Responsive Demand In Isolated Energy Systems
Author(s)
D. Livengood, F. C. Sim-Sim, C. S. Ioakimidis & R. Larson
Abstract
To make islands more economically and environmentally sustainable, there is
interest in expanding local renewable sources of electricity generation to displace
portions of electric energy generated by fossil fuels. Integrating these inherently
weather-dependent and variable sources is a challenge for grid stability.
Responsive demand has long been used as a resource for peak management in
both island and mainland systems. We discuss potential benefits of expanding
responsive demand to help displace electric energy generated by fossil fuel
power plants by adjusting the shape of the demand curve to increase use of
electricity generated by renewable sources. Our methods also apply to
renewable generation capacity expansion decisions.
Keywords: responsive demand, integrating renewables, island electricity
systems.
1 Introduction
Due to the obvious hardships of being an isolated electrical system, it is a
challenge to provide stable and quality electricity service to a small island, or
group of islands. Because of their small size, these systems often rely on fossil
fuel power plants, most commonly diesel units, as these units are easily
dispatched and reliable. However, the reliance on externally processed fuels for
geographically isolated systems results in a higher cost for each energy unit
produced when compared with mainland systems. The absence of self-reliance
in such systems is an impoverishing factor that adds to the costs of insularity and
diminishes the attractiveness of the island economically Zhang et al [1]. While
there are a number of strategies that could all play a role in reducing reliance on
imported fossil fuel, the focus of this paper is on the approach of expanding or
Keywords
responsive demand, integrating renewables, island electricitysystems
Related Book
Other papers in this volume
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