Home – Energy – The world’s largest solar farm is greening the Tibetan desert: 20,000 sheep graze where yesterday there was only dust and solar panels
China’s solar push has delivered a strange and very real side effect on the Tibetan Plateau. In a dry corner of Qinghai Province, where sand once dominated the land, grass now grows beneath rows of solar panels, and more than 20,000 sheep graze under the blue-black modules.
What began as a power project has become something broader, a test of whether clean energy infrastructure can also repair damaged land. The answer, at least in Talatan, is looking more promising than many expected, though experts still warn that not every desert can be fixed by simply planting panels.
The Talatan solar complex sits in Gonghe County, part of Hainan Tibetan Autonomous Prefecture in northwest China’s Qinghai Province. The site is nearly 9,800 feet above sea level, in a harsh, windy landscape that has long struggled with desertification.
Local officials describe the Hainan ecological photovoltaic industrial park as the world’s largest solar power park by installed capacity. A 2026 government review said the park covers about 235 square miles, contains more than 7 million solar panels, and reached 21 gigawatts of cumulative photovoltaic capacity in 2025.
How does a solar farm help grass grow in a place like this? The answer is surprisingly down to earth. The panels break the force of the wind, shade the soil, and allow water used for cleaning the panels to seep into the ground rather than disappear right away.
Government reporting says the area had a desertification rate as high as 98.5 percent before the solar buildout. Monitoring data later found that wind speeds inside the photovoltaic park dropped by 50 percent, soil moisture evaporation fell by 30 percent, and vegetation coverage recovered to 80 percent.
That changed the business problem too. Grass growing under the panels may look like a victory, but too much of it can shade solar modules, cut efficiency, and raise fire risks during dry months. At the end of the day, the operators needed a way to mow thousands of acres without turning the place into a chemical maintenance zone.
That is where the sheep came in. Solar workers and local herders found that grazing animals could keep vegetation low while fertilizing the ground at the same time. “We used to weed twice a year, but with sheep, we only do it once, saving costs,” said Cao Jun, an engineer at Huanghe Hydropower Development Co.
The numbers are no longer small. Earlier reporting put the annual pasture output at about 121,000 U.S. tons and the number of “photovoltaic sheep” at more than 20,000. A 2025 local government review said Hainan Prefecture had built 32 photovoltaic eco-pastures and was raising more than 25,000 photovoltaic sheep each year.
The design has had to adapt too. In some areas, panels have been mounted higher so the animals can move beneath them more easily, turning the land between rows into usable pasture instead of fenced-off industrial space. It is not glamorous. But it works.
For local herders, the change is not just about cleaner power. It can mean less time searching for pasture, healthier animals, and a more stable way to make a living in a place where traffic jams are not the problem, but wind, sand, and thin grass certainly are.
One herder, Yehdor, told Chinese state media that the grass growth near his home pasture is the best he can remember. He also said his sheep are bigger and have a higher survival rate after grazing at the solar farms.
The animals have even become a brand. People’s Daily Online reported that each sheep can wear an electronic ear tag containing information such as age, owner, and immunization history. For consumers buying meat, that traceability turns “photovoltaic sheep” from a nickname into a marketable product.
Still, the Talatan story should not be oversold as a universal cure. A 2025 study in Environmental Research Letters found that solar farms in Qinghai can boost vegetation greenness, with effects extending roughly 0.62 miles from solar sites. But the same study also said climate factors and solar farm construction both played major roles, meaning the panels are only part of the explanation.
There is also the grid question. Much of China’s best solar and wind potential is in the west, while many factories and cities that need the power are far to the east. AP reported that transmission and grid management remain major challenges, especially because China’s electricity system is still shaped heavily around coal plants.
In practical terms, that means a greener desert does not automatically mean cleaner electricity on someone’s bill. Power has to move, grids have to adjust, and coal plants have to operate more flexibly. That part is much harder than letting sheep eat grass.
Talatan shows that solar farms can be more than rows of equipment in an empty landscape. Managed carefully, they can become windbreaks, shade structures, water traps, grazing grounds, and power stations all at once.
The bigger lesson is not that every arid region should copy Talatan exactly. It is that clean energy projects need to be designed as part of the land around them, not just placed on top of it. That makes the difference between a power plant and a working landscape.
The most recent local government statement was published on Hainan Tibetan Autonomous Prefecture People’s Government.
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