| Value | Category |
|---|---|
| 1 | Electricity |
| 2 | LPG |
| 3 | Natural gas (bottled gas) |
| 4 | Biogas |
| 5 | Kerosene (Paraffin) |
| 6 | Coal, lignite |
| 7 | Charcoal |
| 8 | Wood |
| 9 | Straw/shrubs/grass |
| 10 | Agricultural crop (crop residuals, straw, grass) |
| 11 | Animal dung |
| 95 | No food cooked in house |
| 96 | Other |