| Value | Category |
|---|---|
| 01 | Electric from a distributing company |
| 02 | Electric from the community |
| 03 | Own electric (plant) |
| 04 | Kerosene or diesel |
| 05 | Gas |
| 06 | Candles |
| 07 | Solar panel |
| 08 | Flash light or lantern |
| 09 | Car battery |
| 10 | Firewood (bonfire) or none |
| 99 | NIU (not in universe) |