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A vision of the smart grid as an agent of economic value creation is needed to understand the paradigm shift that will be unfolding over the next few decades in the electricity market. This paper presents one such vision of the smart grid from an electricity market perspective and discusses its technical underpinnings. In contrast with the current mix of traditional and renewable resources, the smart...
We propose a framework for reducing demand-supply imbalances in the grid, by jointly controlling both the supply-side electric power regulation together with the demand-side energy consumption by residential and commercial consumers demand response. We focus on performance improvements that arise from the complementary dynamics: regulation allows for frequent control updates but suffers from slower...
The smart grid effort is the single largest grid modernization investment in American history. What began as a theoretical idea has increasingly become a reality. Close to $10 billion in investments from both government and industry will introduce major activities in the next 3-5 years as the main momentum of the energy industry transformation. As grid development proceeds, it is necessary to realize...
In order to gain the most from their deployment, it is imperative for stakeholders to exploit the main benefits electric vehicles bring to utilities. Therefore, this paper focuses on the aspects required to model the management of electricity supply for electric vehicles. The framework presented details a time coordinated optimal power flow (TCOPF) tool to illustrate the tradeoffs distribution network...
This paper gives an overview of grid impact indicators that could be used to assess the impact of the energy exchange with a single intelligent building on the electricity grid. Seven indicators are given, the capacity factor, loss of load probability, cover factor, one percent peak power, peaks above limit, dimensioning rate and kVA credit. An example of a building simulation is used to show what...
DR (Demand response) has an important role in electricity power market by reducing load quantity instead of increasing generation for balancing demand and supply. DR resources are regarded as an extra tool of balancing supply and demand in emergency condition. Also, DR resources can be used in normal condition or used for the purpose of maintaining the reserve rate. Because of the characteristics...
Smart grid support for demand response provides strategies for an electricity service provider to shed loads during peak usage periods with minimal consumer inconvenience. Direct load control is a strategy for doing this in which consumers enroll appliances such as electric water heaters, air conditioners, and battery vehicles in a program to respond to load shed instructions in exchange for a discount...
Recently, a massive focus has been made on demand response (DR) programs, aimed for electricity price reduction, transmission lines congestion resolving, security enhancement and improvement of market performance. The paper develops a method for optimally selecting the locations of DR programs in the network together with their capacities to achieve the maximum technical benefits derived from the...
Power system model integrity is essential to many planning and operation tasks to ensure the safety and reliability of electricity delivery. Inaccurate system models would result in unreliable assessment of system security conditions and cause large-scale blackouts such as the 2003 Northeast Blackout. This dictates a strong need for knowing the sensitivity of the model to errors in certain input variables...
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