A passive, maintenance-free technology from Exlterra called the Groundwater Energy Passive System (GEPS®), addresses both of solar's major soil-related headaches: stormwater runoff driven by construction compaction and decreased permeable surface area, and long-term structural damage caused by uneven moisture distribution around panel footings.

If you've ever noticed cracks snaking across a basement wall, doors that suddenly won't close right, or a driveway that's heaved up in the middle of nowhere, you may have experienced one of the most costly and least-talked-about problems in construction: expansive clay heave. It's a problem that quietly destroys billions of dollars in homes, commercial buildings, and infrastructure every year.