Solar Farms Bloom: Desert Plants Thrive

Solar farms are increasingly being designed with nature in mind, a practice known as ecovoltaics. This approach aims to support biodiversity rather than disrupt ecosystems. A recent study highlighted the success of this method at the Gemini Solar Project near Las Vegas.

Before the project, only 12 rare threecorner milkvetch plants were found on the site. Following construction using a gentler approach, scientists documented 93 plants in 2026. These plants also grew larger and produced more flowers and fruits compared to those in a control area.

Experts suggest that the solar panels provide shade, reducing soil evaporation and making more water available for plant growth. This contrasts with traditional "blade and grade" methods that clear vegetation and disrupt the soil's seed bank. Ecovoltaics also involves seeding disturbed areas with native grasses and flowers.

Studies in Minnesota have shown significant increases in plant species and insect pollinators at solar sites. Researchers observed a sevenfold rise in unique flowering plant species and a threefold increase in pollinators. These sites also attracted grassland birds and bats, likely due to the abundance of insects.

Optimizing ecovoltaics involves considering factors like panel height and shade to suit specific plant needs. Some plants thrive in direct sun between panels, while others may prefer shade. Panel height can also accommodate conservation grazing by livestock like sheep and goats, which helps manage invasive weeds and reduces fire risk.

This environmentally conscious approach to solar development offers a stark contrast to the destructive "blade and grade" method. By preserving root structures, ecovoltaics helps prevent soil erosion and discourages the spread of invasive species. The practice also extends to agrivoltaics, where crops can be grown alongside solar panels, further enhancing land use efficiency.