India is eyeing “blue energy” as the next frontier in clean power, following high-level talks between the Ministry of New and Renewable Energy (MNRE) and Dutch firm Redstack, which specialises in salinity gradient energy.
The Indian delegation, led by MNRE Secretary Santosh Sarangi, visited the Netherlands this week to evaluate the potential of harnessing electricity from the natural difference in salt concentration between seawater and freshwater. This emerging energy source—also known as osmotic power—could offer India a consistent and sustainable form of baseload electricity, particularly suited for regions along its vast coastline and major river systems. During their visit, Indian officials received an in-depth briefing on Redstack’s proprietary technology and its operational success in European test zones. Subsequent discussions focused on the feasibility of adapting this system for Indian conditions and integrating it into the country’s evolving renewable energy portfolio.
“Harnessing the power of salinity gradients presents a unique and exciting opportunity for India,” said Secretary Sarangi. “Given our extensive coastline and river systems, this technology could become a vital part of our renewable strategy and help meet our climate goals.” India has been aggressively expanding its clean energy capacity, targeting 500 GW of non-fossil fuel-based power by 2030. The MNRE is now exploring advanced, globally proven technologies to supplement traditional renewables like solar and wind. Representatives from Redstack expressed optimism about a future collaboration. “We see strong alignment with India’s goals. Our salinity gradient technology can deliver steady, clean energy wherever freshwater meets the sea,” a Redstack spokesperson stated. “We look forward to further engagement with the MNRE to explore deployment possibilities.”
The visit highlights India’s strategy of global technology scouting to fast-track its clean energy transition. With follow-up discussions expected between the MNRE and Redstack, blue energy could soon emerge as a viable addition to India’s renewable power mix.
