Installation, maintenance and repair of solar energy systems; Maintenance and repair of energy generating installations; Installation of solar energy systems and alternative energy products for residential and commercial use; Installation of renewable energy generation equipment; Home energy assessment services for the purpose of determining home improvements needed to improve energy use and efficiency; Renovation of buildings to improve energy efficiency; Installation, maintenance and repair of solar installations for generating power, solar collectors and photovoltaic modules; Installation and maintenance of solar thermal installations; Installation and maintenance of photovoltaic/solar thermal hybrid installations; Advisory services relating to the installation of heating and cooling apparatus; Consultancy relating to the installation, maintenance and repair of heating, ventilation and air conditioning (HVAC) systems; Consultancy relating to residential and building construction; Consultation in the field of physical maintenance of solar installations for generating power, solar collectors and photovoltaic modules; Providing information related to the installation, maintenance and repair of solar installations for generating power, solar collectors and photovoltaic modules