Scientific, electric, measuring, signalling, checking, and teaching apparatus and instruments related to energy generation or production of energy by solar or by renewable energy sources, and related safety equipment, namely, pressure control valves, storage tank chargers, parts and fittings for all the aforesaid goods; electric switches, electric transformers, electirc transducers, accumulators, electric regulators, electric controlling instruments, namely electric contollers, apparatus for recording, transmission, processingor reproduction of sound and/or images, namely, television displays and computer monitors all for use in the field of energy generation or production of energy by solar energy or by renewable energy sources; magnetic data-carriers and recording disks, namely floppy disks, hard disk drives, CDs, CD Roms, DVDs containing software for use in the operation of solar or renewable energy devices and collection of data related to the operation of solar or renewable energy devices; calculating machines, namely devices used to control, operate and regulate apparatus and instruements related to energy generation or production or energy by solar or by renewable energy sources such as apparatus for heating, steam generating, cooking, refrigerating, ventilating, water suppy and sanitary purposes, all using solar energy, namely, space heaters, furnaces, water heaters, refrigerators, freezers, coolers, ventilating fans, installations and apparatus for generating energy using solar energy, namely solar collectors for heating installations, facilities for collecting, processing and storing of rainwater, namely, rainwater filters, rainwater collectors, and resevoirs, sold as a unit; solar powered water heaters, stoves, namely wood-burning stoves with automatic heat regulation; hot water tanks, solar water tanks, fresh water connecting, filtering, storing and supply units; solar panels, solar collectors for power generation via solar energy