Which Green Energy is Most Wildlife-Friendly?
Ecotricity is presently the only greener supplier that does not animal waste from abattoirs or factory farms (which obviously make money from selling it). Businesses with solar panels can sell excess energy back to them, for passive income. Founder Dale Vince owns EcoTalk, a phone company powered by this energy, that uses profits to fund rewilding projects.
Are solar panels harmful to wildlife?
The sun is a large nuclear reactor that can release photons (pockets of energy) to create energy when photons hit solar panels (made from silicone dioxide – refined sand). Inverters change direct current (like from an AA battery) to alternating current (like from the grid).
Solar energy does have wildlife issues (abroad, some creatures have been incinerated), though some solar farms are creating wildlife corridors and alternative fencing methods to try to keep wildlife away, and using repurposed mine land. Others leave surrounding areas to ‘rewild’ and avoiding mowing lawns during breeding seasons.
England obviously gets less sun. Oxford University’s Physics Department has recently created solar power, without silicon panels. Their light-absorbing material is for coating onto mobile phones, rucksacks and even vehicles.
Solar panels are now installed on 1 in 20 buildings in England, with quick payback times for schools, hospitals, prisons and large offices, that can sell excess energy back to the grid.
Modern systems have attached batteries, so can be installed on flat or sloping roofs to face any direction, and ‘store energy’ while you’re out, to use at night (watching TV, cooking, baths etc).
Any installation under 50 kilowatts should be conducted by an installer registered with MSC (Microgeneration Certification Scheme) the standards body for small-scale sustainable energy systems. This ensures installations are safe.
Do bird-friendly wind turbines exist?
It’s true that sometimes wind turbines harm birds and bats, but things are getting better. There are now bladeless turbines (that vibrate in the wind, said to be more bird-and-bat-friendly). And in the Netherlands, it’s been found that painting one blade black, can help to reduce bird strike.
Beyond that, wind farms study bat patterns to schedule when turbines spin, often turning them off during peak bat activity.
Wave & geothermal power
Wave energy is from ocean currents and tides, and again care must be taken to avoid impact on marine life. Geothermal energy taps heat from below the Earth’s surface to generate steady power (nearly all of Iceland’s energy is from this source).
How to judge whether a renewable is safe
A practical checklist looks like this:
- What habitat gets replaced or disturbed? Better to install on roofs and car parks, not on or near wetlands or meadows.
- Will animals collide with moving parts? Blades and fast currents raise risk.
- Does it change water movement or quality? Rivers and coasts are for fish and wildlife.
- How much new infrastructure is needed? Tracks, pylons, lighting, fencing and do as much harm.
- Can the operator reduce harm once it’s running? Flexible operators make a difference.
Habitat loss, collision risk, water changes
Habitat loss and fragmentation often cause the biggest long-term effects. For example, ground-mounted solar on species-rich grassland can remove feeding areas for insects and birds. Access tracks for wind can cut across moorland and split up territories.
Collision risk and barotrauma. Birds can hit turbine blades, especially in poor visibility or along busy flight paths. Bats also collisions and pressure changes near spinning blades (barotrauma). In water, fast-moving turbines can injure fish, depending on design and where they sit.
Noise, disturbance, and light at night can shift behaviour (like pushing away breeding birds). Security lighting near hedgerows reduce insect activity, which affects feeding bats nearby.
Water changes are the big warning sign for hydro and some marine systems. A weir can block migration routes. Altered flow can warm water, change sediment, and reduce habitat for invertebrates that fish rely on. Even small changes can ripple through the food chain.
Why location and design matter
- Good planning starts with avoiding sensitive habitats. Peatlands, ancient woodland, dunes, and wetlands often store carbon and support rare species. Building on them cancels out climate gains, as it damages wildlife.
- Developers can schedule noisy work outside key breeding seasons, and keep heavy traffic away from nesting areas. Minimise fencing, reduce light pollution and use existing roads.
- Operators can monitor birds and bats, then adjust operations if problems show up. If a roof hosts nesting birds, work should avoid the nesting period and keep access routes sensible.
