| Value | Category | Cases | |
|---|---|---|---|
| 1 | Electrical grid | 1198 |
66.1%
|
| 2 | Generator | 17 |
0.9%
|
| 3 | Car battery | 0 |
0%
|
| 4 | Petrol | 0 |
0%
|
| 5 | Gas | 319 |
17.6%
|
| 6 | Solar panel | 277 |
15.3%
|
| 9 | Other | 2 |
0.1%
|
| Sysmiss | 1285 |