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

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.

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Dual Frequency Regulation in Pumping Mode in a Wind–Hydro Isolated System

Energies ◽

10.3390/en11112865 ◽

2018 ◽

Vol 11 (11) ◽

pp. 2865 ◽

Cited By ~ 5

Author(s):

José Sarasúa ◽

Guillermo Martínez-Lucas ◽

Carlos Platero ◽

José Sánchez-Fernández

Keyword(s):

Power Systems ◽

Power System ◽

Frequency Control ◽

Hydropower Plant ◽

Frequency Regulation ◽

Variable Speed ◽

Dual Frequency ◽

Pump Station ◽

Control Scheme ◽

Pumped Storage

Frequency control is one of the most critical tasks in isolated power systems, especially in high renewable penetration scenarios. This paper presents a new hydropower pumped-storage dual control strategy that combines variable-speed-driven pumps and fixed-speed-driven pumps. A possible case for implementation of such a control scheme is described based on El Hierro Island’s power system. This isolated power system consists of a hybrid wind pumped-storage hydropower plant and diesel generators. The pumped-storage power plant is divided into a hydropower plant equipped with four Pelton turbines and a pump station equipped with both fixed- and variable-speed pumps. According to the proposed control scheme, frequency regulation will be provided by a dual controller: a continuous controller for the variable-speed pumps and a discrete controller for the fixed-speed pumps. The Pelton units, which operate as synchronous condensers, also supply the power system inertia. Therefore, diesel units may be disconnected, decreasing generation costs and greenhouse gas emissions. Owing to the combination of both controllers and the inertia of the Pelton units, an acceptable frequency regulation can be achieved. This technique has been validated through computer simulations.

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Numerical study of the Martelange mine to be used as underground reservoir for constructing an Underground Pumped Storage Hydropower plant

Advances in Geosciences ◽

10.5194/adgeo-45-51-2018 ◽

2018 ◽

Vol 45 ◽

pp. 51-56 ◽

Cited By ~ 1

Author(s):

Estanislao Pujades ◽

Philippe Orban ◽

Pierre Archambeau ◽

Sebastien Erpicum ◽

Alain Dassargues

Keyword(s):

Numerical Study ◽

Surrounding Medium ◽

High Capacity ◽

Abandoned Mines ◽

Hydropower Plant ◽

Underground Reservoir ◽

Pumped Storage ◽

Surface Reservoir ◽

Synthetic Models

Abstract. Underground Pumped Storage Hydropower (UPSH) using abandoned mines has been considered as a potential high capacity Energy Storage Systems. In UPSH plants, the excess of electricity is stored in the form of potential energy by pumping water from an underground reservoir (abandoned mine in this paper) to a surface reservoir, while electricity is produced (when the demand increases) discharging water from the surface into the underground reservoir. The main concerns may arise from the water exchanges occurring between the underground reservoir and the surrounding medium, which are relevant in terms of environmental impact and UPSH efficiency. Although the role of the water exchanges has been previously addressed, most studies are based on synthetic models. This work focuses on a real abandoned slate mine located in Martelange (Belgium). The effects of different rehabilitation works to prepare the mine as an underground reservoir are assessed in terms of groundwater exchanges and their associated consequences.

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Hydro Power and Turbine Systems Reviews

Jurnal Teknologi ◽

10.11113/jt.v74.4646 ◽

2015 ◽

Vol 74 (5) ◽

Cited By ~ 3

Author(s):

A. H. Elbatran ◽

Mohamed Walid Abdel-Hamed ◽

O. B. Yaakob ◽

Yasser M. Ahmed

Keyword(s):

Power Systems ◽

Rural Areas ◽

New Technology ◽

Hydropower Plant ◽

Hydro Power ◽

Power Scale ◽

And Performance ◽

Pumped Storage ◽

Run Of River

Hydropower energy is one of the most suitable and efficient source of renewable energy which depends on more than century of experience for this issue. The power capacity and facility are two criteria required for the classification of hydropower plant. The first one consists of five technologies: dammed reservoir, run of river, pumped storage, in stream technology and new technology gravitational vortex. The other one is classified according to power scale is Large, Small, Mini, Micro and Pico Hydropower. Nowadays most of rural areas in developed and developing countries use the hydropower plant for producing electricity, it is cheap and effective. This paper gives a review of hydropower technologies and turbines; it is focusing on the categories and performance of hydro power systems and the most suitable turbines which can be used.

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Prospects of Storage and Pumped-Storage Hydropower for Enhancing Integrated Nepal Power Systems

Hydro Nepal Journal of Water Energy and Environment ◽

10.3126/hn.v15i0.11290 ◽

2014 ◽

Vol 15 ◽

pp. 37-41 ◽

Cited By ~ 1

Author(s):

Neeraj Kumar Sah ◽

Madhab Uprety ◽

Sangharsha Bhandari ◽

Prativa Kharel ◽

Saurav Suman ◽

...

Keyword(s):

Power Systems ◽

Power System ◽

Power Plants ◽

Peak Load ◽

Electrical Energy ◽

Hydropower Plant ◽

Hydropower Plants ◽

Pumped Storage ◽

Electrical Demand ◽

Installed Capacity

An Integrated Power System (IPS) should have electrical energy generating plants for base load (e.g., nuclear and thermal plants) and peak load (e.g., hydropower plants) so that they can work in coordination in such a way that the demand is met in time. In Nepal, the Integrated Nepal Power System (INPS) is a hydro-dominated system where the base and intermediate power demands are covered primarily by run-of-river hydropower plants and the peak demand by seasonal storage and several diesel power plants of lower capacity. The INPS should have sufficient natural storage and forced storage power plants to improve the system’s reliability. On top of that, daily peak electrical demand could also be adequately covered by demand-side management, using a pumped-storage hydropower plant that can employ a system’s surplus energy during low demand period for pumping. To rectify this extreme imbalance of installed capacity in Nepal, this paper explores the prospect of storage and pumped-storage power plants for enhancing INPS. A case study of Rupa-Begnas pumped-storage hydropower is highlighted for these purposes.DOI: http://dx.doi.org/10.3126/hn.v15i0.11290HYDRO Nepal JournalJournal of Water, Energy and EnvironmentVolume: 15, 2014, JulyPage: 37-41

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Naval Energy Management System

International conference KNOWLEDGE-BASED ORGANIZATION ◽

10.2478/kbo-2020-0109 ◽

2020 ◽

Vol 26 (3) ◽

pp. 20-25

Author(s):

Laurențiu Bogdan Asalomia ◽

Gheorghe Samoilescu

Keyword(s):

Energy Consumption ◽

Power Systems ◽

New Technologies ◽

Integrated Navigation ◽

Integrated Navigation System ◽

Efficient Management ◽

Reduce Energy Consumption ◽

Energy Efficiency Design Index ◽

Green Ship

AbstractThe paper analyses the role of control and monitoring of electro-energetic equipment in order to reduce operational costs, increase profits and reduce carbon emissions. The role of SCADA and EcoStruxure Power systems is presented and analysed taking into account the energy consumption and its savings. The paper presents practical and modern solutions to reduce energy consumption by up to 53%, mass by up to 47% and increase the life of the equipment by adjusting the electrical parameters. The Integrated Navigation System has allowed an automatic control and an efficient management. For ships, the implementation of an energy efficiency design index and new technologies was required for the GREEN SHIP project.

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Regulation of Electricity Storage, Intelligent Grids, and Clean Energies in an Open Market in Mexico

10.1093/oso/9780198822080.003.0010 ◽

2018 ◽

Author(s):

José Juan González Márquez ◽

Margarita González Brambila

Keyword(s):

Energy Storage ◽

Energy Supply ◽

Carbon Dioxide Emission ◽

Energy Transition ◽

Legal Framework ◽

Open Market ◽

Innovative Strategy ◽

Electricity Storage ◽

Storage Technologies

This chapter analyses the role of electricity storage as an innovative strategy to attain the Mexican Government’s goals regarding carbon dioxide emission reduction and energy transition. The survey includes the analysis of the different electricity storage technologies as well as the legal framework governing electricity storage as the fifth link of the energy supply chain from a comparative perspective. The authors discuss whether energy storage is a generation or a distribution/transmission asset. The chapter also analyses Mexico’s experiences in energy storage and briefly describes the way it is regulated in other jurisdictions. Finally, the authors propose the regulation of energy storage as a separate licensed activity.

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Optimal Energy Storage Portfolio for High and Ultrahigh Carbon-Free and Renewable Power Systems

Energy & Environmental Science ◽

10.1039/d1ee01835c ◽

2021 ◽

Author(s):

Omar J Guerra ◽

Joshua Eichman ◽

Paul Denholm

Keyword(s):

Energy Storage ◽

Power Systems ◽

Short Duration ◽

Current Literature ◽

Optimal Energy ◽

Renewable Power ◽

Long Duration ◽

Storage Technologies

Achieving 100% carbon-free or renewable power systems can be facilitated by the deployment of energy storage technologies at all timescales, including short-duration, long-duration, and seasonal scales; however, most current literature...

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