The future of energy is getting a surprising new address: the open ocean. China just flipped the switch on its very first floating solar farm out at sea. What’s truly remarkable is who built it. One of the world’s biggest oil companies is behind this pioneering project.
An Oil Giant’s Green Splash
Sinopec, a massive state-owned oil company from China, announced the completion of this landmark project. This floating solar plant is the country’s first to run at an industrial scale on saltwater. Sinopec’s own subsidiary, Qingdao Refining and Chemical Company, handled the construction. You can read more about it in their press release.
This new solar farm sits off the coast of Qingdao, a city in the Shandong province. It covers a vast ocean area, roughly 60,000 square meters. With a power capacity of 7.5 megawatts, it’s expected to produce about 16.7 million kilowatt-hours of electricity each year. That’s enough to power many thousands of homes and boost local businesses.
Building a solar plant in the open sea is no easy feat. The ocean environment throws many challenges at you. Think about salty air causing rust, big waves, and sea creatures trying to attach themselves. To tackle these, Sinopec teamed up with other Chinese companies. They developed special materials and structures.
The innovations are pretty clever. The floats and supports for the panels were designed to fight off salt spray and stop barnacles from sticking. This helps the whole setup last much longer. They also put in a marine anchoring system. It can hold strong even against “Level 13” winds, which are as powerful as a typhoon. Plus, it handles tide changes of up to 3.5 meters.
Perhaps the smartest trick is how the solar panels move. They go up and down with the tide. This special tech shrinks the gap between the panels and the water surface. It’s just a tenth of what a regular setup would need. Keeping the panels closer to the water helps them cool down better. This smart cooling actually makes the plant 5% to 8% more efficient.

Sinopec’s Bold Green Plans
This project is just the beginning. Sinopec has already announced plans to make the Qingdao plant much bigger. They will add another 23 MW unit, which will quadruple the plant’s power output. This move shows how serious they are about changing their energy mix.
Sinopec is working towards a larger clean energy goal. China expects its oil demand to hit its highest point around 2027. So, the company is shifting gears. The Qingdao site is already a hub for clean energy efforts. It hosts the country’s first “carbon-neutral” hydrogen fueling station. It also has the first industrial project to make hydrogen from seawater.
Sinopec’s vision for a greener future is ambitious. They plan to build 10,000 solar power plants by 2027. They also want to grow their geothermal heating business. And they aim to create the world’s largest network of hydrogen fueling stations.
Sinopec’s dive into offshore solar is part of a global trend. Other countries are also putting solar farms on water. India has large floating solar parks on reservoirs, like the one in Ramagundam. Japan has hundreds of smaller plants on lakes and city reservoirs. Singapore opened one of the world’s largest urban floating solar plants in 2021. The ocean, once just a pathway for oil, is now becoming a source of clean power.