42 Engineering services involving technical project development of pipe lines and pipework in the field of gas, water and waste water, and sewage; technical engineering consultancy in the fields of energy conservation, environmentally friendly energy production and efficient energy production for consumers and companies; engineering services, particularly technical calculations; research in the field of energy production; computer programming for data processing, especially of programs in the fields of energy procurement, energy supply, energy delivery and energy transport; engineering services involving technical project development of power stations; technical engineering consultancy, engineering services involving preparation of technical expertises, and engineering services involving technical calculations in the field of the production, procurement, transportation and the use of energies; technical engineering consultancy for the optimization of power stations; technical air quality monitoring of industrial plants in the fields of energy, gas, water and waste water, and sewage and from heat generating plants; scientific and technological research services in the fields of energy engineering; product research and development services; compilation of data for research purposes comprised of scientific and technical analyses for the use of wind power; engineering services involving technical project development for the manufacture of apparatus, plants and equipment in the fields of energy, electrical and environmental technology and for the construction of machines, plants and equipment; services of a building project manager, namely, engineering services involving technical planning of construction projects, especially of wind parks