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VLI-EV variable load integrator

Salinity Gradient & Ion Exchange Technology

RED: 24/7, 365‑Day Baseload Renewable Energy Generation System

Where freshwater meets the sea, nature releases energy that has largely gone unharvested. RED turns that salinity gradient into weather-independent, around-the-clock clean power.

How it worksRequest technical data

  • Continuous 24/7/365 Baseload Power

    Weather-independent clean energy generation using seawater and freshwater or treated wastewater.

  • Super Long Life & No Heavy Battery Needed

    Direct ion-flow power without heavy dependency on rare metals or fire risks.

  • Ultra-Compact Footprint

    Containerized unit requiring <1/50th the space of solar farms.

  • Solving Curtailment

    Turning wasted renewable energy and coastal brine into clean power assets.

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VLI-EV RED Power

How it works

Reverse Electrodialysis, step by step

  1. 1. Two water streams

    Seawater, coastal water, or brine flows alongside lower-salinity water — industrial recycled water, river water, or treated sewer water.

  2. 2. Ion-exchange membrane stacks

    Alternating anion-exchange (AEM) and cation-exchange (CEM) membranes let chloride and sodium ions pass in opposite directions.

  3. 3. Clean DC power

    The directed ion flow produces direct current across the stack terminals — continuously, day and night.

How a RED stack generates powerAlternating anion-exchange (green) and cation-exchange (orange) membranes separate high-salinity and low-salinity water. Positive sodium ions move left through the cation-exchange membranes and negative chloride ions move right through the anion-exchange membranes, producing a voltage between the end electrodes.Positive terminalSeries connectionNegative terminalSeries connectionAEM: Anion-Exchange MembraneCEM: Cation-Exchange MembraneCl⁻: ~1.92% of total seawater weightNa⁺: ~1.08% of total seawater weightIndustrial recycled water,river water,treated sewer waterSeawater, coastal water,brine
RED stack: AEM = anion-exchange membrane,CEM = cation-exchange membrane.

Power where and when it's needed

Decentralized coastal generation

RED installs inside coastal cities, using treated wastewater that would otherwise flow to the sea — generating power at the point of consumption, without long transmission lines. Desalination brine becomes a clean energy asset, too.

Coastal facility with containerized equipment beside the water
Containerized units at a coastal site
Aerial view of a wastewater treatment plant
Treated wastewater as the freshwater stream
Open 40-foot container lined with RED ion-exchange membrane stacks and water piping, on a coastal pier at dusk
Modular ion-exchange membrane stacks in a 40-foot container

<1/50

of the land required by solar

1/100

of the ocean area required by offshore wind

24/7/365

weather-independent baseload output

Footprint figures are company estimates.

Global & island applications

  • Hawaii
  • Southeast Asia
  • Southern California
  • Middle East
  • North Africa

Join our mid-size pilot installation

Self-sufficient, decentralized, truly baseload coastal power. Request project data and specifications.

Contact the RED team