As global photovoltaic capacity surges, the conflict between birds and solar installations is becoming increasingly acute. Bird droppings that cause “hot spots” not only reduce power generation efficiency but can also trigger fires. Meanwhile, birds colliding with panels due to the mirror effect, or nesting inside arrays and causing short circuits, have created challenges at the intersection of ecology and energy. Recently, from international PV exhibitions to domestic ecological reserves, a wave of innovation in “solar bird protection” is quietly emerging. The industry is moving from simple physical deterrence toward a new phase that emphasizes both ecological harmony and efficient power generation.

International Technology Frontiers: From Physical Barriers to Visual “Invisibility”

In the international market, solutions to the bird–PV conflict are becoming increasingly specialized and sophisticated. At the Solar Storage Live exhibition in Birmingham, UK, in April 2025, PestFix unveiled a range of products designed for bird protection at solar farms, drawing widespread attention. Their core offerings include patented Critter Clips (drill‑free fasteners), black PVC‑coated protective mesh, and solar bird spikes. These products create a physical barrier around the edges of panels, effectively preventing pigeons and other birds from nesting under the arrays without damaging the modules or voiding warranties.

At the same time, the EVO 2.0 solution from Italian startup Italgam offers a different approach. It uses brush‑style sealing strips made of UV‑resistant polypropylene bristles and low‑carbon stainless steel wire, installed in the gap between the panels and the roof. This design not only blocks birds but also, thanks to the staggered bristles, ensures adequate air circulation and water drainage, avoiding the overheating issues that can occur with traditional sealing methods. According to the company’s CEO, pigeon protection now accounts for 90% of their production capacity, and over 1,300 solar companies regularly use the product.

In the Netherlands, BirdBlocker introduced its next‑generation product, the BirdBlocker BB85, at the Intersolar exhibition. This “skirt” is made of recyclable black HDPE and is installed around the perimeter of PV modules. It is specifically optimized for corrugated metal roofs on commercial and industrial buildings, aiming to prevent hygiene problems caused by bird nesting (such as fungi and avian flu viruses) as well as fire hazards from accumulated nesting materials.

One of the most forward‑looking breakthroughs comes from the field of building‑integrated photovoltaics (BIPV). The US‑based company Andluca has developed “SafeFlight UV” technology, which integrates bird protection directly into PV glass. Leveraging the fact that birds can perceive ultraviolet light while humans cannot, Andluca embeds a UV coating in the glass. This allows birds to clearly recognize the glass barrier and actively avoid it, while maintaining the building’s aesthetic transparency and the solar panels’ efficiency—successfully resolving the long‑standing trade‑off between preventing bird collisions and achieving high power output.

Domestic Applications: Balancing Ecology with “Low‑Tech” and “High‑Tech” Solutions

In the field of solar bird protection, China is not only keeping pace with international developments but also demonstrating a strong sense of responsibility and innovation, particularly in ecological conservation.

A notable story from late 2025 involved the Zhao’s Lake fishery‑PV complementary project in Huangzhou District, Hubei Province. Facing a 100‑MW solar farm built with an investment of 460 million yuan, project managers encountered an unexpected challenge: as the local ecosystem improved, up to 10,000 egrets began roosting at the site. Large amounts of bird droppings covered the panels, significantly reducing generation efficiency. While installing bird deterrents or wire mesh would have cost only about 200,000 yuan as a one‑time investment, the project ultimately decided against these low‑cost options to avoid disturbing the birds. Instead, they chose to spend nearly 500,000 yuan per year on regular cleaning using both manual labor and drones, achieving a harmonious coexistence of “green energy” and “white feathers.”

On the Chongming Dongtan National Nature Reserve in Shanghai, a cross‑industry collaboration has provided a model for energy supply in ecologically sensitive areas. In September 2025, GoodWe joined forces with Trina Solar, NIO, and the Nanjing Institute of Environmental Sciences (under the Ministry of Ecology and Environment) to build a solar‑storage‑charging microgrid green refueling station. The project specifically uses low‑noise inverters that operate below 29 decibels, providing green electricity for patrol vehicles within the reserve while minimizing acoustic disturbance to the bird habitat. This truly achieved the dual goals of “zero‑carbon patrolling” and ecological protection.

In addition, solar‑powered bird deterrents have played an important role in waterway management in Yuanling, Hunan Province. To address the problem of cormorants and other waterfowl perching on navigation markers, leading to droppings that foul and corrode equipment, the local waterway management authority installed solar‑powered bird deterrents on the markers. These devices use ultrasonic waves and flashing lights to gently deter birds, avoiding the pollution associated with chemical repellents while protecting aquatic biodiversity.

Industry Trends: Multi‑Dimensional Protection and a Shift in Philosophy

Looking across these developments, the solar PV bird protection sector is showing three major trends:

Diversified Technologies: Solutions have evolved from simple bird spikes and nets to integrated approaches that combine materials science, optics (such as UV coatings), and acoustics (low‑noise frequency conversion).

Eco‑Friendly Orientation: The industry consensus is shifting from “eliminate or drive away” to “coexist and guide.” Whether it is the higher‑cost manual cleaning in Huangzhou or the low‑noise power station in Chongming Dongtan, these examples reflect a growing respect for biodiversity alongside energy development.

Standardization and Aesthetics: For the distributed PV market, new products increasingly emphasize ease of installation (drill‑free, tool‑free), seamless integration with buildings, and overall aesthetics. Black PVC‑coated mesh and “skirt” designs that blend with the module frame are becoming mainstream.