Although solar panels have been around since 1883, we’ve only scratched the surface of their potential. Sure, you can install solar panels on your house to save money on your electricity bill (in a decade or so) and replace your home appliances with solar alternatives, but did you know that solar panels are turning China’s deserts green? Well, the problem isn’t the solar panels themselves, it’s their presence.
In 2024, the journal Nature published a study on the impact of China’s Qinghai Gonghe Photovoltaic Power Station (China’s largest solar farm) on the local desert. The installation “had a positive impact on the ecology and environment of the desert area,” the paper said. How do you ask? Because solar panels absorb so much solar radiation, the soil below retains more water due to a lack of evaporation. Add a steady supply of water runoff thanks to monthly cleaning of your solar panels, and you have the perfect scenario to encourage plant and microbial growth in the desert.
According to the study, the ecological changes are somewhat self-sustaining…as long as the solar farms are maintained. Solar farms provide cheap, clean energy while also solving economic problems such as unemployment (local residents can be hired to maintain the solar farms). The micro-oasis created by the solar panels provides pasture for nearby animals while also promoting ecological regulation. The more these solar farms are used, the more benefits they provide, and the more benefits they provide, the more money will be available to maintain and develop solar farms in the future. It’s a positive feedback loop on multiple fronts.
Read more: Climate models can’t explain what’s happening to Earth now
Qinghai’s desert isn’t the only place turning green
Solar panel farm outside Boulder, Nevada – Granddriver/Getty Images
A key element of the scientific process is repetition. Could another group of scientists repeat a study and obtain similar results? If so, the hypothesis would make sense. While the Republic Photovoltaic Park is greening the desert, researchers need to prove it’s not a one-time fluke. Entering the Kubuqi Desert.
Although the Kubuqi Desert is not the largest desert in China, thirty years ago, the main output of this land was sandstorms. Today, the Junma Solar Power Station in the desert generates large amounts of electricity, and the solar panels promote plant growth by, among other things, reducing ground wind speeds. Today, you can find plenty of shrubs and bushes in the Kubuqi Desert, with the occasional fox or hare wandering among them. As with Republic Photovoltaic Park, the benefits extend beyond clean energy. The Junma Solar Power Station also provides pasture for cattle, supports crops such as watermelons and dates, and encourages tourism.
A similar experiment is underway in California. Project Nexus is a study examining the impact of solar panels and the shading they provide on the Hickman Canal east of San Francisco. In theory, the device could help save 63 billion gallons of water by preventing evaporation. While the Nexus project isn’t necessarily as life-changing as encouraging plant growth in the desert, it works on the same principle. Regardless, large-scale solar power plants (in addition to research using cyanobacteria) may be the key to preventing future desertification.
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