<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>Increasing capacity of intermittent generation brings new challenges to balance demand and supply in power systems. With retirement of conventional fossil generation, the role of energy storage is increasing. One of the most competitive storage technologies is pumped storage hydropower plant (PSHP). Usually, such PSHPs are constructed as green field solutions, but in some cases conversion of a hydropower plant into a pump storage hydropower plant by building a pump station is possible. To evaluate the feasibility of such modernisation it is necessary to estimate the benefits of PSHP operation. The simplified model was developed for simulation of charging and discharging cycles of PSHP in Latvian power system and trading electricity in Nord Pool power exchange. The nature of this task is stochastic as the price volatility has a trend to increase with expansion of wind and solar power plant capacity. Results of PSHP operation simulation were then used in the economic model to evaluate the feasibility of the proposed conversion.</p>
</abstract>

Increasing capacity of intermittent generation brings new challenges to balance demand and supply in power systems. With retirement of conventional fossil generation, the role of energy storage is increasing. One of the most competitive storage technologies is pumped storage hydropower plant (PSHP). Usually, such PSHPs are constructed as green field solutions, but in some cases conversion of a hydropower plant into a pump storage hydropower plant by building a pump station is possible. To evaluate the feasibility of such modernisation it is necessary to estimate the benefits of PSHP operation. The simplified model was developed for simulation of charging and discharging cycles of PSHP in Latvian power system and trading electricity in Nord Pool power exchange. The nature of this task is stochastic as the price volatility has a trend to increase with expansion of wind and solar power plant capacity. Results of PSHP operation simulation were then used in the economic model to evaluate the feasibility of the proposed conversion.

Simplified Model for Evaluation of Hydropower Plant Conversion into Pumped Storage Hydropower Plant

Institute of Power Engineering, Electrical and Environmental Engineering

Latvian Journal of Physics and Technical Sciences

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Increasing capacity of intermittent generation brings new challenges to balance demand and supply in power systems. With retirement of conventional fossil...

Simplified Model for Evaluation of Hydropower Plant Conversion into Pumped Storage Hydropower Plant

Published Online: Jun 24, 2021

Page range: 108 - 120

DOI: https://doi.org/10.2478/lpts-2021-0020

Keywords
Feasibility of conversion, price volatility, pump station, pumped storage hydro-power plant (PSHP), simulation of storage operation

© 2021 S. Kiene et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Simplified Model for Evaluation of Hydropower Plant Conversion into Pumped Storage Hydropower Plant

Published Online: Jun 24, 2021

Page range: 108 - 120

DOI: https://doi.org/10.2478/lpts-2021-0020

KeywordsFeasibility of conversion, price volatility, pump station, pumped storage hydro-power plant (PSHP), simulation of storage operation

© 2021 S. Kiene et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Keywords
Feasibility of conversion, price volatility, pump station, pumped storage hydro-power plant (PSHP), simulation of storage operation