Desalination Lessons from Israel for Kenya’s Coastal Water Future
Hedera desalination plant in Israel. | Photo Courtesy

Desalination Lessons from Israel for Kenya’s Coastal Water Future

Kenya’s coastline has long struggled with access to clean drinking water. Wells are turning salty, rainfall is unreliable, and many communities still depend on expensive water deliveries. A new global example now shows what is possible.

Israel has begun refilling the Sea of Galilee—its main freshwater lake—using desalinated seawater pumped inland. It is the first project of its kind, turning treated ocean water into a backup source for a threatened freshwater system. The move signals how far desalination technology has advanced.

For Kenya, the lesson is clear. If seawater can help stabilise a national reservoir in a dry region like Israel, it can also support coastal communities facing chronic shortages. Towns and islands in Lamu, Kilifi, Tana River and down to Kwale stand to benefit most.

Water cart in Mombasa Kenya, some residents depend on theses for clean water supply | Photo Courtesy

Youth groups in Lamu have already made clean water a top priority. Many villages still rely on shallow wells or saline boreholes that worsen during dry seasons. Desalination could finally break this cycle of scarcity.

Israel’s system shows what works: strong infrastructure, renewable energy integration, and strict environmental safeguards. Their desal plants operate along the Mediterranean and feed into a national distribution network. Kenya can adapt the model to local needs and scale.

Small and medium desal units powered by solar would be game changers along Kenya’s coast. These modular systems can serve villages, schools and health facilities without waiting for massive government projects. They also reduce dependence on long-distance water trucking.

Environmental risks are manageable if planned early. Brine disposal, energy sourcing and ecosystem impacts must be addressed openly and transparently. With clear regulation, desalination becomes both safe and sustainable.

Financing remains the biggest challenge. Desalination costs have dropped, but upfront investment is still heavy. Blended finance, public–private partnerships and climate adaptation funds can bridge this gap.

A general view of the Membrane Desalination Water Plant in Hedera Israel. | Photo by IDE Technologies/MCT

Community involvement will determine success. Coastal residents should shape decisions on plant locations, tariffs, environmental protections and management. Water access is not only a technical issue—it is a social one.

A few pilot projects can open the path forward. Solar-powered desal units in high-need areas of Lamu or the islands would show what works at small scale. Successful pilots can then expand to a full coastal water strategy.

Israel’s breakthrough at the Sea of Galilee is not a perfect template, but it is proof that desalination can secure a region’s water future. Kenya’s coast can build on that example with solutions tailored to its own culture, climate and communities.

The technology exists. The need is urgent. What remains is the commitment to ensure every coastal household has reliable, safe drinking water—no matter how the climate shifts.

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