4
Electrical energy; Gaseous fuels (including natural gas)
35
Advertising; Sponsoring in the form of advertising; Business management and business administration in the field of generating and supplying energy, power and gas; Arranging and concluding of energy, electricity and gas supply contracts with energy and electricity suppliers, generators and consumers; Retailing and wholesaling, including via the internet, of energy; Consumer advice and business consultancy, professional business and organisational consultancy, all in connection with the purchase and consumption of electricity or gas; Trading in electricity
39
Transport; Conducting and Transport of energy, Electricity and Gas, In particular through pipelines; Storage of energy; Energy supply by means of supplying and distributing energy, power and gas
40
Power and energy generation
42
Scientific and technological services in the energy field; Engineering in the field of generating energy, power and natural gas; Consultancy in the field of energy-saving; Technical consultancy in connection with the purchase and consumption of energy, power and gas