Table 1
Classification of traditional energy and renewable energy industries in Hebei province.
| Industry/Year | 2005 | 2010 | 2015 | 2021 |
|---|---|---|---|---|
| Traditional energy industry | 3033 | 3879 | 5469 | 12671 |
| Electric power and heat production and supply | 1433 | 2089 | 3513 | 10519 |
| Mining professional and auxiliary activities | 41 | 50 | 57 | 60 |
| Coal mining and washing | 748 | 839 | 901 | 1000 |
| Gas production and supply | 269 | 302 | 337 | 383 |
| Petroleum, coal and other fuel processing industries | 528 | 585 | 645 | 693 |
| Oil and gas extraction | 14 | 14 | 16 | 16 |
| Renewable energy industry | 75 | 338 | 2656 | 16148 |
| Science and technology extension and application services | 20 | 112 | 1150 | 11 912 |
| Scientific research and technology services | 1 | 3 | 20 | 252 |
| Research and experimental development | 22 | 129 | 1116 | 2777 |
| Professional technology service | 32 | 94 | 370 | 1207 |
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