field of alternative energy generation; Technological consultancy in the fields of energy production and use; Rental of load banks for testing electrical power sources; Development of energy and power management systems; Recording data relating to energy consumption in buildings; Rental of meters for the recording of energy consumption; Professional consultancy relating to the conservation of energy; Advisory services relating to the use of energy; Consultancy in the field of energy-saving; Programming of energy management software; Computer programming for the energy industry; Certification services for the energy efficiency of buildings; Consultancy relating to technological services in the field of power and energy supply; Drafting and development of photovoltaic systems; Engineering services for the gas industry; Technical design and planning of pipelines for gas, water and waste water; Conducting feasibility studies relative to gas exploitation; Prediction measurement of steady state exhaust emissions; Engineering services relating to gas transport and supply systems; Geophysical exploration for the gas industry; Conducting feasibility studies relative to gas exploration; Design planning; Consultation services relating to interior design; Construction drafting; Engineering design; Design services; Conducting technical project studies; Engineering project studies; Design of heating; Technical design and planning of heating installations; Technical design services relating to heating installations; Technical design services relating to cooling appliances and installations; Technical design services relating to sanitary apparatus and installations; Design services relating to the installation of sanitary fittings; Development of power assemblies; Inspection of signalling instruments; IT services; Compilation of information relating to information technology; IT consultancy, advisory and information services; Research in the field of information technology; Information technology consulting; Engineering services relating to information technology; Information technology support services; Information services relating to information technology; Provision of information relating to information technology; Consultancy and information services relating to information technology; Providing science technology information; Information technology [IT] consultancy; IT project management; Technical consultancy services relating to information technology; IT service management [ITSM]; Consultancy and information services relating to information technology architecture and infrastructure; Providing information on computer technology and programming via a web site; Information technology services for the pharmaceutical and healthcare industries; Scientific research relating to ecology; Research in the field of ecology; Technical project planning; Technological planning services; Technical design services relating to electricity plants; Technical design and planning of power stations