It's worth noting that this is not being done for environmental reasons (more half of all coal pollution comes from China), but for strategic reasons as China has limited access to oil near it's borders.
Not to mention that they are the world's biggest manufacturing power, so whatever they make for themselves will likely also benefit the rest of the world.
A Prius will definitely pollute less than the typical SUV electric cars on a coal grid.
Cause:
Efficiency of coal power plant and all losses are as bad as ICE cars. The EVs do thermal->mechanical->electrical->grid->battery->wheels and if you count them all up, is not better than an EV
Prius is designed for low drag unlike an SUV
Prius had regenerative braking like an EV
But just the numbers:
Prius is rated at 94g/kg
Coal 950g/kwh
Volvo c40 0.2kwh/km or 190g/km even without losses
Even with the current EU energy mix, it takes 77'000 km to be better than ICE, so arguably better. On coal electricity, they are worse. And this is comparing equally sized cars, a Prius will do better.
And since the oil and gas companies in China are nationalized, they will follow along with the government's plans rather than obstruct or bribe their way as with for-profit private oil and gas companies in many western countries.
They also don’t seem to have many standards either. Specs and reviews I’ve seen seem to jump generations within a few months. I think my favorite ridiculous spec was the ability to use two fast chargers (one on either side of the car since it has two plugs) to pump some 300 miles in 5-10 minutes. It’s wild to read about the stuff they’re doing.
Is there any safety reason to not be able to have two plugs? I could see that being something we could do to renovate western gas stations for EVs in order to facilitate the transition. Just have two plugs side by side so Jim-bob could get his 300 miles in 10 minutes with electric just lol he does with his diesel now
What? I charge my EV using the solar panels on my roof. I sell what extra I don’t use myself to the electrical company. I mean sure, I bet the delivery truck ran on diesel and so on, but that’s not what you said.
For China specifically and at the present time this is true, but China is investing heavily into solar and other renewables that will shift its energy mix dramatically in the coming years. Not to mention that even now, it's still a net benefit to centralize that fossil fuel consumption into plants that can burn it more efficiently and with better pollution controls than are feasible on cars.