Electrical energy supply; electricity transport and storage services; services for the distribution, supply and transmission of energy; electricity distribution and supply services; information and advisory services regarding energy distribution and supply; consultancy services regarding energy distribution and supply; storage, transport, distribution and supply of electrical energy, gas and water; supply of heating [distribution]; distribution of energy for heating and cooling buildings; rental of power lines to third parties for electricity transmission; rental of apparatus for conducting, switching and accumulating electricity; energy and water supply company services; supply of energy, electricity, heating, gas or water to consumers; grouping of electric current, heating, gas or water obtained from generation of energy from wind power installations, hydraulic power plants, biomass installations, biogas installations, geothermal power plants, photovoltaic installations or cogeneration plants.