![](http://www.ecns.cn/hd/2021/05/26/32ba1abbdf0a4a7e81da738f0a4f0aaf.jpg)
A solar boat newly developed by a solar boat team of AGH University of Science and Technology sails on the water, Krakow, Poland, May 25, 2021. The students of the team aim to build a zero-emission racing boat powered by 100% renewable solar energy. (Photo/IC)
![](http://www.ecns.cn/hd/2021/05/26/7ffd5e3586d3474bb8d1be1a42adc474.jpg)
A solar boat newly developed by a solar boat team of AGH University of Science and Technology is put for trial on the water, Krakow, Poland, May 25, 2021. The students of the team aim to build a zero-emission racing boat powered by 100% renewable solar energy. (Photo/IC)
![](http://www.ecns.cn/hd/2021/05/26/91e456e7cc34469889dda54b8e5e8e4a.jpg)
A solar boat newly developed by a solar boat team of AGH University of Science and Technology is put for trial on the water, Krakow, Poland, May 25, 2021. The students of the team aim to build a zero-emission racing boat powered by 100% renewable solar energy. (Photo/IC)