At a time of deepening drought and energy crises, new-generation floating solar panels installed in freshwater basins are both saving water and increasing energy efficiency. Developed by a US-based startup, the system, unlike existing floating solar panel technologies, allows the panels to rotate horizontally, tracking the sun throughout the day. This translates to a 10% to 20% increase in energy production.

Sun-tracking solar panels are coming

The new system is based on directional propellers integrated beneath traditional pontoons. These propellers allow the panels to rotate on the water surface, adapting to the sun’s east-west movement.

Previously developed floating systems were generally designed to follow only the vertical axis, that is, the rise and fall of the sun. Noria Energy’s new solution, with its horizontal movement, can be integrated onto existing PV platforms.

The first application was carried out on a water reservoir in the US state of Colorado. Despite its small size, the 50 kW pilot plant serves a directly impactful purpose. The project was commissioned in September to meet the energy needs of the pumps that regulate the reservoir’s water level.

The dual benefits offered by such floating systems are noteworthy. Because the solar panels are located on the surface, they reduce evaporation of the water beneath. This allows for the conservation of significant amounts of water, especially in drought-prone regions, while also generating electricity.

While similar projects have been implemented in various countries, Noria’s model distinguishes itself by its ability to be integrated into existing platforms. This feature also allows for the conversion of existing floating systems.

However, a floating system capable of tracking the sun simultaneously in both horizontal and vertical axes has not yet been developed. This structure, feasible in terrestrial systems, faces technical challenges on floating platforms due to environmental factors such as wind and waves.

Noria Energy’s technology not only increases energy efficiency but also expands the flexibility and adaptability of floating solar energy systems. As alternative solutions in energy infrastructure become increasingly important, such systems are expected to be deployed in wider areas.