Agrivoltaics is the practice of using the same land for both farming and solar power generation. As the need for sustainable energy increases, so does the interest in efficient land use. Traditionally, one might think you need to choose between food or energy. But agrivoltaics offers a win-win solution, allowing farmers to raise crops or livestock beneath solar panels.
In this case, sheep are the stars of the story—acting like eco-friendly lawnmowers, trimming grass and reducing the need for costly maintenance around solar panels. But that’s just the beginning.
At the Wellington Solar Farm in New South Wales, researchers partnered with Lightsourcebp, EMM Consulting, and Elders Rural Services to observe 1,700 merino sheep over a period of three years. The animals were split into two groups: one grazed on traditional pastures, while the other roamed between rows of solar installations.
The aim was to assess whether this unique environment had any impact on the sheep’s health and wool quality. The results, published in early 2025, caught everyone off guard: sheep grazing beneath solar panels produced wool that showed stronger fibers and, in some cases, increased growth.
Several factors could explain the improved wool quality in the solar-grazing group. First, the shade from the panels offers sheep protection from extreme heat, reducing thermal stress—a known factor that can negatively affect wool production. Second, shaded areas help retain moisture in the soil, improving grass quality and reducing dust exposure, both of which are beneficial for wool cleanliness and condition.
Interestingly, the setup might also reduce the presence of parasites, creating a healthier environment for the flock. The idea that a solar farm could double as a natural sanctuary for sheep is turning heads in both the energy and agricultural industries.
Beyond the benefit to wool, the study highlights how agrivoltaic systems can lower maintenance costs by cutting the need for mechanical mowing or herbicides. According to Brendan Clarke from Lightsourcebp, this dual-use land model offers an appealing balance between renewable energygeneration and traditional farming. It also creates opportunities for rural economic development while preserving biodiversity.
A little bit greenwashy. Merino fibre is grown for the very reason it is fine. The finer the fibre the more valuable. Strong fibre is the opposite of fine, meaning lower value.