Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 17 of 17 for “"Electricity Storage"”.
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Chemical Looping Electricity Storage
Developing grid-scale energy storage technologies is the key element for broader deployment of renewable sources of energy. This is due to bench-mark technologies like pumped hydro and compressed air being geographically restricted, i.e. require large reservoirs to store air/water, new storage …
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Electrically charged thermal energy storage systems for grid-level electricity storage
Unlike most other commodities, electricity produced at any given time must match the electricity being consumed or the stability of the electric grid is jeopardized. Electricity demand changes throughout the day result in required generation ramp-ups that strain power plants, reduce cycle …
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The value of electricity storage under large-scale penetration of renewable energy : a hybrid modeling approach
Due to the physics of electricity, and the current high costs of storage technologies, electricity generation and demand need to be instantaneously balanced at all times. The large-scale deployment of intermittent renewables requires increased operational flexibility to accommodate fluctuating and …
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The value of power grid flexibility : applied optimization methods for bulk electricity storage and technology RD&D
… new socio-political priorities, and renewable electricity resources, grid operators look to a more flexible grid. Electricity storage flexibility is one strategy gaining interest. Clean energy advocates see benefits in terms of greater renewables integration and lower emissions; grid operators …
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Thermal energy grid storage : liquid containment and pumping
… fuels, the key barrier to widespread sustainable electricity has become availability on demand. Energy storage can enable dispatchable renewables, but only with drastic cost reductions compared to current batteries. In this thesis, I investigate an electricity storage concept that stores …
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Essays in mineral and energy policy
… theoretical propositions on the interaction of electricity storage and tradable performance standards imposed on carbon emitted in the electricity sector. We find that the introducing electricity storage under a tradable performance standard reduces societal benefits relative to when storage is …
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Implementation of battery energy storage system for the electricity grid in Singapore
The market of grid-level electricity storage is growing rapidly, with a predicted market value of 1.6 billion in 2012 and 8.3 billion in 2016. Electrochemical storages such as lead-acid, nickel-cadmium, sodium-sulfur and lithium-ion batteries are candidates with high potential for grid-level …
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Analysis and optimisation of thermal energy storage
The focus of this project is the storage of thermal energy in packed beds for bulk electricity storage applications. Packed beds are composed of pebbles through which a heat transfer fluid passes, and a thermodynamic model of the heat transfer processes within the store is described. The packed …
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The effects of energy storage properties and forecast accuracy on mitigating variability in wind power generation
Electricity generation from wind power is increasing worldwide. Wind power can offset traditional fossil fuel generators which is beneficial to the environment. However, wind generation is unpredictable. Wind speeds have minute to minute variability which causes minute to minute generation to …
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USE OF GAS EMISSION BY BIOELECTROCHEMICAL APPROACHES FOR POWER-TO-X
… capable of con-verting surplus renewable electricity into valuable products within a circular and sustainable framework. Among these, Power-to-X (PtX) is emerging as a promising solution for energy conversion and storage. Bioelectrochemical systems (BESs) offers the possibility to couple …
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Utility business model innovation : a techno-economic and strategic analysis of distributed energy systems
… This thesis first provides a definition of the electricity services upon which business models in the utility industry are based. These definitions are grounded in linear programming and fundamental power system economics and technology. Next, this thesis provides an ontological taxonomy of …
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Design and evaluation of seasonal storage hydrogen peak electricity supply system
The seasonal storage hydrogen peak electricity supply system (SSHPESS) is a gigawatt-year hydrogen storage system which stores excess electricity produced as hydrogen during off-peak periods and consumes the stored hydrogen to produce electricity during peak periods of electricity demand. This …
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Power system energy imbalance settlement in deregulated electricity market
In regulated electricity market the difference between forecast demand and actual demand is balanced by additional generation from the cheapest available source after network security is taken into consideration. The electricity price to supply this difference in demand forecast error is already …
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Evaluating the Infrastructure Requirements of a Low-Carbon Hydrogen Supply Chain in Germany and theGulf Coast
… by a mix of renewables, large-scale hydrogen storage in the form of salt caverns, and hydrogen pipelines. The optimal power mix in the Gulf Coast consists of a majority of wind turbines, while Germany deploys a larger share of solar panels. The levelized cost of hydrogen, which includes …
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Low temperature glide cycles for energy storage applications: Thermodynamic and capital cost analysis
… the technologies being researched for grid-scale electricity storage, pumped thermal energy storage consists of storing electricity as thermal energy, with the conversions being done by a reversible heat pump/heat engine system. Advantages include the use of abundant and cheap materials, …
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A generation-integrated energy storage system for steam power plant
Large-scale energy storage systems typically withdraw electricity from the grid and transform it into another form for storage. When the grid is unable to meet demand, the process is reversed and the stored energy is transformed back into electricity. Instead of this traditional approach, the …
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Development and characterization of next generation batteries
Advances in electrochemical energy storage technology have the potential to revolutionize every aspect of society from transportation to the power grid. Despite significant advancements in Li-ion batteries over the last few decades, the current Li-ion battery has almost reached its limit in terms …