Pure and doped ice thermoelectrets were prepared at different polarization temperatures (−10° to −135°C). Stored charge was then investigated by the glow peak method. A main band was observed at −50 °C, with a total charge of 10−6 to 10−8 coulombs/cc depending on doping. The total charge released by the glow varied with the square root of HF concentration indicating that the OH− and ions are responsible for the effect. Space charge formation was also shown to be associated with the electret behavior by investigating the influence of sample thickness on the polarization and of the temperature of the glow peak maximum on polarization temperature.