4
Biofuels; Fuel; Lighting fuel; Fuel gas; Natural gas; Compressed natural gas; Liquefied natural gas; Gas for lighting; Oil-gas; Producer gas; Electrical energy; Electrical energy from solar power; Electrical energy from wind power; Electrical energy from renewable sources; Electrical energy from non-renewable sources; Hydrogen fuel
9
Fiber optics; Fiber optics; Fibre optic couplings; Fibre optic telecommunications apparatus; Fibre optic cables; Fibre optic panels
11
Sunlight collecting apparatus for heating purposes; Thermal storage instruments [solar energy] for heating; Solar energy powered heating installations; Solar energy powered heating installations; Solar cell lighting apparatus; Water purifying apparatus; Sewage purification apparatus; Solar thermal collectors [heating]; Solar thermal collectors [heating]; Solar energy powered heating installations; Solar energy powered heating installations; Solar powered lamps; Solar thermal collectors [heating]; Water distribution installations; Water conduits installations; Regulating and safety accessories for water and gas installations; Regulating and safety accessories for gas pipes; Regulating and safety accessories for water apparatus; Regulating and safety accessories for gas apparatus; Regulating accessories for water or gas apparatus and pipes; Regulating accessories for water or gas apparatus and pipes; Safety accessories for water or gas apparatus and pipes; Safety accessories for water or gas apparatus and pipes; Drinking water supply installations; Water purification, desalination and conditioning installations; Water supply installations; Sanitary installations, water supply and sanitation equipment; Water conditioning units
35
Tracking and monitoring energy consumption for others for account auditing purposes; Procurement of contracts concerning energy supply; Import-export agencies in the field of energy; Billing services in the field of energy; Business efficiency expert services; Water meter reading for billing purposes; Wholesale services in relation to water supply equipment; Retail services in relation to water supply equipment
37
Maintenance, servicing and repair of power generating apparatus and installations; Fueling of hydrogen gas for vehicles; Repair of biogas plants and machines; Mains laying; Construction of power plants; Installation of electric light and power systems; Telecommunication wiring; Renovation, repair and maintenance of electrical wiring; Advisory services relating to the installation of power plants; Electrical wiring services; Electrical installation services; Installation of solar powered systems; Installation of solar heating systems; Installation of non-residential solar panel power systems; Installation of residential solar panel power systems; Installation and maintenance of solar thermal installations; Pipeline construction and maintenance; Maintenance and repair of solar heating installations; Maintenance and repair of solar power installations; Construction of water supply installations; Providing information relating to the repair or maintenance of water pollution control equipment; Installation of water pipes; Installation of gas and water pipelines; Water supply installations maintenance; Repair or maintenance of water purifying apparatus; Renovating services relating to conduits for water supply; Plumbing and gas and water installation
39
Rental of electric bicycles; Water supplying; Water distribution and supply; Supply [transport] of water through pipes; Supply [transport] of water for domestic use; Supply [transport] of water for agricultural use; Storage of energy and fuels; Storage of electricity; Distribution of energy; Distribution of renewable energy; Distribution and transmission of electricity; Water distribution and supply; Providing information relating to water supplying services; Providing information relating to the distribution of electricity; Supply of electricity; Leasing the use of power lines to third parties for the transmission of electricity; Water distribution and supply; Supply of electricity; Consultancy services relating to the distribution of electricity; Electricity distribution; Public utility services in the nature of electricity distribution; Public utility services in the nature of natural gas distribution; Information and advisory services in relation to the distribution of energy; Electricity distribution; Transport of natural gas; Transport and distribution of natural gas and liquefied gas; Transport by pipeline
40
Rental of equipment for the treatment and transformation of materials, for energy production and for custom manufacturing; Energy production; Generation of power; Generation of electrical power using carbon sequestration; Generation of electricity from wind energy; Production of electrical power from renewable sources; Production of hydroelectric power; Production of energy by power plants; Production of energy by nuclear power plants; Generation of electricity from solar energy; Generation of electricity from geothermal energy; Consultancy services relating to the generation of electrical power; Information and advisory services relating to the generation of electricity from wave energy; Air and water conditioning and purification; Providing information relating to water treatment; Water purification; Regeneration of water; Water treating; Soil, waste or water treatment services [environmental remediation services]
42
Rental of meters for the recording of energy consumption; Rental of energy consumption recording meters; Energy auditing; Energy auditing; Design and development of software for control, regulation and monitoring of solar energy systems; Design and development of energy distribution networks; Design and development of regenerative energy generation systems; Consultancy in the field of energy-saving; Professional consultancy relating to the conservation of energy; Consultancy relating to technological services in the field of power and energy supply; Consultancy in the field of energy-saving; Development of energy and power management systems; Provision of information concerning research and technical project studies relating to the use of natural energy; Research in the field of energy; Conducting research and technical project studies relating to the use of natural energy; Conducting technical project studies; Recording data relating to energy consumption in buildings; Technological analysis relating to energy and power needs of others; Advisory services relating to the use of energy; Technological consulting services in the field of alternative energy generation; Engineering services in the field of electrical power and natural gas production; Engineering services relating to energy supply systems; Technical design and planning of power stations; Development of power assemblies; Electrical safety research; Research in the field of electrical engineering; Electrical engineering services; Technical design services relating to electricity plants; Testing of apparatus in the field of electrical engineering for certification purposes; Testing of apparatus in the field of electrical engineering; Water analysis; Technical design and planning of pipelines for gas, water and waste water; Monitoring of water quality; Technical design services relating to water supply installations; Water quality control services; Exploration services in the field of the oil, gas and mining industries