42 Scientific and technological services and research and design relating thereto; industrial analysis and research services; design and development of computer hardware and software; scientific and industrial research services related to fuels, combustible, energy and renewable sources; research and development in the field of renewable energy; professional consulting services relating to energy design, energy consumption, use of ecological energy and reducing energy consumption; hire, rental and letting of gas, water and heating apparatus; hire rental and letting of apparatus for producing solar, wind, biomass, combustion hydroelectric, tidal and wave energy; technical and legal assistance concerning solar, wind, biomass, combustion hydroelectric, tidal, wave and other reusable energy power projects; testing of wind mills, wind turbines and wind plants; testing of solar panels and solar power apparatus and plants; professional consulting services relating to alternative sources of energy; design and development of solar, wind, biomass, combustion hydroelectric, wave and tidal power apparatus, installations and plants; testing and surveying locations for the siting of solar energy and renewable energy plants; consultancy, advisory and information services for all of the aforesaid services