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2. Screw turbine - Wikipedia

   en.wikipedia.org/wiki/Screw_turbine

   A screw turbine at a small hydro power plant in Goryn, Poland. The Archimedean screw is an ancient invention, attributed to Archimedes of Syracuse (287–212 BC.), and commonly used to raise water from a watercourse for irrigation purposes.

3. Microturbine - Wikipedia

   en.wikipedia.org/wiki/Microturbine

   Microturbines have around 15% efficiencies without a recuperator, 20 to 30% with one and they can reach 85% combined thermal-electrical efficiency in cogeneration. [2] The recuperated Niigata Power Systems 300 kW (400 hp) RGT3R thermal efficiency reaches 32.5% while the 360 kW (480 hp) non recuperated RGT3C is at 16.3%. [7]

4. Range extender - Wikipedia

   en.wikipedia.org/wiki/Range_extender

   The most commonly used range extenders are internal combustion engines, but fuel-cells or other engine types can be used. [1] Range extender vehicles are also referred to as extended-range electric vehicles (EREV), range-extended electric vehicles (REEV), and range-extended battery-electric vehicle (BEVx) by the California Air Resources Board ...

5. Azura (wave power device) - Wikipedia

   en.wikipedia.org/wiki/Azura_(wave_power_device)

   The generator is driven with a high-pressure hydraulics system. [12] The wave motion is captured by the circular rotation of the floating mechanism, and translated to crankshafts within the Azura. These crankshafts provide the motion for the high pressure hydraulic system.

6. Diesel generator - Wikipedia

   en.wikipedia.org/wiki/Diesel_generator

   A 200 kW Caterpillar diesel generator set in a sound attenuated enclosure used as an emergency backup at a sewage treatment substation in Atlanta, United States. A diesel generator (DG) (also known as a diesel GenSet) is the combination of a diesel engine with an electric generator (often an alternator) to generate electrical energy. [1]

7. Single-phase generator - Wikipedia

   en.wikipedia.org/wiki/Single-phase_generator

   Elementary generator is an example of single-phase generators with two poles. Single-phase generator (also known as single-phase alternator) is an alternating current electrical generator that produces a single, continuously alternating voltage. Single-phase generators can be used to generate power in single-phase electric power systems.