We revolutionize hydrogen and electricity
Harnessing the power of low-grade waste heat
UNUM Energy presents Reverse Electrodialysis Heat Pump (RED-HP) technology — an innovative energy solution that harnesses salinity gradients to produce clean hydrogen and/or electricity. Unlike conventional reverse electrodialysis (RED), which depends on fresh and seawater, RED-HP operates in a closed-loop system, eliminating location constraints while maximizing energy production.
By integrating MultiSource heat pump technology, we are able to convert waste heat into hydrogen and electricity, eliminating reliance on external power sources. This breakthrough technology offers a scalable, carbon-neutral alternative to traditional energy generation, with the added benefit of free cooling.
Inside the RED stack
Reverse Electrodialysis (RED) is a process that generates electricity by harnessing the chemical energy potential from salinity gradients. It works by placing alternating anion (AEM) and cation exchange (CEM) membranes between saline water and freshwater streams. As ions naturally move across the membranes, they create an electric potential, which is converted into usable energy. This clean, renewable energy source is ideal for continuous, sustainable energy production.
“Supercharging” RED with a Heat Pump
RED-HP utilizes ion exchange membranes to facilitate ion separation, generating an electric potential that produces renewable electricity. At the same time, the system can efficiently produce hydrogen, which can be stored and later used to power homes, vehicles, and other energy applications, providing a versatile and sustainable fuel source.
Unlike prior art RED systems, RED-HP actively regenerates its salinity gradient using a proprietary heat-driven process, significantly boosting power output while maintaining efficiency in diverse environments.
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