35 Advertising services; business management; commercial administration of the licensing of renewable energy generation, distribution and storage equipment and software of others; cost analysis related to energy commodities; tracking and monitoring energy consumption for others for corporate account auditing purposes; industrial management consultancy including cost/yield analyses; commercial information and advice for consumers in the choice of products and services in the field of energy consumption; organization of trade fairs for commercial or advertising purposes in the fields of energy efficiency, energy production, also from renewable sources; arranging of trading transactions and commercial contracts in the fields of energy efficiency related to production, rational use of energy, and optimization of consumption, also through financing interventions in the energy service company (ESCO) formula and the production of energy from renewable sources, and also in the fields of the sale of electricity to end customers; Outsourcing services in the nature of arranging of contracts, for others, for the providing of services and for electricity marketing; goods prices quotation in the field of electricity, and promoting the goods of others, namely, providing information regarding discounts, coupons, rebates, vouchers and special offers for the goods of others in the nature of special offers for the marketing of electricity; business administration services; assistance and consultancy services with regard to business management of companies in the energy sector in relation to energy produced through renewable and non-renewable sources installations; tariff information and advisory services; commercial intermediation services, namely, negotiation and settlement of commercial transactions for third parties in the fields of energy production from renewable and non-renewable sources; commercial intermediation services, namely, negotiation and settlement of commercial transactions for third parties in the fields of the sale of energy from renewable and non-renewable sources to end customers; systemization of information into computer databases in the fields of energy production from renewable and non-renewable sources; retail and purchasing services relating to electric energy, wind energy, photovoltaic energy, thermal and water energy, gas, fuels and combustibles and lighting, namely, retail electricity provider services in the nature of providing a service that allows customers to purchase energy, namely, electricity, and renewable energy, and procurement, namely, purchasing electric energy, wind energy, photovoltaic energy, thermal and water energy, gas, fuels and combustibles and lighting for others; business administrative management of power plants in the field of production and distribution of electric energy and gas; business management services and business administrative services for installation maintenance and management in the field of production, storage and distribution of electric energy; procurement, namely, purchasing of photovoltaic plants or other energy production installations, for others; business consulting services in the fields of energy measurement to improve energy efficiency within residential, commercial, industrial and institutional facilities, namely, assistance in the implementation of business interventions aimed at reducing energy consumption among industrial and tertiary consumers with operational rental logics, performance contracts, or turnkey sales