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.
Results
Showing 1 to 20 of 83 for “"Peak demand"”.
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Impact of solar water heating on Eskom's peak demand
Includes abstract. Includes bibliographical references (p. 98-102).
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An Expert-based Approach for Grid Peak Demand Curtailment using HVAC Thermostat Setpoint Interventions in Commercial Buildings
… dissertation explores the idea of inducing grid peak demand curtailment by turning commercial buildings into interactive assets for building owners during the demand control period. The work presented here is useful for both ab initio design of new sites and for existing or retrofitted sites. An …
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Integration of electric vehicles into power systems
… facing various challenges, such as increasing demand, and large-scale electric vehicle (EV) penetration. These challenges have a negative impact on the reliability and sustainability of the power system. For instance, EV charging represents an intensive electric load. Their penetration into the …
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Prediction of peak energy demand and timestamping in commercial supermarkets using deep learning
Peak demand consumption is an ongoing research topic due to current environmental concerns. Accurate prediction of peak demand leads to improved power storage scheduling and smart grid management. However, existing researches on peak demand in commercial buildings lack focus on the timestamps for …
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Demand side management (DSM) for efficient use of energy in the residential sector in Kuwait: analysis of options and priorities.
… to take action to meet the increased energy demand. A particular challenge is peak summer demand when extreme heat increases air conditioning loads. Peak demand reached 8900 MW in 2006, with a growth fast at an average rate 5.6% during the last decade. The generated energy reached 47605 GWh …
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Power Line Communication for Low-Data-Rate Energy Control
Peaks in electricity demand shape power system operations at various scales. In large buildings, fees based on monthly demand peaks can comprise 30–70% of electricity bills. In sections of distribution grids, demand peaks can stress transformers, increasing the risk of equipment failure. …
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Cyclic irrigation of turfgrass using a shallow saline aquifer
… was applied using cyclic irrigation during peak demand months (May--Oct). Treatments consisted of cycling saline water through the existing irrigation systems. Saline substitution of fresh water was set at 1, 2, 3 and 4 times per 7 freshwater irrigation events. Irrigations were applied using …
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Disaggregation and classification of residential water events from high-resolution smart water meter data using unsupervised machine learning methods
… the barrier of implementation for the model. Peak demand times for each day were determined and water use profiles were analyzed to identify seasonal, weekly, and daily trends. These results provide insight into opportunities to reduce water consumption within the household, including the …
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Design and Optimization of a Mobile Hybrid Electric System to Reduce Fuel Consumption
… standalone generators are sized to meet peak demand, even though peak demand only occurs during short intervals each day. The average daily demand is much less, meaning generators will be running inefficiently most of the day. In this thesis, a simulation is created to help determine an …
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A Deep Learning-based Dynamic Demand Response Framework
… grid operation through applications such as the Demand Response (DR). DR is an application through which electric power consumption during the peak demand periods can be curtailed. DR applications ensure an economic and stable operation of the electric grid by eliminating grid stress conditions. …
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Energy, exergy and exergoeconomic analyses of gas-turbine based systems
… a Brayton cycle, is considered for analysis. The peak demand for electric power in the City of Makkah occurs in the middle of the day during the summer and is almost double the off-peak demand. The plant employs turbines of two world renowned manufacturers. However, there are many mechanical and …
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Climate control : smart thermostats, demand response, and energy efficiency in Austin, Texas
Energy efficiency and demand response are critical resources for the transition to a cleaner electricity grid. Demand-side management programs can reduce electricity use during peak times when power is scarce and expensive, and they can help to integrate intermittent renewable energy resources by …
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The Impact of Thermostat Automation and Retail Rate Designs on Cooling and Heating Flexibility: Balancing Consumer Preferences and an Efficient Grid
… for improving grid efficiency and reducing peak electricity demand. The ongoing impact of climate change and the move towards electrification worsen these challenges, emphasizing the need for effective peak demand reduction strategies. Current approaches often involve peak pricing retail …
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Aggregator-Assisted Residential Participation in Demand Response Program
The demand for electricity of a particular location can vary significantly based on season, ambient temperature, time of the day etc. High demand can result in very high wholesale price of electricity. The reason for this is very short operating duration of peaking power plants which require large …
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Designing Electricity Distribution Network Tariffs for Beneficial Electrification
… are projecting sharp rises in distribution-level peak demand, which will necessitate network upgrades whose costs are recovered from all grid users. Alternative rate designs can help mitigate the need for these upgrades by shifting new demand away from peak periods. However, there is an emerging …
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The power-gas demand impacts and regulatory implications for the future of gas systems under the electrification of space heating in cold climates
… as that of the U.S. New England region, the high demand for heating in cold climates elicits concerns about energy demand impacts. Furthermore, there is concern about what electrification and the broader call for decarbonization might imply for gas distribution systems, which will face declining …
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Electricity system planning with distributed energy resources : new methods and insights for economics, regulation, and policy
… resources (DERs), flexible and price-responsive demand, and distribution network losses and reinforcement costs. New methods are developed and demonstrated to derive the aggregate impact of demand and DERs on distribution network losses and upgrade costs from detailed distribution network …
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Elastic database systems
… in load, or because of rapid growth in demand due to a company's business success. In addition, many OLTP workloads are heavily skewed to "hot" tuples or ranges of tuples. For example, the majority of NYSE volume involves only 40 stocks. To manage such fluctuations, many companies …
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Modeling and prediction of residential service transformer’s demand considering high penetration of electric vehicles
… assessment. Traditional sizing methods based on peak demand and diversity factors fail to capture the dynamic, time-varying nature of residential loads influenced by electric vehicles charging. In this thesis, a data-driven model is developed to predict the transformer’s demand when considering …
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