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"TRANSMISSION ORGANIZATION"
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Price Impacts of Energy Transition on the Interconnected Wholesale Electricity Markets in the Northeast United States
by
Zarnikau, Jay W.
,
Qi, Han Steffan
,
Cao, Kang Hua
in
Alternative energy
,
Alternative energy sources
,
Carbon
2025
Our regression analysis documents that energy policies to promote renewable energy development, as well as hydroelectric imports from Canada, lead to short-run reductions in average electricity prices (also known as merit-order effects) throughout the Northeast United States. Changes in the reliance upon renewable energy in one of the Northeast’s three interconnected electricity markets will impact wholesale prices in the other two. The retirement of a 1000 MW nuclear plant can increase prices by about 9% in the Independent System Operator of New England market and 7% in the New York Independent System Operator market in the short run at reference hubs, while also raising prices in neighboring markets. Some proposed large-scale off-shore wind farms would not only lower prices in local markets at the reference hubs modeled but would also lower prices in neighboring markets.
Journal Article
Can capacity markets be designed by democracy?
2018
In the United States, Regional Transmission Organizations (RTOs) operate the power grid serving nearly 70% of electricity customers and are critical organizations for ensuring reliable system operations and facilitating the integration of new technologies and market participants. RTOs are designed to be stakeholder-driven organizations, with rules and policies crafted through a highly participatory process. While the decisions that RTOs make have implications for industry, society and the environment, their decision processes have not been modeled in any systematic way. In this paper, we develop a modeling framework for the stakeholder process of PJM, an RTO serving thirteen states plus the District of Columbia, adapting some of the seminal literature from political science and political economy on the theory of voting systems. This modeling framework can generate predictions of stakeholder process outcomes, identify strong coalitions among stakeholders and identify shifts in political power in the formulation of RTO market rules. We illustrate this analysis framework using a detailed data set from stakeholder deliberations of capacity market reform in PJM. Our model predicts that the current structure of the stakeholder process in PJM makes the passage of capacity market reforms through the stakeholder process virtually impossible because it creates strong coalitions that would favor or oppose changes to capacity market rules. In the capacity market case, we also identify a small subset of voters that act as swing voters and confirm that political power is shifted to these voters by deviations from otherwise strong coalitions and abstentions from the voting process altogether. Our framework represents the first attempt to model the decision-making behavior of RTOs in any systematic way, and points towards emerging research needs in evaluating the governance structure of RTOs.
Journal Article
Transmission expansion for renewable energy scale-up
2012,2011
Scaling up renewable energy, such as wind and solar, goes hand-in-hand with the expansion of transmission infrastructure. The richest solar and wind renewable energy sites are often located far away from consumption centers or existing transmission networks. Unlike fossil fuel-based power sources, renewable energy sources are greatly site-constrained and, for this reason, transmission networks need to be expanded to reach the renewable energy sites. Delivering transmission is a challenge, given the dispersion and granularity of renewable sources. Tapping a few hundred megawatts of renewable energy sources, such as wind and solar power, will likely require delivering transmission to several sites. Furthermore, transmission is also required to smooth out the variability of new renewable sources in a large geographical area. For these reasons, countries' renewable energy scale-up efforts are being challenged by the need for timely and efficient delivery of transmission networks. The objective of this report is to present emerging lessons and recommendations on approaches to efficiently and effectively expand transmission networks for renewable energy scale-up. The report focuses on the planning and regulatory aspects of transmission expansion that are relevant to transmission utilities and electricity regulators.
Practical guidance for defining a smart grid modernization strategy
2015
This report provides some practical guidance on how utilities can define their own smart grid vision, identify priorities, and structure investment plans. While most of these strategic aspects apply to any area of the electricity grid, the document focuses on the segment of distribution. The guidance includes key building blocks that are needed to modernize the distribution grid and provides examples of grid modernization projects. Potential benefits that can be achieved (in monetary terms) for a given investment range are also discussed. The concept of the smart grid is relevant to any grid regardless of its stage of development. What varies are the magnitude and type of the incremental steps toward modernization that will be required to achieve a specific smart grid vision. Importantly, a utility that is at a relatively low level of grid modernization may leap frog one or more levels of modernization to achieve some of the benefits offered by the highest levels of grid modernization. Smart grids impact electric distribution systems significantly and sometimes more than any other part of the electric power grid. In developing countries, modernizing the distribution grid promises to benefit the operation of electric distribution utilities in many and various ways. These benefits include improved operational efficiency (reduced losses, lower energy consumption, amongst others), reduced peak demand, improved service reliability, and ability to accommodate distributed generating resources without adversely impacting overall power quality. Benefits of distribution grid modernization also include improved asset utilization (allowing operators to 'squeeze' more capacity out of existing assets) and workforce productivity improvement. These benefits can provide more than enough monetary gain for electric utility stakeholders in developing countries to offset the cost of grid modernization. Finally the report describes some funding and regulatory issues that may need to be taken into account when developing smart grid plans.
Price effects of independent transmission system operators in the United States electricity market
2013
In 1996, the Federal Energy Regulatory Commission (FERC) sought to “remove impediments to competition in the wholesale bulk power marketplace and to bring more efficient, lower cost power to the Nation’s electricity consumers” through a series of market rules. A product of these rules was the establishment of regional transmission organizations (RTOs) and independent system operators (ISOs) charged with facilitating equal access to the transmission grid for electricity suppliers. Whether these changes in market structure have succeeded in achieving FERC’s goal to provide “lower cost power to the Nation’s electricity consumers” remains an open question. This paper utilizes a panel data set of the 48 contiguous United States and a treatment effects model in first differences to determine whether there have been changes in delivered electric prices as a result of the establishment of ISOs and RTOs. To avoid the confounding effects of electric restructuring, the model is estimated with the full panel data set, and then again without the states that have restructured their electric markets. This estimation shows that electricity prices fall approximately 4.8 % in the first 2 years of an ISO’s operation and that this result is statistically significant. However, this result is dependent on the presence of states that restructured their electricity markets. When these restructured states are removed from the data set the price effects of RTOs become indistinguishable from zero. The paper concludes that rate agreements are the principal source of the observed decrease in prices and that RTOs have not had the desired effect on electricity prices.
Journal Article
Business Technology Strategy for an Energy Management Company
2010
This paper focuses on the development of a business technology strategy for an energy management company. EnDis1 manages the distribution of electric power to a specific geographic region, and is a regional transmission organization (RTO).2 The primary mission of EnDis is reliability and security. The case describes the process of developing a technology strategy for the company recognizing the unique mission the company has in maintaining electric power for their customers.
Journal Article
RADIAL APPROACH FOR UNIFIED EFFICIENCY MEASURES
by
Sueyoshi, Toshiyuki
,
Goto, Mika
in
Coal‐fired Power Plant
,
Independent System Operator
,
Radial Approach
2018
This chapter shifts our methodological interest from the non‐radial measurement discussed in Chapter 16 to radial measurement for DEA environmental assessment. The natural and managerial disposability concepts are incorporated into the proposed radial measurement, as well. As discussed in Chapter 13, coal is a primary energy source and some portion of coal consumption is used for electricity generation. The generation is a major source of air pollution in the United States. To document the practicality of the proposed approach, this chapter applies it to compare the performance of coal‐fired power plants under Independent System Operator (ISO) and Regional Transmission Organization (RTO) with that of the other power plants not belonging to ISO and RTO. See Chapter 14 on ISO and RTO. This chapter identifies two empirical findings. One of the two findings is that the latter coal‐fired power plants outperform the former power plants belonging to ISO and RTO in terms of three efficiency measures. This result indicates that ISO and RTO may not provide an effective coordination for coal‐fired power plants at the level that can be found in the other power plants. In other words, they have already shifted a fuel mix from coal to other types of fuels (e.g., natural gas, renewable and nuclear energies) under strict regulation on air pollution. Consequently, they have exhibited limited interest in the operation of coal‐fired electricity generation. The other finding is that there is a technology progress in the operation of US coal‐fired power plants.
Book Chapter
Epidemiology and transmission of COVID-19 in 391 cases and 1286 of their close contacts in Shenzhen, China: a retrospective cohort study
2020
Rapid spread of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in Wuhan, China, prompted heightened surveillance in Shenzhen, China. The resulting data provide a rare opportunity to measure key metrics of disease course, transmission, and the impact of control measures.
From Jan 14 to Feb 12, 2020, the Shenzhen Center for Disease Control and Prevention identified 391 SARS-CoV-2 cases and 1286 close contacts. We compared cases identified through symptomatic surveillance and contact tracing, and estimated the time from symptom onset to confirmation, isolation, and admission to hospital. We estimated metrics of disease transmission and analysed factors influencing transmission risk.
Cases were older than the general population (mean age 45 years) and balanced between males (n=187) and females (n=204). 356 (91%) of 391 cases had mild or moderate clinical severity at initial assessment. As of Feb 22, 2020, three cases had died and 225 had recovered (median time to recovery 21 days; 95% CI 20–22). Cases were isolated on average 4·6 days (95% CI 4·1–5·0) after developing symptoms; contact tracing reduced this by 1·9 days (95% CI 1·1–2·7). Household contacts and those travelling with a case were at higher risk of infection (odds ratio 6·27 [95% CI 1·49–26·33] for household contacts and 7·06 [1·43–34·91] for those travelling with a case) than other close contacts. The household secondary attack rate was 11·2% (95% CI 9·1–13·8), and children were as likely to be infected as adults (infection rate 7·4% in children <10 years vs population average of 6·6%). The observed reproductive number (R) was 0·4 (95% CI 0·3–0·5), with a mean serial interval of 6·3 days (95% CI 5·2–7·6).
Our data on cases as well as their infected and uninfected close contacts provide key insights into the epidemiology of SARS-CoV-2. This analysis shows that isolation and contact tracing reduce the time during which cases are infectious in the community, thereby reducing the R. The overall impact of isolation and contact tracing, however, is uncertain and highly dependent on the number of asymptomatic cases. Moreover, children are at a similar risk of infection to the general population, although less likely to have severe symptoms; hence they should be considered in analyses of transmission and control.
Emergency Response Program of Harbin Institute of Technology, Emergency Response Program of Peng Cheng Laboratory, US Centers for Disease Control and Prevention.
Journal Article
A systematic review on the causes of the transmission and control measures of outbreaks in long-term care facilities: Back to basics of infection control
by
Lee, Min Hye
,
Lee, Seong Hyeon
,
Park, Yeon-Hwan
in
Bias
,
Communicable diseases
,
Cross Infection - epidemiology
2020
The unique characteristics of long-term care facilities (LTCFs) including host factors and living conditions contribute to the spread of contagious pathogens. Control measures are essential to interrupt the transmission and to manage outbreaks effectively.
The aim of this systematic review was to verify the causes and problems contributing to transmission and to identify control measures during outbreaks in LTCFs.
Four electronic databases were searched for articles published from 2007 to 2018. Articles written in English reporting outbreaks in LTCFs were included. The quality of the studies was assessed using the risk-of-bias assessment tool for nonrandomized studies.
A total of 37 studies were included in the qualitative synthesis. The most commonly reported single pathogen was influenza virus, followed by group A streptococcus (GAS). Of the studies that identified the cause, about half of them noted outbreaks transmitted via person-to-person. Suboptimal infection control practice including inadequate decontamination and poor hand hygiene was the most frequently raised issue propagating transmission. Especially, lapses in specific care procedures were linked with outbreaks of GAS and hepatitis B and C viruses. About 60% of the included studies reported affected cases among staff, but only a few studies implemented work restriction during outbreaks.
This review indicates that the violation of basic infection control practice could be a major role in introducing and facilitating the spread of contagious diseases in LTCFs. It shows the need to promote compliance with basic practices of infection control to prevent outbreaks in LTCFs.
Journal Article
An integrated, multidisciplinary management team intervention to improve patient-centeredness, HIV, and maternal-child outcomes in Lesotho: formative research on participatory implementation strategies
by
Tiam, Appolinaire
,
Mokone, Majoalane
,
Mofenson, Lynne
in
Acquired immune deficiency syndrome
,
Adult
,
AIDS
2024
Background
Reducing perinatal HIV transmission and optimizing maternal and child health (MCH) outcomes in high HIV prevalence settings is an urgent, but complex, priority. Extant interventions over-emphasize individual-level provider and patient behaviors, and neglect critical health systems-level changes. The ‘Integrated Management Team to Improve Maternal-Child Outcomes (IMPROVE)’ study implemented a three-part, patient-centered, health-systems-level intervention to improve MCH and HIV outcomes in Lesotho. Ensuring intervention fit within the health systems context is important, but often overlooked. This manuscript describes implementation research conducted to tailor and adapt intervention implementation to optimize appropriateness, acceptability, and feasibility. It identifies resulting implementation variation across study sites and lessons learned.
Methods
The research team reviewed intervention implementation documentation and conducted structured reflections to: 1) assess implementation strategy adaptations, 2) identify facility-specific strategies employed to improve the MCH patient experience, and 3) synthesize lessons.
Results
Facility-based, integrated, multi-disciplinary management teams (MDT) were feasible and acceptable to establish through engagement with facility leadership and facilitation of a participatory training curriculum that established shared values between cadres supporting MCH, and identified facility-specific service delivery gaps and potential solutions. Ongoing MDT meetings provided coordination between facility and community-based MCH service providers to implement early ANC follow-up. Facility-specific improvement strategies included fee, staffing, and patient documentation-based changes. Piloting Positive Health, Dignity, and Prevention-focused counseling approaches resulted in tailored job aids pre-implementation. Leadership involvement was critical for improved coordination while staff turnover and competing donor priorities challenged MDT efforts.
Conclusions
IMPROVE created facility-specific adaptation opportunities through participatory intervention implementation practices. The MDTs, benefitting from leadership support, built relationships between HCW cadres, led facility-specific quality improvements, and, importantly, offered HCWs sought-after positive feedback by recognizing HCW efforts. The coordination, monitoring and cross-cadre communication functions of the MDTs supported implementation of other interventions, and may serve as a valuable platform for improving patient-centered care practices in similar settings and for other health services. Trial registration number: NCT04598958, 05 October 2020, retrospectively registered.
Trial registration
ClinicalTrials.gov, NCT04598958. Registered 05 October 2020—Retrospectively registered,
https://clinicaltrials.gov/ct2/show/record/NCT04598958
Journal Article