If you use a model hosted in China while it's night there, the energy obviously doesn't come from solar, as there's not enough storage capacity. Even if you use it during daytime, most of the energy still won't come from solar, because the ideal solar power locations in the sparsely-populated west are far from the ideal data center locations in the densely-populated east and there's not enough transmission capacity between them.

Additionally, using a Chinese provider doesn't mean the model will be hosted in China, e.g. for Qwen Omni here, the supported regions are: China (Beijing), Singapore, China (Hong Kong), Japan (Tokyo), Germany (Frankfurt), and US (Virginia). https://www.alibabacloud.com/help/en/model-studio/qwen-omni#...