The article is dedicated to one of the most actual present issues – providing energy saving and energy efficiency technologies over gas distribution stations. It is argued that electric energy generation needed for acceptable operation of gas distribution stations, can be implemented through supply of internal energy of compressed natural gas passing through expander-generator turbine before supplying to the end consumer. For these purposes the article proposes using the expander-generator based on small flowrate turbine design LPI with a large relative pitch of the blades, which was developed in Saint Petersburg State Polytechnical University (SPbPU).