The challenge of managing the present and projected electricity energy needs along
with targets of mitigating CO2 emissions leads to the need for energy systems to reduce
reliance on fossil fuels and rely on more energy from renewable sources. The
integration of more renewable energy technologies to meet present and future electricity
demand leads to more challenges in matching the trade-o between economic,
resilient, reliable and environmentally friendly solutions. Energy storage technologies
can provide temporal resilience to energy systems by solving these challenges. Energy
storage systems can improve the reliability of energy systems by reducing the
mismatch between supply and demand due to the intermittency of renewable energy
sources.
This thesis presents a comprehensive analysis of various energy storage systems,
analyzing their speci c characteristics including capital cost, e ciency, lifetime and
their usefulness in di erent applications. Di erent hybrid energy systems are designed
to analyze the impacts of renewable and non-renewable energy sources and
energy storage systems in residential on-grid and o -grid buildings and districts. An
optimization analysis is performed to determine which technology combinations provide
the most economic solution to meet electric energy demands. The optimization
analysis is solved using the "energy hub" model formulation which optimizes energy
system operation and capacity of di erent technologies. Di erent energy systems can
be optimized by using energy hub model, including multiple input energy carriers
that are converted to multiple energy outputs. The analysis in this thesis employs a
building simulation tool to model residential building, and real data sets to explore
the di erent electricity pro le e ects on the results. The environmental e ect of hybrid
energy systems comparing with base cases of conventional energy systems or grid
connection are also analyzed.
Results show that the feasibility of energy storage systems is a factor of di erent
variables including capital cost of energy converters and energy storage systems, cost
of input streams (grid electricity in on-grid systems and diesel fuel in o -grid systems,
energy demand pro les and availability of renewable energy sources. The on-grid
single and district buildings do not select storage technologies at current costs due
to cheap grid electricity. Reduction in the cost of renewable energy technologies
and/or energy storage systems (e.g. Li-ion batteries) results in more energy storage
installations. In o -grid systems (single buildings and districts), Li-ion battery and pumped hydro are the main storage systems that can balance the daily and seasonal
energy demands. / Graduate / 2021-03-13
| Identifer | oai:union.ndltd.org:uvic.ca/oai:dspace.library.uvic.ca:1828/11725 |
| Date | 05 May 2020 |
| Creators | Rahimzadeh, Azin |
| Contributors | Evins, Ralph |
| Source Sets | University of Victoria |
| Language | English, English |
| Detected Language | English |
| Type | Thesis |
| Format | application/pdf |
| Rights | Available to the World Wide Web |
Page generated in 0.0019 seconds