4
Electrical energy; Fuel gas; Producer gas; Electricity and/or natural gas products, including electricity and/or natural gas products for supply to retail energy customers
9
Apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity; energy regulators; energy control devices; thermostats; smart thermostats; electric controlled devices for energy management; thermal energy measuring devices
36
Brokerage of carbon credits; Brokerage of carbon offset credits on behalf of offset producers, including arranging the purchase and offer of carbon offset credits; Providing for the exchange of carbon offset products and services; Energy brokerage services, including electricity, natural gas and renewable energy certificates for residential and commercial customers; Providing financial advice to independent sales persons engaged in the sale of energy, electricity, natural gas and the sale and purchase of carbon offset credits and renewable energy certificates
39
Electricity distribution; Distribution of energy; Distribution and supply of electricity; Distribution and supply of natural gas
42
Advisory services relating to the use of energy; advisory services relating to energy efficiency; research in the field of energy; consultancy in the field of energy-saving; engineering services relating to energy supply systems; development of energy and power management systems; technical advice in connection with energy saving measures