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This paper presents a market-based transmission expansion planning model and compares it with a traditional reliability-based transmission planning model. Reliability-based transmission planning tries to install new lines at minimal cost while fulfilling system reliability criteria. Market-based transmission planning, on the other hand, seeks investment opportunities so that network expansions can...
Transmission congestion is a major economic and reliability concern in today's electric power systems. However, as the industry undergoes changes, it becomes critically important to better understand the fundamental role of transmission and its technical and financial effects on the electricity provision. Thermal limits, voltage drop regulation, and voltage stability limits are among the most common...
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...
This paper provides an overview of the current status of the transmission system in the Southern Companies' service areas in Georgia, Alabama, northwest Florida, and coastal Mississippi including a discussion of the approaches utilized in planning and expanding the transmission system. The paper also discusses current and emerging challenges in ensuring safe, reliable, and economical system expansion...
In economic valuation - cost-benefit analysis - of transmission upgrades under competitive market environment, cost of transmission facilities is determined based on the annual carrying charge and benefit is defined based on the concept of `social welfare maximization'. A transmission upgrade is chosen to be built when its benefit exceeds its cost plus some percentage adder to account for future uncertainty...
Electric power systems are extremely complex. Therefore, system operators and planners are faced with difficult problems, which are uncertainty of power system. Also, they have to obtain best efficiency with least cost of investment. Transmission network expansion planning (TNEP) vases on reliability, and considers economic aspect. This paper presents well-being method and cost-optimization method...
This paper proposes a method for choosing the best transmission system expansion plan(TSEP) using nodal/bus delivery marginal rate criterion (BMRk) defined newly in this paper. The objective method minimizes a total cost which is an investment budget for constructing new transmission lines subject to the BMRk which means a nodal deterministic reliability level requirement at specified load point....
The transmission system in New Zealand has not had any significant new build for some thirty years. Transpower New Zealand Limited is the owner and operator of the grid and is responsible for developing transmission proposals for approval by and independent regulator. Investment proposals have be able to demonstrate that non-transmission alternatives have been appropriately considered. As part of...
This paper discusses transmission pricing and planning in the newly created regional electricity market in central America, the first in the world to implement a regional "jurisdiction" where a regulatory commission operates. The regional operator, regulatory framework and market rules, accompany the infrastructure of a regional network that adds to the existing inter-connectors a new 230...
To incorporate large-scale wind generation in the Midwest ISO footprint, bulk transmission planning is necessary. In this paper, transmission planning for large-scale wind power is explained in detail. In expansion planning, the wind generation capacities are estimated from state Renewable Portfolio Standards (RPS) and the wind generator locations are chosen based on best wind source zones. From economic...
As the electrical power industry is restructured, the electrical power exchange is becoming extended. One of the key information used to determine how much power can be transferred through the network is known as available transfer capability (ATC). To calculate ATC, traditional deterministic approach is based on the severest case, but the approach has the complexity of procedure. Therefore, novel...
In this paper, we describe an economic model of market-based transmission planning, employed at PJM Interconnection, the largest regional transmission organization (RTO) in the U.S. We call this model the ldquoMarket Efficiency Analysisrdquo model. The salient feature of this model is that it is based on the forecasted congestion in the PJM system for future years, based on the best possible system...
The SuperOPF provides a framework linking the short-run criterion of "operating reliability" and the long-run criterion of "system adequacy" on an AC network. This is accomplished by allowing for load shedding as an expensive option to meet contingencies. The high cost of "energy-not-served" implies that some equipment can be very valuable in contingencies if it reduces...
In a competitive electricity market, the transmission costs should be fairly distributed amongst the users of the transmission facilities, in order to attain optimal usage of the transmission facilities and to provide correct economic signal for future generation planning and load placement. In this paper, transmission costs are divided into three components; i.e. actual transmission usage cost, unused...
Transmission network was recognized as natural monopoly and almost everywhere subject to some kind of regulation in a restructured electricity market. The role of the transmission system is to provide an indiscriminate access for all market players along with an acceptable level of reliability and security. Regulating authorities have to decide about the augmentation investment. As an on going research...
The ISO New England planning process calls for providing reliability, economic, and environmental information to participants. This includes summaries of loss of load expectation studies, transmission adequacy evaluations, environmental issues and performance, and locational marginal pricing, production cost, and congestion information. Short term certainty of resources is provided by the forward...
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