While the phrasing is hilarious, there do seem to have been blackouts throughout 2021. Here's an article from the Global Times published 8 months later: https://www.globaltimes.cn/page/202109/1235270.shtml

The unexpected and unprecedented power cut in three provinces in Northeast China - Heilongjiang, Jilin and Liaoning - on Monday following reported electricity shortages have resulted in major disruptions to the daily lives of people and business operations, sparking growing concerns over the potential disruption of power supplies as demand booms ahead of the upcoming winter season.

Power rationing in some parts of Northeast China, particularly in some residential communities without advance warning, has sparked public anger and growing debate over China's power supply. Some have questioned if the recent power cuts are an indication of a potentially large domestic gap in power supplies that could lead to an "energy crisis."