Wholesale store, retail store, and mail order, and on-line mail order services featuring goods for electrical systems, building systems engineering, installation technology, solar technology, photovoltaics, solar modules, mounting systems and renewable energies and accessories of the aforementioned goods; organizational and business administration consulting, in particular in the field of solar technology, photovoltaics and renewable energies; Business organizational and business administration consulting, namely, organizational and professional business consultancy as it relates to the establishment and implementation of a sales and marketing system; planning and conducting of customer loyalty measures for advertising and marketing purposes; Services with regard to product presentation to the public, namely, the collection of goods excluding the transport thereof, for others, for presentation purposes; the bringing together, for the benefit of others, a variety of goods for sales purposes, namely, a variety of goods relating to the field of solar technology, photovoltaics and renewable energies; Advertising text publication services, namely, publication of printed and electronic matter for advertising purposes; business management and organization consultancy services; Preparing business reports, namely, drawing up of business expert reports; Business consultancy and advisory services, namely, consultancy and advisory services in the field of business strategy; Economic forecasting; Arranging of trading and economical contacts, also over the internet, namely, providing referrals in the field of electrical systems, building systems engineering, solar technology, photovoltaics, solar modules, mounting systems, and renewable energy; Providing business information and consultancy for consumers and businesses, namely, providing business information via a website and business management consulting; Arranging and conducting special events for business purposes, namely, conducting business information events with regard to professional business matters in the field of energy conservation and energy efficiency; Arranging of trading transactions and commercial contracts, namely, the arranging for third parties of contracts with electricity suppliers