| Value | Category |
|---|---|
| 1 | Electricity |
| 2 | LPG |
| 3 | Natural gas |
| 4 | Biogas |
| 5 | Kerosene |
| 6 | Coal, lignite |
| 7 | Charcoal |
| 8 | Wood |
| 9 | Straw/shrubs/grass |
| 10 | Agricultural crop |
| 11 | Animal dung |
| 12 | Alcohol/ethanol |
| 13 | Gasoline/diesel |
| 14 | Solar Power |
| 15 | Processed biomass (pellets) or woodchips |
| 16 | Garbage/plastic |
| 17 | Sawdust |
| 95 | No food cooked in house |
| 96 | Other |