Hol 1 Urunda hydropower in Norway

Hol 1 Urunda is located in the southern part of Norway, midway between Oslo and Bergen. Hol is a typical mountainous region where 91% of the area is located more than 900 metres above sea level.

Photograph: Hafslund E-CO
Djup 210612 1089,61 mot Toviki


Energy source:  Hydro
Origin: Norway
Installed capacity: 106 MW
Annual est. production: 355 GWh
Old capacity:  1956
Decommissioned: 2009-2012
New capacity:  2009-2012
Operator: Hafslund E-CO



Hol 1 Urunda is one of three power plants in the watercourse. The plant has its headwaters in the lakes of Varaldsetvatn, Strandevatn, Stolsvatn, Bergsjø and Rødungen. These lakes are all part of the Drammen river system which flows eastward, reaching the sea at the Drammensfjord as it flows through the city of Drammen.

The power plant has a catchment area of 725 km2 and a storage capacity of 870 million m3.

The four turbines were replaced between 2009 and 2012. In 2010 a new dam replaced the old one at the main reservoir.

Hydropower is a clean renewable energy source. Snow and rainfall, creating streams and rivers that run into the ocean, renew the source. Hydropower provides up to nearly 16% of the world’s production of power.

Qualities available from this plant

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The power plant is located in one of Norway’s most popular tourist areas close to the largest mountain plateau in Northern Europe, the Hardangervidda national park. The production of hydropower has little visible impact on the landscape.

Why Ecohz

This is an example of a power plant. Ecohz provides access to a comprehensive portfolio of more than 400 power plants, located across six continents. This enables you to choose specific power plants with distinct characteristics, including choice of technology, location, age, size, and owner profile.

Ecohz can document the origin of your energy consumption globally with Guarantees of Origin in Europe, RECs in North America and I-RECs in a select and growing number of countries in Asia, Africa and Latin America.

Ecohz is a leading independent global provider and plays an active role in the current energy transition through its vision of ‘Changing Energy Behaviour’.

Our expertise and 20 years of experience have attracted international corporate clients including BT, Tetra Pak, Signify, Carlsberg, H&M, KBN Bank and Unilever.

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