Reebeez

Reebeez was focused on developing advanced propulsion systems for Unmanned Aerial Vehicles (UAVs). Their core innovation centered around solid-state thermoelectrophotovoltaic microengines designed to overcome the limitations of traditional battery power. The goal was to achieve significantly longer flight times and increased payload capacities compared to battery-powered or fuel cell-driven UAVs.

Recognizing the constraints imposed by battery weight on small aerial vehicles, Reebeez aimed to provide a superior alternative. Their thermoelectrophotovoltaic (TEPV) system utilized lightweight combustible fuels, promising a specific energy output eight times greater than lithium polymer batteries, while also reducing costs to approximately one-third.