4
Electrical energy; Fuel; Fuel gas
9
Apparatus and instruments for accumulating and storing electricity; Apparatus and instruments for controlling electricity; Photovoltaic apparatus for generating electricity; Scientific and laboratory devices for treatment using electricity; Safety, security, protection and signalling devices; Alarms and warning equipment; Navigation, guidance, tracking, targeting and map making devices; Measuring instruments; Monitoring instruments; Scientific research and laboratory apparatus, educational apparatus and simulators; Electricity storage apparatus; Electricity measuring instruments; Charging stations for electric vehicles; Sensors, detectors and monitoring instruments; Testing and quality control devices; Smart meters; Automatic control apparatus; Digital electronic controllers; Electric control devices for energy management; Electric control devices for heating management; Control stations (Remote, electric or electronic -); Calibrating apparatus; Calibrating apparatus; Calibrating apparatus
11
Heat accumulators
39
Distribution of energy; Distribution of gas; Water distribution; Electricity distribution; Supply of water by pipeline; Services for the supply of water by pipeline; Transportation of fluids by pipeline; Transmission of oil or gas through pipelines; Storage; Transportation of waste; Sewage transportation
40
Energy production; Electricity generating; Generation of gas and electricity; Production of energy by power plants; Production of energy by nuclear power plants; Generation of electricity from wind energy; Production of hydroelectric power; Production of electrical power from renewable sources; Waste water treatment; Processing of dry gas; Treatment of natural gas; Water treating; Waste and/or water treatment services; Recycling services; Waste management services [recycling]; Recycling of waste; Recycling of scrap