Retail store services and on-line retail store services featuring energy efficient products and cost saving services for residential, commercial, and industrial buildings featuring negotiating with and switching residential and commercial customers' electricity providers, providing energy efficiency audits and promoting and marketing energy efficient lighting, heating, ventilation, and air conditioning systems, thermostats, water heaters, home and business lighting and lighting controlling systems, windows and doors, radiant barrier products, insulation, solar screens, window films, surge protection and modulation, appliances, and all other electric, gas, solar, wind, and water energy technology; consultation in the field of energy efficiency