Retail and wholesale of electricity, fuels, gas, gasoline, petrol, coal, industrial oils and greases and lubricants; retail and wholesale of electrical and gas supply and metering equipment; incentive schemes to improve energy efficiency and increase utilisation of sustainable energy technologies in homes, buildings and commercial structures; incentive schemes to improve energy efficiency and increase utilisation of sustainable energy technologies in homes, buildings and commercial structures; promotion, advertising and marketing; marketing research and studies relating to improving energy efficiency and use of sustainable energy technologies; organisation of exhibitions for commercial advertising purposes in respect of improving energy efficiency and use of sustainable energy technologies; endorsement of sustainable energy technology programs, activities and products; retail and wholesale of apparatus and instruments for improving energy efficiency; consultancy services relating to improving energy commercialisation; consultancy, advice and information about the aforesaid services

Installation, maintenance and repair of apparatus and equipment used in the production, distribution, transmission, transportation, storage, supply, use, metering and monitoring of electricity and gas; installation, maintenance and repair consultancy, advisory and information services in relation to the production, distribution, transmission, transportation, storage, supply, use, metering and monitoring of electricity and gas; consultancy, advice and information about the aforesaid services

Distribution of electricity and gas; transmission of electricity and gas; transportation and storage of electricity and gas; supply of electricity and gas; consultancy, advice and information services about the aforesaid services

Production of energy; generation of electricity; processing of gas; oil and gas well treatment; consultancy, advice and information in relation to the aforesaid services

Exploration services to locate oil and gas; consultancy in the field of energy saving and efficiency; research in the field of environment protection; measuring and analysis of greenhouse gas emissions; consultancy services in relation to the energy industry including energy efficiency, greenhouse gas emission reduction and utilisation of sustainable energy technologies; research and development services in relation to improving energy efficiency and increasing utilisation of sustainable energy technology; assessment and certification of building design and construction including assessment and certification of energy efficiency in homes, buildings and commercial structures; dissemination of information relating to improving energy efficiency and use of sustainable energy technologies including programs and activities; technical design and planning of pipelines for gas, water and waste water; engineering in the fields of energy featuring renewable energies and efforts to combat climate change; product development, engineering and conducting feasibility studies in connection with environmental protection, sustainable development, and renewable energies; audit programmes relating to the offset, minimisation and mitigation of carbon emissions; efficiency experts in respect of sustainable energy and energy efficient technologies; advice and evaluation of material suitability and fitness for the purposes of improving energy efficiency and increasing the utilisation of sustainable energy technologies in homes, buildings and commercial structures; consultancy, advice and information about the aforesaid services