Small Scale Pumped Thermal Energy Storage Modeling and Optimization

Variable green energy sources were sought to supply the growing demand for energy without impacting the environment. Wind and solar energy are at the forefront of the energy transition. However, their intermittent nature poses a challenge that necessitates the development of energy storage technologies. <br/>Several technologies were studied...

The effect of short term storage operation on resource adequacy

The potential contribution of short term storage technologies such as batteries to resource adequacy is becoming increasingly important in power systems with high penetrations of Variable Renewable Energy Sources (VRES). However, unlike generators, there are multiple ways in which storage may be operated to contribute to resource adequacy. We...

Coherency of the European resource adequacy framework

The European Union (EU)'s resource adequacy framework consists of the reliability standard calculation, adequacy assessments and capacity remuneration mechanisms, three pillars which should conspire to deliver a realised adequacy in liberalised markets which is close to that which would be delivered by a central planner minimising total system...

Valuation of electricity storage contracts based on the COS method: with underlying polynomial electricity prices

In this thesis we introduce valuation techniques to price electricity storage contracts, where the electricity prices follow a structural model based on polynomial processes. In particular we focus on a Fourier-based pricing method known as the COS method, which performs impressively to price the contracts accurately. We provide details on how...

To Store or Not to Store: A Q-Methodological Study into the Influence of Perceived Needs and Factors on the Implementation of Electrical Storage Applications in the Dutch Power Grid

Modern society is highly dependent on the reliable supply of affordable electricity. To ensure a sustainable future, this energy should be derived from renewable generation systems. The intermittent output of such systems makes it hard to maintain the so-called grid balance, which can lead to the malfunctioning of the current power grid. Adding...

Low voltage power grid congestion reduction using a community battery: Design principles, control and experimental validation

By installing a battery storage system in the power grid, Distribution Network Operators (DNOs) can solve congestion problems caused by decentralized renewable generation. This paper provides the necessary theory to use such a community battery for grid congestion reduction, backed up by experimental results. A simple network model was...

Risk mitigation and investability of a U-PHS project in the Netherlands

We review the status of a 1.4 GW, 8 GWh underground pumped hydro storage (U-PHS) project in the southern Netherlands, which has been under development since the 1980s. Its history shows how the prospect of a large-scale U-PHS for The Netherlands (a country whose proverbial flatness prohibits PHS) has been attractive in every decade, based on...

100% renewable energy system in Japan: Smoothening and ancillary services

In the aftermath of the Paris Agreements, many countries around the globe have pledged to reduce the amount of greenhouse gas emissions being released into the atmosphere. To do so, it is important that the amount of renewable energy in the electricity grid increases. However, there are worries of the capacity of the grid to cope with...

Local Hydroelectric Energy Storage: A feasibility study about a small scale energy storage system combining hydropower, gravity power, spring power and air pressure

Renewable energy sources, like wind- and solar power, are expected to generate a greater part of the electricity production in the Netherlands each upcoming year. Besides all the advantages, the energy supply of these renewable energy sources fluctuates heavily as they mainly depend on the amount of wind and sun. Therefore, the electricity...

Pumped hydropower storage in the Netherlands

Introduction While the world moves towards modern renewable energy sources, these sources are not always available which makes them unreliable. At the same time, problems of balancing the daily peak-demand is still performed with expensive fossil fueled units. Sitting perfectly in between supply and demand is a solution with the potential of...

Cost and benefit analysis of storage technology opportunities in wind power curtailment and time-shift benefit for wind farms

The integration of renewables in electricity systems and urban areas loads have resulted in a wide daily price variation with overnight and off-peak prices which are far less than the prices in peak times or high demand period. The high difference in electricity prices makes it desirable to capture through some storage (technological) solution...

Bulk Electricity Sea Transport from Remotely Located Power Plants

Electricity is one of the most utilized energy carriers for energy transmission in the world. In recent years more electricity is generated from renewable energy sources. The main drawback of renewable energy sources is that renewable energy power plants are often connected to certain locations. Sometimes these renewable energy power plants are...