Drammen river basin hub

At a glance

• 17,114 km² area

  third largest river basin in Norway

• 500 to 2600 mm

  annual rainfall

• 107

  hydropower stations

• 2 TW

  installed capacity

• 8.3 TWh

  annual production

Water users:

• Energy production and demand
• Expected increased water demand
• Domestic water demand – population growth
• Eco flow and biodiversity
• Changes in seasonality, e.g. snow accumulation and melt
• More frequent rainfall floods, less frequent snowmelt floods
• Water stress during drought, lacking preparedness plans

Main challenges exacerbated by climate change: