A Nationwide Survey of Recorded Information Used for Calculating Distribution Reliability Indices

Warren,; pearson, Pearson; Sheehan,

doi:10.1109/mper.2002.4312429

Cited by 5 publications

(5 citation statements)

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“…Customer Average Interruption Duration Index (CAIDI) describes the average length of the interruption once it happens and System Average Interruption Frequency Index (SAIFI) describes how many times in a year an average customer in the system experiences an interruption. Besides these established reliability indices, a new index CIC/kWh, in which total customer interruption costs (CIC) are divided by total customer Energy consumption, has introduced [15,16]. The effect of various ways of improving reliability could then be evaluated by the impact they have on reducing customer damage.…”

Section: System Reliability Indicesmentioning

confidence: 99%

Improving reliability in an urban network

Siirto¹,

Hyvärinen²,

Loukkalahti³

et al. 2015

Electric Power Systems Research

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Section: System Reliability Indicesmentioning

confidence: 99%

Improving reliability in an urban network

Siirto¹,

Hyvärinen²,

Loukkalahti³

et al. 2015

Electric Power Systems Research

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“…Although SAIDI and SAIFI are useful for assessing the costs and effects of power interruptions, these data are often either not collected by utilities or are collected inconsistently (Warren et al 2003). That is, the information collected by utilities, if it is collected (and reported) at all, varies in the details or variables that are recorded.…”

Section: Reliability Eventsmentioning

confidence: 99%

Understanding the cost of power interruptions to U.S. electricity consumers

LaCommare¹,

Eto²

2004

130

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The massive electric power blackout in the northeastern United States and Canada on August 14-15, 2003 resulted in the U.S. electricity system being called "antiquated" and catalyzed discussions about modernizing the grid. Industry sources suggested that investments of $50 to $100 billion would be needed. This report seeks to quantify an important piece of information that has been missing from these discussions: how much do power interruptions and fluctuations in power quality (power-quality events) cost U.S. electricity consumers? Accurately estimating this cost will help assess the potential benefits of investments in improving the reliability of the grid.We develop a comprehensive end-use framework for assessing the cost to U.S. electricity consumers of power interruptions and power-quality events (referred to collectively as "reliability events").The framework expresses these costs as a function of:• Number of customers by type in a region;• Frequency and type of reliability events experienced annually (including both power interruptions and power-quality events) by these customers; • Cost of reliability events; and• Vulnerability of customers to these events.The framework is designed so that its cost estimate can be improved as additional data become available.Using our framework, we estimate that the national cost of power interruptions is about $80 billion annually, based on the best information available in the public domain. However, there are large gaps in and significant uncertainties about the information currently available. Notably, we were not able to develop an estimate of power-quality events. Sensitivity analysis of some of these uncertainties suggests that the total annual cost could range from less than $30 billion to more than $130 billion. Because of this large range and the enormous cost of the decisions that may be based on this estimate, we encourage policy makers, regulators, and industry to jointly undertake the comparatively modest-cost improvements needed in the information used to estimate the cost of reliability events. Specific areas for improvement include: coordinated, nationwide collection of updated information on the cost of reliability events; consistent definition and recording of the duration and frequency of reliability events, including powerquality events; and improved information on the costs of and efforts by consumers to reduce their vulnerability to reliability events.

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“…Failure to meet these standards results in financial penalties for the utility. Four of these standards are as follows: 4. In each state, the five worst-performing distribution circuits will be improved by 20% over a 2-year period.…”

Section: Valuing Reliabilitymentioning

confidence: 99%

Measurement Practices for Reliability and Power Quality

Kueck¹

2005

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A Nationwide Survey of Recorded Information Used for Calculating Distribution Reliability Indices

Cited by 5 publications

References 0 publications

Improving reliability in an urban network

Improving reliability in an urban network

Understanding the cost of power interruptions to U.S. electricity consumers

Measurement Practices for Reliability and Power Quality

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