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Background
Timeframe for different operating reserves
Illvatn reservoir
The power market in Europe is changing rapidly. There is an increased interest for flexible
hydropower as the generation capacity of variable renewable energy is increasing. Energy
storage, as well as quick response to load change from market participants are crucial for a
reliable power system and constant balance between consumption and generation. Pump
storage hydropower has the ability to offer regulating power, ancillary services and energy
storage possibilities.
The purpose of this study is to investigate existing and future market for ancillary services,
and if the added investment and operation costs can be covered by added income from
ancillary services.
As a case, we have selected a HPP in the Fortun system, the planned “Fivlemyr-Ilvatn”
project. An additional option is to study the existing Herva HPP in the Fortun system. Both
these plants are mainly intended for seasonal pumping. The Fortun hydropower system is
owned and operated by the company Norsk Hydro. In the case study, the main objective is to
compare added income from ancillary services to added cost for construction and operation,
analyze optimal capacity and design.
Master Thesis
Department of Hydraulic and
Environmental Engineering
Pumped Storage Hydropower
for Delivering Balancing
Power and Ancillary Serviced
– A Case Study in The Fortun
Hydropower System
By Ingunn Norang
Supervisor: Ånund Killingtveit