Price area · NO1 · Norway · NVE
South-East Norway
60.4% full
Capacity
6.0 TWh
Energy stored
3.6 TWh
Hub city
Oslo
Last updated
2026-06-07
Current fill
60.4%vs 7 days ago
+11.5%gaining
vs 1 year ago
+3.7%year-over-year
7-day trend
↑rising
Data source: NVE — Magasinstatistikk — weekly filling degree (fyllingsgrad) and energy content (TWh) by elspot price area. Norway is a hydropower system, so storage is reported as energy, not water volume; filling degree is usable energy ÷ usable capacity. Last reading: 2026-06-07.
About South-East Norway
South-East Norway (NO1) is the Oslo electricity price area, one of five into which Norway divides its hydropower system. Its reservoirs hold about 6.0 TWh of usable energy capacity. Filling degree is drawn down through winter and refills with snowmelt from late spring; comparing the current curve against earlier years (above) shows whether the area is running wetter or drier than normal.
Frequently asked questions
How full are reservoirs in South-East Norway right now?
As of 2026-06-07, reservoirs in South-East Norway (NO1) were 60.4% full — about 3.6 TWh of stored energy out of 6.0 TWh of usable capacity.
What is NO1?
NO1 (South-East Norway) is one of Norway’s five electricity price areas, centred on Oslo. NVE publishes reservoir filling degree for each price area; there is no public per-reservoir feed, so this is the level the data is reported at.
Why energy (TWh) instead of cubic metres?
Norway’s power system is hydropower-based, so NVE measures reservoir storage as the electricity it can generate. Filling degree is usable energy in store divided by usable capacity.