How Solar Farms Can Boost Biodiversity

Did you know that solar farms hold potential far beyond producing renewable energy? When planned and managed carefully, they can create thriving habitats for wildlife and improve soil condition all while delivering long-term environmental value alongside financial returns.

For farmers considering how to diversify land use, biodiversity is becoming an important factor in decision making. Planning policies, environmental legislation and public expectations continue to place greater emphasis on protecting and enhancing natural habitats. At the same time, many landowners are looking for opportunities that both strengthen the long-term resilience of their land and generate a reliable income.

Solar farms can contribute to these objectives. The greatest benefits are achieved when biodiversity is considered from the earliest stages of a project and supported through ongoing land management long after installation has been completed.

Why Biodiversity Matters in Solar PV Installations

Biodiversity refers to the variety of plant and animal life within an environment. Healthy ecosystems support pollination, improve soil quality, strengthen natural pest control and increase resilience to changing weather conditions.

These benefits are significant across UK agriculture, so much so the Department for Environment, Food & Rural Affairs (DEFRA) recognises the essential role biodiversity plays in supporting productive farming systems.

Biodiversity is also becoming an integral part of planning for new developments. In England, Biodiversity Net Gain (BNG) legislation requires most developments (subject to certain exemptions) to deliver at least a 10% increase in biodiversity value, measured against the site’s pre-development biodiversity value using the statutory biodiversity metric

For solar farms, this creates an opportunity to deliver renewable energy while leaving the land in a better ecological condition than before.

How Solar Farms Can Create Valuable Wildlife Habitats

The biodiversity value of a solar farm depends on how the site is designed and managed.

Solar panels don’t need to cover every available area, they just need to incorporate spaces that encourage vegetation, flowering plants and wildlife corridors. These features create habitats that support insects, birds and small mammals while maintaining efficient energy generation.

Solar Energy UK’s Solar Habitat 2026 report highlights several measures that consistently improve biodiversity outcomes across solar developments, including:

• Establishing species-rich wildflower grassland beneath and around panels
• Planting native hedgerows to connect habitats across the landscape
• Installing bird, bat and insect boxes where appropriate
• Creating ponds or wetland features where site conditions allow
• Maintaining buffer zones around existing ecological features

The report also demonstrates that many solar farms support significantly greater species diversity than the intensively managed agricultural land they replace, particularly where biodiversity has been incorporated into the design from the outset.

Additionally, many sites continue to support agricultural activity through sheep grazing, allowing land to remain productive while reducing vegetation management requirements.

Why Biodiversity Also Benefits the Land

Native grasslands and diverse planting can improve soil structure by increasing organic matter and encouraging healthy microbial activity. Consequently, better soil condition supports water infiltration, reduces surface runoff and helps protect against erosion during periods of heavy rainfall.

Pollinator populations, such as bees and butterflies, also benefit from carefully managed habitats. These species play an important role in many farming systems by supporting crop production.

Furthermore, vegetation beneath solar panels can create a more stable microclimate. Increased ground cover helps retain soil moisture during warmer periods, while reduced disturbance allows soils to recover from repeated cultivation.

Over time, these improvements can contribute to healthier land that remains productive beyond the lifespan of the solar installation.

Long-Term Land Management Makes the Difference

Solar Energy UK emphasises that long-term habitat management is one of the most important factors influencing biodiversity success across operational solar farms.

Successful solar farms are typically supported by ecological management plans that guide how vegetation is maintained throughout the lifetime of the project. These plans often include seasonal mowing schedules, hedgerow management, monitoring of invasive species and habitat maintenance designed to encourage continued ecological improvement.

Agrivoltaics are recognised as an effective management approach where site conditions are suitable. Grazing helps control vegetation naturally while allowing flowering species to establish and reducing the need for mechanical maintenance.

Measuring Biodiversity Success

Demonstrating environmental improvements is important for developers, farmers, landowners and planning authorities.

Ecological surveys are typically carried out before installation begins to establish a baseline for the site. Follow-up monitoring then measures changes in habitat quality and species diversity over time. Indicators may include:

• Habitat condition
• Plant species diversity
• Pollinator activity
• Bird populations
• Soil condition

This ongoing monitoring helps ensure management plans continue to deliver meaningful environmental improvements while providing evidence that biodiversity objectives are being achieved.

Natural England’s Biodiversity Metric provides a consistent framework for measuring these outcomes.

Creating Long-Term Value Beyond Renewable Energy

Alongside a stable source of income, these environmental benefits can strengthen the long-term value of the land and help prepare farming businesses for changing environmental standards and future land management priorities.

Choosing the right development partner plays an important role in achieving these outcomes. A well-planned solar farm should balance renewable energy generation with thoughtful ecological design, creating benefits that extend well beyond the electricity produced.

As part of the Noble Foods Group, with a heritage in agriculture and food production, Noble Green Energy is embedded in the industry. Noble Green Energy is also a member of Solar Energy UK, consistently focused on providing solar installations to the highest industry standards. Contact us today to discuss your solar PV requirements.