CASE STUDY- Ulla-Forre dam

Question 1

what is the annual production of energy of Ulla Forre dam complex?

Answer 1

4.5 terrawatt hours

Question 2

how is it possible that Ulla Forre can produce so much energy?

Answer 2

Because the Blasjo reservoir is 1000m above sea level and the generating stations are much lower which creates large potential energy

Question 3

how much water can Blasjo reservoir hold?

Answer 3

3.1 billion tonnes of water

Question 4

why is the water supply of the reservoir sustainable?

Answer 4

Ulla-forre has high annual rainfall (2000mm per year) therefore water is a non critical renewable energy resource in the area

Question 5

what is good about the reservoirs location?

Answer 5

• 250km from Oslo, 125km fro Bergen and 100km from Stavanger (three of the biggest cities in Norway) so little energy is lost over these short distances
• Located on a uninhabited plateau at 1000m above sea level so it meant no one was affected by its construction

Question 6

how has the natural environment been looked after in the construction of the HEP dam?

Answer 6

Salmon ladders have been built allowing salmon migrations to continue which its good for the tourist industry aswell

Question 7

what has the low operating costs meant for electricity prices?

Answer 7

Fallen sharply- in Oslo electricity prices have dropped by half