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Demand Response (DR) provides mechanisms and incentives for utilities, business and residential customers to reduce energy use (and costs) during time of peak demand or when system reliability is at risk. DR is considered by CPUC, DOE and FERC as one of high-priority Smart-Grid Functionalities. FERC has developed a national action plan on demand response, recognizing that a more extensive use of demand...
The paper focuses on reliability assessment of power systems with wind power generation. A Monte Carlo based production cost simulation model is introduced in the paper. The model closely simulates actual system operation processes and takes system random behaviors into account. A simplified unit commitment method is created to fit the simulation for reliability evaluation purpose. The effects of...
A robust methodology for estimating the value of service reliability improvements is presented. Although econometric models for estimating value of service (interruption costs) have been established and widely accepted, analysts often resort to applying relatively crude interruption cost estimation techniques in assessing the economic impacts of transmission and distribution investments. This paper...
Simulation tools for analysis and design of distribution systems with distributed resources (DR) must include modeling capabilities for representing the various DR technologies. Since distribution systems were not designed for the inclusion of DR, most distribution software packages were not designed for the analysis of systems with embedded generation either. Present distribution tools can efficiently...
California Independent System Operator Corporation (CAISO) is a not-for-profit public benefit corporation in charge of managing the electricity flow along California's open-market wholesale power grid. Recently, the CAISO implemented the nodal LMP electricity market based on full network model and upgraded its infrastructure with new state of the art technology. The implementation of new electricity...
In this paper we describe an effort which is under way at Carnegie Mellon University (CMU) in the Electric Energy Systems Group (EESG). We refer to this effort as the Dynamic Monitoring and Decision Systems (DYMONDS) initiative. Its objective is to develop an Information Technology (IT)-enabled framework in support of sustainable evolution of today's electric power systems into future energy systems...
This paper proposes a framework for assessing wind energy conversion systems (WECS) reliability in the face of external disturbances, e.g. grid fault, and internal component faults. The proposed reliability assessment allows a quantitative analysis of WECS designs; analysis of WECS control schemes, e.g. fault ride-through mechanisms; identification of key design parameters that influence overall WECS...
Ireland has some of the most favourable wind conditions in the whole of Europe. Wind production, in the mainland as well as offshore, is expected to grow rapidly during the coming years, as evidenced by the fact that some 6000 MW of wind generation is currently awaiting connection to the grid onshore. Given the massive potential for the exploitation of renewable energy resources off the coast of Ireland,...
Southern California Edison Company, as well as the other California investor owned utilities are mandated to increase their Renewable Portfolio Standard to 20 percent by 2010 and by the Governor's Executive Order to 33 percent by 2020. When achieved, these types of energy resource assets potentially represent a significant means to meet State energy and environmental objectives. Edison is also embarking...
Both deterministic and probabilistic approaches can be used to establish spinning reserve requirements. It has been proved that determining reserve requirements based on probabilistic approaches results in more economical efficiency. So, a probabilistic security constraint unit commitment problem (SCUC) is used to clear energy and spinning reserve simultaneously and to determine system spinning reserve...
Renewable energy integration with the power systems will change the power systems in many ways. Renewable resources in remote areas will trigger extensive transmission upgrades to deliver green energy to the load centers. The intermittent and non-dispatchable characteristics of the renewable resources will impact both long-term system adequacy and real-time system security. Uncertainty of the development...
Plug-in hybrid electric vehicles (PHEVs) are the next big thing in the electric transportation market. While much work has been done to detail what economic costs and benefits PHEVs will have on consumers and producers alike, it seems that the more important question is “what impact will PHEVs have on distribution networks nationwide?”. This paper finds that the impact of PHEVs on the distribution...
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