View Test Results

Thinking of buying a solar cooker or starting a solar cooker project? View test results here to make an informed decision.

About SCI's testing process

Responding to requests from cooks, agencies, and manufacturers, SCI created an objective, scientific process to evaluate solar cookers: the Performance Evaluation Process (PEP). SCI objectively and scientifically evaluates how a solar cooker performs.  Solar cooks and purchasing agencies around the world need these valuable performance metrics to select the solar cooker that best fits the need.

SCI’s evaluation is:

SCI is a solar cooker testing center registered with the Global Alliance for Clean Cookstoves.

SCI has testing centers in Lalitpur, Nepal; New York, USA; California, USA; and Nairobi, Kenya.


  • SCI thanks the manufacturers who have entered into contract for SCI PEP testing: Heliac, Libertad and UGLI.
  • Results are coming soon.

SCI promotes all solar cooker designs that are:

  • High-performing and durable

  • Proven by testing according to the objective SCI performance evaluation process (PEP)

See preliminary test results below: 

Don’t see your favorite solar cooker’s results here?  Encourage the manufacturer to get it tested and/or pay for it to be tested yourself.