Groundwater wells located near the ocean often encounter saltwater intrusion as they pump more and more water. As a result, water that was once fresh can become salty and undrinkable over time and require treatment. Because desalination requires significant electricity to run high pressure pumps, solar energy is an ideal way to generate ‘off-grid’ energy that is both reliable and cost effective for desalination. This allows groundwater that would otherwise be unuseable to become a reliable source of additional water.