електростанція power plant 3 efficiency 2 ефективність 2 air compressor 1 air storage 1 directives 1 efficiency of electrical energy production 1 electric energy 1 electric power station 1 electrical circuit 1 electrical power system 1 energy plant 1 energy storage 1 environmental impact 1 gas turbine 1 hydraulic ram 1 levelized cost of electrical energy 1 mercury content 1 mercury emissions 1 motor generator 1 norms 1 photoenergy module 1 photovoltaics 1 power station 1 pumped storage 1 renewable energy sources 1 solar radiation 1 step-up converter 1 strategy 1