4
Electrical energy from renewable sources; Electrical energy from non-renewable sources
35
Procurement of contracts concerning energy supply; Import-export agencies in the field of energy; Tracking and monitoring energy consumption for others for account auditing purposes; Sale of energy from waste transformation and/or treatment and/or disposal
37
Hazardous waste clean-up services; Waste removal [cleaning]; Construction of underground storage installations; Installation of energy-saving apparatus; Installation, maintenance and repair of solar energy collectors; Maintenance and repair of solar installations for generating power, Installation of solar energy production installations; Maintenance and repair of energy production installations; Installation of environmental control systems for clean environments
39
Waste disposal [transporation]; Waste disposal [transporation]; Clearance [removal and transportation] of waste; Refuse collection services; Transportation of waste to disposal sites; Storage of waste; Storage of radioactive waste; Storage of contaminated waste; Transport and storage of waste; Hire of waste storage containers; Sewage disposal [transport] services; Clearance [removal and transportation] of liquid waste; Distribution of energy; Supply of electricity; Electricity distribution; Storage of energy and fuels; Electricity supply and distribution; Information and advisory services in relation to the distribution of energy
40
Waste disposal [treatment of waste]; Recycling and waste treatment; Industrial toxic waste disposal; Treatment of waste; Treatment of hazardous waste; Treatment [reclamation] of industrial waste; Treatment [recycling] of waste; Waste treatment [transformation]; Treatment of chemical waste; Treatment of toxic waste; Nuclear waste treatment; Treatment [reclamation] of industrial waste; Treatment [recycling] of radioactive waste; Treatment [reclamation] of material from waste; Waste and/or water treatment services; Treatment of waste materials in the field of environmental pollution control; Soil, waste or water treatment services [environmental remediation services]; Treatment of soil, refuse and water (environmental reclamation); Waste water treatment; Air regeneration; Regeneration of water; Reprocessing of nuclear fuels; Reclamation of material from waste; Sorting of waste and recyclable material [transformation]; Disposal of solid residues; Rental of equipment for the treatment and transformation of materials, for energy production and for custom manufacturing; Energy production; Energy production; Production of electrical power from renewable sources
42
Design of industrial plant; Technical design and planning of water purification plants; Design and development of regenerative energy generation systems; Technological consultancy in the fields of energy production and use; Engineering services in the field of electrical power and natural gas production; Chemical analysis; Chemical research and analysis services; Chemical analysis; Chemical analysis services for use in evaluation; Working on and evaluation of chemical analyses; Environmental testing of exhaust emissions; Environmental testing; Environmental hazard assessment; Environmental consultancy services; Environmental assessment services; Environmental monitoring services; Research in the field of environmental protection; Research in relation to environmental protection; Environmental testing and inspection services; Consultation in environment protection; Research in the field of environmental conservation; Technical consulting in the field of environmental engineering; Advisory services relating to environmental pollution; Consultation in environment protection; Environmental monitoring of waste storage areas; Environmental monitoring of waste treatment areas; Rental of meters for the recording of energy consumption; Consultancy in the field of energy-saving; Providing technical advice relating to energy-saving measures; Technical consultancy in the field of environmental science; Technical advice in connection with energy-saving measures; Professional consultancy relating to the conservation of energy; Advisory services relating to the use of energy; Engineering services in the field of energy technology; Development of energy and power management systems; Consultancy relating to technological services in the field of power and energy supply; Technological analysis relating to energy and power needs of others