35
Procurement of contracts concerning energy supply; Retail services relating to accumulators; Retail and wholesale services in relation to: Power installations, generators and accumulators for renewable energies
37
installation and Maintenance in relation to the following goods: Energy saving devices and energy management systems in the field of renewable energies; Construction of geothermal energy installations; Installation of electric light and power systems; Repair of energy supply installations; Installation of photovoltaic cells and modules; Installation and maintenance of photovoltaic installations; Servicing of power generating apparatus and installations; Maintenance of power generating apparatus and installations; Maintenance, servicing and repair of power generating apparatus and installations; Installation of electrical and generating machinery; Installation of wind power systems; Maintenance and repair of solar heating installations
42
Engineering services; Engineering services relating to energy supply systems; Consultancy relating to technological services in the field of power and energy supply; Design and development of regenerative energy generation systems; Advisory services relating to energy efficiency; Professional consultancy relating to energy efficiency in buildings; Design and development of energy management software; Programming of energy management software; Drafting and development of photovoltaic systems