Consumer energy prices in China aren’t going up because of AI data centers. Easiest way to see they have an oversupply of energy, primarily due to solar.
It absorbs the demand during the day / there’s enough for consumers. Similarly China also has a lot of nuclear. They’ve overbuilt their grid several times over.
That consumer energy prices are going up is simply a matter of public policy. Municipalities have the power to keep rates flat, but they choose not to.