A visitor stares intently at a model of an intelligent eco-town in the Clean Energy Expo China 2019 in Hangzhou, Zhejiang province. The expo opened in Hangzhou International Expo Center on Sept 5. [Photo/VCG]

The Clean Energy Expo China 2019 opened in Hangzhou, Zhejiang province, on Sept 5, attracting over 150 companies in the clean energy industry to display their latest products and technologies.

This year's expo focuses on scientific and technological achievements in clean energy, clean alternatives and electric energy alternatives.