The project aims to assess the feasibility of a floating solar PV system combined with native plant barriers at the high-altitude Chalviri Reservoir in Potosí, Bolivia. It is developed together with the Stockholm Environment Institute (SEI) for the local water utility (AAPOS) for the purpose of reducing operational energy costs for the utility while protecting water resources in a city increasingly affected by drought, flooding, and water shortages.

It’s been operating for less than 12 months with 6-10 team members.The phased project approach starts with a 180 kW pilot to supply electricity for AAPOS’s own use, planning to expand to 6 MW and achieve long-term energy autonomy. The floating system avoids competing for land and leverages the cooling effect of water, improving efficiency. Native high-altitude vegetation (indigenous plants & species) around the reservoir will reduce water evaporation and improve ecosystem health. The feasibility study will provide technical, environmental, and financial analysis to assess the feasibility of the technology. Beyond SEI, the project is supported by the Bolivian Government, AAPOS, and a local university, and is seeking international climate finance.

Major costs include technical design, floating solar equipment, and establishing native plant nurseries. Key risks include the harsh high-altitude climate, engineering requirements for extreme UV radiation and freezing temperatures, compliance with Bolivian regulations, and coordination among partners. A successful project could become a replicable model for other high-altitude, water-stressed cities that delivers environmental benefits and long-term savings for public water utilities.