| Value | Category |
|---|---|
| 2 | GASOLINE/ DIESEL (NOT IN GENERATOR) |
| 4 | COAL/ LIGNITE UNPROCESSED |
| 5 | COAL/ LIGNITE BRIQUESTTES/ PELLETS |
| 6 | CHARCOAL UNPROCESSED |
| 7 | CHARCOAL BRIQUESTTES/ PELLETS |
| 8 | WOOD |
| 9 | AGRICULTURAL OR CROP RESIDUE/GRASS/STRAW/SHRUBS/CORN COBS |
| 10 | ANIMAL DUNG/WASTE |
| 11 | PROCESSED BIOMASS PELLETS/ BRIQUESTTES |
| 12 | WOODCHIPS |
| 96 | OTHER |
| 99 | NO RESPONSE |