Related party transactions - Summary of Other Transactions between Related Parties (Details) - Energy solution services - CNY (¥) ¥ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Related party transactions | ||
| Related party transactions | ¥ 465 | ¥ 75,150 |
| Shenzhen Yuanwanghechu Technology Co Ltd | ||
| Related party transactions | ||
| Related party transactions | 400 | 74,460 |
| Huzhou Zhidianlaile New Energy Technology Co Ltd | ||
| Related party transactions | ||
| Related party transactions | ¥ 65 | ¥ 690 |