Innovation provider

Exencotech AB


Assar Svensson
Djupdalsvägen 7
192 51 Sollentuna


The technology:
  • is based on a volume expansion that takes place in a Phase Change Material (PCM) when the material changes phase. A volume expansion under high pressure gives a high energy output.
  • maintains a high relative efficiency even for temperatures below 60 ºC.
  • offers excellent price performance figures.
  • is environmental friendly since it leads to a reduction of emission of green house gases through utilization of waste heat.
  • is scalable which make it possible to build small sized systems.
  • have been checked and scientific approved by scientist at the Stockholm Royal Institute of Technology (KTH).
  • is unique and several patents have been identified and filed.
  • is developed by an experienced team of international experts.


  • Competitive energy price 0.025 €/kWh
  • Unique low temperatures (<55˚C)
  • Environmental friendly
  • Scalable
  • Long technical lifetime
  • Long maintenance intervals
  • Quiet operation (no high frequency turbines etc)

Innovative aspects (ecologic, social and economic)

Environmental Aspects
Zero Emission Technology

Social Aspects (related to the work conditions)
Quiet operation (no high frequency turbines etc)

Economic Aspects
Low  electricity production cost (approx 50% of windpower).

Application examples

For example:
  • Waste heat recovery in industrial processes, vehicles and ships
  • Power generation from geothermal heat
  • Power generation from the thermal gradient in sea water (OTEC)
  • Waste heat recovery in electrical power plants
  • Solar driven electrical power generator
  • Continuous heat driven circulation pumps


Mr Kåre Tjus
IVL Swedish Environmental Research Institute Ltd
P.O. Box 21060
SE-100 31 Stockholm
Switchboard: +46 (0) 8 598 563 00


Current stage of development

Available for demonstration – field tested

Intellectual Property Rights

Patent applied for
Secret know how as well

Country of origin


Country of application



National Contact Point

Uwe Fortkamp
IVL Svenska Miljöinstitutet AB
Valhallavägen 81
P.O. Box 210 60
114 27 Stockholm

Tel: +46 8 598 56300
Tel: +46 8 598 56390