Calculate Solar Power & Water Savings

Water Savings Calculation by Shading though Solar Arrays

This interactive tool estimates how much water can be saved when a solar array shades a canal, reservoir, lake, dam or irrigation pond.

The science behind it is simple: sunlight, wind, and temperature drive evaporation — the natural loss of water to the atmosphere. By covering the surface with solar panels, part of that sunlight is blocked, which reduces the energy available to evaporate water. Wind and humidity are also factored in, since they strongly influence how quickly water is lost.

By combining real-world weather data with the geometry of a solar array, the model shows how shading can cut evaporation and conserve valuable freshwater — while at the same time generating renewable energy.

Use the app to select a location, size a water body and array, and explore the monthly water savings achieved by solar-driven shading.

Solar Power Output Simulation

This tool makes our solar performance simulations accessible to the public — from policymakers to investors. It models how much energy a solar array can generate in any global location using real weather data and solar physics.

The model accounts for:

  • Panel orientation (e.g. south-facing or east-west-facing)

  • Local solar irradiance (sunlight availability)

  • Panel specifications (wattage, efficiency, area)

  • Cooling effects from water surfaces below the array

Our goal is to share the science behind Solar Waves: Solar installations that not only generate power but also reduce water evaporation in dry climates.

Use the map to choose a location, configure the system, and explore monthly and annual energy output.