Inresol V2-6 SX


The Inresol V2-6SX Stirling engine is clarified as a ‘ hot air engine’ and creates on demand heat and power by feeding the heater section of the engine from a solar thermal heat source. The needed 1000 degrees celcius of controlled heat expands the nitrogen working gas forcing the displacer piston to move. The engine is water cooled resulting in the top section (the cold section at approx. 80 deg.C) to contract the working gas allowing the power piston to move. The expansion and contraction happens approximately 20 times per second creating power from our permanent magnet generator.


The size of the market that this engine can be adapted to is very large, wherever there is a plentiful amount of sun and solar thermal heat it can be inserted into a CSP solar tracking device due to its versatility and short list of requirements. Inresol have a unique design of Solar tracker unit specially designed for this V2-6 stirling engine, available under licence agreement.


The V2-6SX concludes to be the lightweight solution to a combined heat and power need. With vast operational longevity and ease of installation and maintenance, its adaptability and performance can provide power and heat on demand of up to 5kW peak of electrical output and up to 10kW of on demand heating from the circulated hot water if needed.


Specifications Units Genious
Rated output* kW 0-5kW engine (0-10 kW inverter
Voltage ACV 110-240 V (48A) 50-60Hz -1 Phase 220-400 V (16A) 3 Phase
  DCV 12 V (15A) & 300 V (34A)

Solar Thermal heat
Heat recovery    
Recovered heat BTU/hr (kW) 34,100 BTU/hr (10kW)
Hot water temp Inlet °F (°C) >86 (30)
  Outlet °F (°C) <185 (85)
Hot water flow rate gal/min (L/min) 6,4 (24,3)
Total CHP efficiency****** % 88-94
Electrical generation efficiency % 22-38
Thermal generation efficiency % 50-70
Sound level    
For rated load**** (Radiator fan stopped) dB (A) ?
For rated load**** (Radiator fan operating) dB (A) ?
Width in. (mm) 15,4 (390)
Depth in. (mm) 16,6 (420)
Length in. (mm) 32,3 (820)
Net weight lb (kg) 77,2 (35)
* Parasitic loads are included
** The heat recovery and efficiency values are those for rated output in standard atmospheric contitions.
*** Maximum of 5%:6.7 gal/min (25.5 L/min).
**** The sound levels are maximum values measured in four directions at distance of 3.3ft (1.0 m).
***** The amount of fuel consumption based on lower calorific values (running continuously).
****** Efficiency is depending on application and temperature


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