D

Business consulting services in the field of energy efficiency; procurement services, namely, purchasing solar energy systems for others; business management of solar energy projects; promoting the benefits of solar energy through public advocacy; consulting services in the field of energy usage management and energy efficiency; providing a website featuring information in the field of solar energy usage management and energy efficiency

Installation, maintenance, and repair of solar energy systems; installation of solar heating systems; installation of solar photovoltaic systems; maintenance and repair of solar heating systems; maintenance and repair of solar photovoltaic systems; installation of energy-saving apparatus; consultancy services relating to the installation, maintenance, and repair of solar energy systems

Design and development of solar energy systems; engineering services in the field of solar energy; technological consulting services in the field of alternative energy generation; monitoring of solar energy systems to ensure proper functioning; research and development of new products for others in the field of solar energy; providing temporary use of non-downloadable software for monitoring and controlling solar energy systems; energy auditing