42 Design and development of software for control, regulation and monitoring of solar energy systems; Consultancy relating to technological services in the field of power and energy supply; Engineering services relating to energy supply systems; Design and development of regenerative energy generation systems; Technological consulting services in the field of alternative energy generation; Development of energy and power management systems; Research in the field of nuclear energy power generation technology; Design and development of energy distribution networks; Engineering services in the field of energy technology; Certification services for the energy efficiency of buildings.