The Forty2 is a portable solar power generator developed by Peppermint Energy for use in disaster recovery and preparedness, new housing developments, and areas where power access is limited. Benefits of the Forty2 include operation without noise, smell, or fuel, ability to use indoors, portability, compatibility with a wide range of products such as phones, lights, heating blankets, and even many refrigerators. Peppermint Energy is located in Sioux Falls, South Dakota.
As of 2018, Peppermint Energy’s website has been inactivated.
Power rating (W or kW)
Battery capacity (mAh)
0.5 – 2
Grid compatibility (yes/no)
Not with included hardware.
Description of mobility
- Solar panels rated to output 180 watts
- 250 Wh Lithium Ion battery
- 2 AC outlets
- 1 USB port
- 12.7 x 86.36 x 76.2 cm (5" x 34" x 30")
- 27.22 kg (60 lbs)
Support provided by Peppermint Energy Customer Service.
Replacement components are not readily available.
1 year warranty on unit, 5 year warranty on solar panels.
Manufacturer Specified Performance Parameters
Performance Targets: 2 hour charge time for 250 Wh battery and peak wattage less than 1000 W.
Vetted Performance Status
Be sure to follow proper electrical installation and control guidelines.
Complementary Technical Systems
Academic Research and References
Compliance with regulations