Upgrading hydropower plants to pump storage plants: a hydraulic scale model of the tunnel system

Pitorac, Livia; Vereide, Kaspar; Lia, Leif

doi:10.14264/uql.2020.602

Cited by 3 publications

(2 citation statements)

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“…The work started with an initial numerical model based on construction drawings and tuned using field measurements (Pitorac et al 2018). Based on the results, an initial version of the hydraulic scale model was built with similar simplifications as the initial numerical model (Pitorac et al 2020). However, the tuning of the model was unsuccessful.…”

Section: Resultsmentioning

confidence: 99%

“…Reconstruction of HPPs into PSPs is especially interesting in Norway because the country currently holds over 80 TWh of storage capacity in existing hydropower reservoirs and over 30 GW of existing HPP capacity. The country currently only holds 10 PSPs with a total installed capacity of 1,000 MW in pumping (Pitorac et al 2020). By reconstructing existing HPPs, the existing reservoirs and tunnel system can be utilized, which will significantly lower both construction costs and environmental impacts.…”

Section: Introductionmentioning

confidence: 99%

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Hydraulic Scale Modeling of Mass Oscillations in a Pumped Storage Plant with Multiple Surge Tanks

et al. 2022

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As power systems include more intermittent renewable energy sources, energy storage solutions are needed to support them. Pumped hydro is a reliable alternative for long-term energy storage. A solution for bringing more pumped hydro into the power system is to upgrade existing hydropower plants into pumped hydro. To investigate this possibility, a case study with a complex tunnel system and multiple surge tanks along both the headrace and the tailrace tunnels is selected. A hydraulic scale model and validation methods were developed. The challenges in developing and validating complex models involving multiple surge tanks, throttles, head loss, and limited prototype information are detailed.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%