Animal Welfare Implications of Renewable Energy Infrastructure

Solar farms, wind turbines, and other renewable energy infrastructure affect wildlife. Understanding and mitigating these impacts is essential for genuinely sustainable energy transition.

Key Facts

Wind turbines kill an estimated 140,000-500,000 birds and 500,000-1.5 million bats annually in the USA
Solar farm glint and glare causes bird collisions and can attract insects that in turn attract predators
Offshore wind farms can affect cetacean navigation through noise pollution during construction
Appropriately designed solar farms can provide wildlife habitat benefit — pollinator strips and sheep grazing are common co-uses
Siting renewable energy away from key migration routes, bat corridors, and raptor hunting ranges dramatically reduces mortality
Smart curtailment systems that stop turbines during peak migration reduce mortality by up to 80%

Welfare Considerations

Renewable energy infrastructure presents welfare trade-offs: it reduces the climate change-driven welfare harms that affect all wildlife, but it directly harms individuals of sensitive species through collision and disturbance. The welfare-optimal approach is not to oppose renewable energy but to support its deployment with robust siting standards, wildlife-sensitive design, monitoring requirements, and mitigation technology. The welfare harm of turbine collision mortality — though significant in aggregate — is far smaller than the welfare harm of climate change impacts on wildlife from continued fossil fuel use. Advocates who oppose renewable energy on welfare grounds are making an error that benefits fossil fuels at the expense of the animals they aim to protect.

What You Can Do

Support renewable energy deployment alongside rigorous wildlife-sensitive siting and design standards
Advocate for mandatory curtailment systems during peak bird and bat migration on new wind installations
Engage with planning processes for renewable energy projects in sensitive wildlife areas
Support research into renewable energy designs that minimise wildlife mortality including blade colouration
Share evidence on the balance of climate and collision welfare impacts with anyone who opposes renewable energy on wildlife grounds