Water level
Skagerak Kraft’s core activity is hydroelectric power production. Activities relating to our production of hydroelectric power impact the water level in regulated bodies of water.
The Norwegian Water Resources and Energy Directorate (NVE) has clear guidelines defining the lowest and highest permitted water level in regulated lakes/reservoirs. These levels are called the lowest regulated water level (LRV) and highest regulated water level (HRV). Skagerak Kraft must ensure at all times that the water level of the lakes and reservoirs that we use and influence is within the LRV and HRV levels.
The table shows reservoirs where Skagerak Kraft influences water level.
| Watercourse systems | Regulated body of water | The highest regulated water level (HRV) | The lowest regulated water level (LRV) |
|---|---|---|---|
| Arendal watercourse | Napevann | 512.13 | 487.13 |
| Arendal watercourse | Gaus | 589.12 | 550.12 |
| Begna watercourse | Aurdalsfjord | 306.99 | 303.24 |
| Begna watercourse | Bløytjern | 748.97 | 745.97 |
| Begna watercourse | Tisleifjord | 820.57 | 809.07 |
| Kragerø watercourse | Toke | 60.35 | 55.75 |
| Numedal watercourse | Sønstevann | 1060.00 | 1028.90 |
| Numedal watercourse | Fønnebøfjorden | 459.90 | 459.00 |
| Numedal watercourse | Hanavann | 653.00 | 644.00 |
| Numedal watercourse | Hoppestad | 563.00 | 550.00 |
| Otra watercourse | Botsvatn | 551.00 | 465.00 |
| Otra watercourse | Vatnedalsdammen | 840.00 | 700.00 |
| Otra watercourse | Urevatn | 1175.00 | 1141.00 |
| Siljan watercourse | Mykle | 423.53 | 413.53 |
| Siljan watercourse | Gorningen | 74,90 | 65,00 |
| Sira-Kvina watercourse | Roskreppfjorden | 929.00 | 890.00 |
| Sira-Kvina watercourse | Svartevatn | 899.00 | 780.00 |
| Sira-Kvina watercourse | Gravann | 660.00 | 625.00 |
| Skien watercourse | Breivatn | 749.00 | 723.00 |
| Skien watercourse | Kovatn | 875.00 | 859.00 |
| Skien watercourse | Skjessvatn | 805.50 | 791.00 |
| Skiens watercourse | Vindsjåen | 971,00 | 956,00 |
| Skien watercourse | Bonsvatn | 754.00 | 740,00 |
| Ulla-Førre watercourse | Blåsjø | 1055.00 | 930.00 |