Households with Solar (number)
| 2009 |
| Turkana | 89,894 |
| West Pokot | 46,980 |
| Mandera | 45,240 |
| Baringo | 30,734 |
| Samburu | 28,451 |
| Marsabit | 27,355 |
| Wajir | 26,296 |
| Narok | 12,977 |
| Elgeyo Marakwet | 11,744 |
| Kitui | 10,311 |
| Garissa | 10,251 |
| Isiolo | 7,283 |
| Meru | 7,015 |
| Laikipia | 5,276 |
| Kajiado | 3,804 |
| Kilifi | 3,471 |
| Nakuru | 3,398 |
| Tana River | 2,785 |
| Tharaka Nithi | 1,652 |
| Kwale | 1,522 |
| Bungoma | 1,493 |
| Bomet | 1,444 |
| Kakamega | 1,367 |
| Makueni | 1,136 |
| Embu | 1,114 |
| Migori | 1,051 |
| Nyeri | 1,004 |
| Trans Nzoia | 994 |
| Homa Bay | 823 |
| Kiambu | 735 |
| Kisii | 711 |
| Uasin Gishu | 628 |
| Nairobi | 622 |
| Vihiga | 582 |
| Busia | 566 |
| Machakos | 565 |
| Lamu | 560 |
| Muranga | 555 |
| Mombasa | 530 |
| Kisumu | 513 |
| Siaya | 440 |
| Kirinyaga | 413 |
| Taita Taveta | 412 |
| Nyandarua | 391 |
| Kericho | 361 |
| Nandi | 316 |
| Nyamira | 297 |