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 promotes all solar cooker designs that are:

  • High-performing and durable

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

SCI is a solar cooker testing center recognized by the
Clean Cooking Alliance.

Evaluations are arranged by SCI and conducted at Regional Testing and Knowledge Centers (RTKCs) in Lalitpur, Nepal; New York, USA; California, USA; and Nairobi, Kenya.

Official Results from the Solar Cookers International (SCI) Performance Evaluation Process (PEP)

Solar cookers are listed below and color-coded by type: reflective-panel cookers (orange); box ovens (green); and evacuated tubes (purple).

  • Click on the solar cooker names to see PEP result reports.
  • Click on the SCI Solar Cooking Wiki Links for additional cooker information.

SCI provides this information to benefit solar cooks and future solar cooks, agencies, and manufacturers; but this information is proprietary, so please do not publish it further without written permission from SCI.

Solar Cooker Name (alphabetically)

SCI Solar Cooking Wiki Link

Standard Cooking Power (watts)

CooKit with oven bag greenhouse CooKit 46
CooKit with Pyrex bowl greenhouse CooKit 58
Fornelia Mini Fornelia 93
Glenergy Solar Cooker Glenergy 85
GoSun Sizzle GoSun 99
Haines 1 Haines Solar Cookers: Haines 1 41
Haines 2.0 Haines Solar Cookers: Haines 2.0 82
StarFlower Solar Chef International: StarFlower 117
SunFocus    Sun BD Corporation: SunFocus 52
UGLI Sun BD Corporation: UGLI 61
Fully committed to PEP testing, results coming soon (pending testing completion and manufacturer approval):

Glenergy Solar Cooker with Glenergy cookware

GoSun Go


PEP tested label for cooker.jpg

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.