Singapore has no land left to spare — so it built its solar farm on the ocean instead.
The Tengeh Reservoir floating solar installation was just the beginning. Singapore's Energy Market Authority has now approved the deployment of open-water floating solar arrays across its southern coastal zone, covering over 5,000 hectares of sheltered sea surface with high-efficiency photovoltaic panels engineered to withstand saltwater corrosion, tropical storms, and tidal movement.
For a city-state of just 733 square kilometres, land is the one resource Singapore cannot manufacture. But water is everywhere. Floating solar solves the fundamental constraint of urban renewable energy — it turns unusable surface area into a power generation asset without displacing a single building, park, or food source.
Singapore's floating arrays use a modular pontoon system with self-cleaning panel surfaces and submarine cable connections feeding directly into the national grid. Each hectare generates enough electricity to power 180 Singaporean households year-round.
The full coastal deployment will contribute 4 gigawatts of solar capacity by 2035 — covering nearly 30% of Singapore's projected national electricity demand.
A city with no space just found unlimited room for clean energy.
Energy Market Authority Singapore (2024)
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