35
Advertising; Business management; Business administration; Clerical services; Business consultancy and advisory services; Analysis of company behaviour; Billing services in the field of energy; Import-export agencies in the field of energy; Assistance and consultancy services in the field of business management of companies in the energy sector; Human resources management and recruitment services; Personnel services; Personnel recruitment services and employment agencies; Personnel selection [for others]; Personnel recruitment; Staff utilisation planning; Business project management; Business project management services for construction projects
37
Construction services; Construction of power plants; Construction consultancy; Building construction supervision; Building construction supervision services for building projects; On site project management relating to the construction of buildings; General building contractor services; Advisory services relating to the installation of power plants; Maintenance, servicing and repair of power generating apparatus and installations; Installation of photovoltaic cells and modules; Installation and maintenance of photovoltaic installations; Maintenance, repair and reconditioning of photovoltaic apparatus and installations; Providing information relating to the repair or maintenance of power generators; Installation of power generating apparatus; Repair services for electric generators and wind turbines; Plant refurbishment; Renovation of buildings; Providing information relating to building renovation
39
Electricity supply and distribution; Storage of electricity
40
Energy production; Production of energy by power plants; Generation of gas and electricity; Electricity generating; Rental of power-generating equipment; Rental of electricity generators; Consultancy services relating to the generation of electrical power; Production of electrical power from renewable sources
41
Education and instruction services; Personnel training; Arranging and conducting of conferences, congresses and symposiums; Arranging, conducting and organisation of seminars; Arranging and conducting of workshops [training]
42
Science and technology services; Industrial analysis and research services; Scientific and industrial research in particular in the field of electricity; Scientific services and design relating thereto; Technological services and design relating thereto; Conducting research and technical project studies relating to the use of natural energy; Computer hardware development; Software design and development; Engineering services; Development of power assemblies; Engineering services in the field of electrical power and natural gas production; Engineering services in the field of energy technology; Conducting technical project studies; Engineering project management services; Analytical laboratory services; Construction planning; Engineering design and consultancy; Technical design and planning of power stations; Consultancy relating to technological services in the field of power and energy supply; Technical design services relating to electricity plants; Technical supervision and inspection; Services for monitoring industrial processes; Providing scientific information in the field of climate change; Process monitoring for quality assurance; Quality assurance consultancy; Testing, authentication and quality control; Quality checking and testing; Technical measuring and testing; Design and development of regenerative energy generation systems; Technical testing services