The company, founded and headed by former NASA scientist, Lonnie Johnson, has also come up with an ambient energy conversion system as well as an electric heat pump.
The Johnson Ambient Heat Engine (JAHE) generates power from the daily ambient temperature fluctuations and uses a thermal mass as a stabilizing heat sink/source. The Johnson Ambient Environment Engine (JAEE) operates in a manner similar to a fuel cell, generating power from daily temperature, barometric pressure and humidity changes.