HyDee is a portable hydrogen fuel-cell generator developed by EFLOW to provide clean and reliable electricity for outdoor, emergency and home applications. By converting hydrogen into electrical energy, HyDee offers a practical power solution for locations where conventional grid access is limited or unavailable.

The product is available with rated output power options of 1.2 kW and 2.0 kW and supports 110–220 V AC and 48 V DC output. Its compact dimensions of 310 × 240 × 288 mm and lightweight 7.5 kg composite enclosure make it easy to transport and deploy. The system is equipped with a USB-C port, a 220 V AC outlet and a hydrogen inlet.

HyDee operates with hydrogen purity of at least 99.99% and an input pressure of 0.5–1.0 bar. Its compact design enables practical hydrogen energy use across off-grid, mobile and emergency power environments.

HyDee was recognised as a CES 2026 Innovation Awards Honoree in the Energy & Sustainability category.