Lessons learned from California's experience on electric power deregulation

2005 ◽  
Author(s):  
N.K. Trehan
Keyword(s):  
Electric Power ◽  
Lessons Learned

Performance of lifelines during the 1994 Northridge earthquake

1995 ◽  
Vol 22 (2) ◽  
pp. 438-451 ◽  
Author(s):  
David L. Lau ◽  
Alex Tang ◽  
Jean-Robert Pierre
Keyword(s):  
Los Angeles ◽  
Electric Power ◽  
System Performance ◽  
Water Distribution ◽  
Lessons Learned ◽  
Northridge Earthquake ◽  
Epicentral Area ◽  
Lifeline Systems ◽  
Earthquake Damages ◽  
The Impact

Lifelines are essential infrastructures and facilities that are considered vital to the rescue effort and recovery of the affected community in the event of a natural disaster or emergency. The lifeline systems in a densely populated area, such as the Los Angeles basin, are very complex. The Northridge earthquake, which occurred in southern California on January 17, 1994, caused extensive damage to many of these lifeline facilities in the epicentral area. Effects of the damages were felt not only in the vicinity area of the earthquake but also in areas far from the earthquake site. This paper describes the earthquake damage to and performance of gas and water distribution and electric power and telecommunication systems. The impact of these failures on the overall system performance are presented. The significance and effect of the interdependency of life systems in an integrated urban environment are discussed. Lessons learned on system performance, seismic risk, and reliability of lifeline systems from the Canadian perspective are presented. Key words: earthquake damages, electric power, gas, lifelines, performance, risk, telecommunication, water.

Countermeasures Derived From the Lessons of the Fukushima Daiichi Nuclear Power Plant Accident

2013 ◽  
Author(s):  
Tadashi Narabayashi
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
Pacific Ocean ◽  
Electric Power ◽  
Nuclear Power ◽  
Safety Evaluation ◽  
Lessons Learned ◽  
The Other ◽  
Nuclear Accidents ◽  
Fukushima Daiichi

On March 11, 2011, Tokyo Electric Power Company’s Fukushima Daiichi Nuclear Power Plant (NPP) was hit by a tsunami caused by the Tohoku-Pacific Ocean Earthquake, resulting in nuclear accidents in Units #1 to #4. With the aim of improving the safety of NPPs worldwide, we summarize the lessons that have been learned following a thorough analysis of the event and make specific proposals for improving the safety of such facilities. The author has been involved in investigating the causes of the accidents and developing countermeasures for other NPPs in Japan as a member of the Committee for the Investigation of Nuclear Safety of the Atomic Energy Society of Japan [1], an advisory meeting member of NISA with regard to technical lessons learned from the Fukushima Daiichi NPP accidents, and a Safety Evaluation Member of NISA for the other NPPs in Japan [2].

scholarly journals Safety Enhancements for PHWRs Based on Macroscopic Losses of the Fukushima Accident

2015 ◽  
Vol 2015 ◽  
pp. 1-12
Author(s):  
Sang Ho Kim ◽  
Tsuneo Futami ◽  
Soon Heung Chang ◽  
Yong Hoon Jeong
Keyword(s):  
Electric Power ◽  
Heavy Water ◽  
Carbon Dioxide Emissions ◽  
Nuclear Power ◽  
Power Plants ◽  
Nuclear Power Plants ◽  
Plant Protection ◽  
Lessons Learned ◽  
Fukushima Accident ◽  
Water Reactors

The role of nuclear energy is to supply electric power on a stable basis to meet increasing demands, reduce carbon dioxide emissions, and maintain stable electric power costs while ensuring safety. The Fukushima accident taught us many lessons for creating safer nuclear power plants. Considering the design of systems, the areas of weakness at the Fukushima nuclear power plants can be divided into three categories: plant protection, electricity supply, and cooling of the nuclear fuel. In this paper, focusing on these three areas, the lessons learned are proposed and applied for pressurized heavy water reactors. Firstly, hard protection against external risks ensures the integrity of components and systems such that they can perform their original functions. Secondly, additional emergency power supply systems for electrical redundancy and diversity can improve the response capabilities for an accident by increasing the availability of active components. Thirdly, cooling for removing decay heat can be augmented by adopting diverse safety systems derived from other types of reactors. This study is expected to contribute to the safety enhancement of pressurized heavy water reactors by applying design changes based on the lessons learned from the Fukushima accident.

Drag Reducing Agent: A Multi-Use Tool for Liquid Pipeline Companies

1996 ◽  
Author(s):  
David H. Rew ◽  
Steven R. Sandman
Keyword(s):  
Electric Power ◽  
Reducing Agents ◽  
Reducing Agent ◽  
Lessons Learned ◽  
Capacity Increase ◽  
Pipe Line ◽  
Multiple Uses

The role of Drag Reducing Agents (DRA) at Lakehead Pipe Line (LPL) has expanded considerably in recent years. It is now a multi-purpose tool that helps manage electric power usage as well as having traditional capacity increase uses. Indeed, DRA is now an important part of operating the LPL system. This paper examines the multiple uses of DRA as used by LPL. It also describes the structure of the DRA program within the company and provides a summary of “lessons learned” since the DRA program started at LPL in 1991. This information should be useful for anyone who is considering implementing a DRA program.

Buried Piping: Managing the Challenge

2012 ◽  
Author(s):  
Peter Angell ◽  
Michelle Moir ◽  
Douglas Munson ◽  
Mike Berger ◽  
Robert Barton
Keyword(s):  
Electric Power ◽  
Service Providers ◽  
Lessons Learned ◽  
Electric Power Research Institute ◽  
Atomic Energy ◽  
Extensive Data ◽  
Canada Limited ◽  
Operational Impact ◽  
Selection Of ◽  
Research Institute

Nuclear utilities have many kilometres of piping buried in a relatively small physical area resulting in what has been called a “spaghetti bowl”. Until recently, much of this piping has been neglected and considered “out of sight / out of mind” therefore given a low operational impact. However, current failures have raised the profile of buried piping maintenance with both utilities and regulators. Buried piping programs face many of the challenges familiar to well run maintenance programs, but these challenges are compounded for a number of reasons. This paper will discuss how Atomic Energy of Canada Limited (AECL) Nuclear Laboratories have partnered with utilities, service providers, CANDU Owners Group (COG), and the Electric Power Research Institute (EPRI) to provide support to the development and implementation of maintenance programs for buried piping. Initially, AECL developed station strategy manuals to establish a mechanism to ensure a proficient ongoing program. As part of this program, extensive data on the systems was collected using station records. This data was then used to produce risk informed assessments, with the help of EPRI’s BPWORKS™ software, and ultimately the selection of inspection locations. Lessons learned from this work have not only been integrated into the station’s buried piping program, but also incorporated into improvements to the EPRI BPWORKS software.

scholarly journals Lessons Learned from the Post-injection Site Care Program at the American Electric Power Mountaineer Product Validation Facility

2014 ◽  
Vol 63 ◽  
pp. 6141-6155 ◽  
Author(s):  
Caitlin McNeil ◽  
Indrajit Bhattacharya ◽  
Tim Lohner ◽  
H. James Holley Ii ◽  
Melissa Kennedy ◽  
...  
Keyword(s):  
Injection Site ◽  
Electric Power ◽  
Care Program ◽  
Lessons Learned ◽  
Post Injection

Lessons Learned From Coaching Postsecondary Students With Traumatic Brain Injury

2020 ◽  
Vol 5 (1) ◽  
pp. 88-96
Author(s):  
Mary R. T. Kennedy
Keyword(s):  
College Students ◽  
Traumatic Brain Injury ◽  
Brain Injury ◽  
Sense Of Self ◽  
Scientific Evidence ◽  
Sudden Onset ◽  
Lessons Learned ◽  
Speech Language Pathologists ◽  
The Brain ◽  
Exhaustive List

Purpose The purpose of this clinical focus article is to provide speech-language pathologists with a brief update of the evidence that provides possible explanations for our experiences while coaching college students with traumatic brain injury (TBI). Method The narrative text provides readers with lessons we learned as speech-language pathologists functioning as cognitive coaches to college students with TBI. This is not meant to be an exhaustive list, but rather to consider the recent scientific evidence that will help our understanding of how best to coach these college students. Conclusion Four lessons are described. Lesson 1 focuses on the value of self-reported responses to surveys, questionnaires, and interviews. Lesson 2 addresses the use of immediate/proximal goals as leverage for students to update their sense of self and how their abilities and disabilities may alter their more distal goals. Lesson 3 reminds us that teamwork is necessary to address the complex issues facing these students, which include their developmental stage, the sudden onset of trauma to the brain, and having to navigate going to college with a TBI. Lesson 4 focuses on the need for college students with TBI to learn how to self-advocate with instructors, family, and peers.

Experiences With and Lessons Learned From Developing, Implementing, and Evaluating a Support Program for Older Hearing Aid Users and Their Communication Partners in the Hearing Aid Dispensing Setting

2020 ◽  
Vol 29 (3S) ◽  
pp. 638-647 ◽  
Author(s):  
Janine F. J. Meijerink ◽  
Marieke Pronk ◽  
Sophia E. Kramer
Keyword(s):  
Large Scale ◽  
Hearing Aid ◽  
Critical Discussion ◽  
Lessons Learned ◽  
Research Note ◽  
Support Program ◽  
Large Sample Size ◽  
Long Term Effects ◽  
Communication Program ◽  
Communication Partners

Purpose The SUpport PRogram (SUPR) study was carried out in the context of a private academic partnership and is the first study to evaluate the long-term effects of a communication program (SUPR) for older hearing aid users and their communication partners on a large scale in a hearing aid dispensing setting. The purpose of this research note is to reflect on the lessons that we learned during the different development, implementation, and evaluation phases of the SUPR project. Procedure This research note describes the procedures that were followed during the different phases of the SUPR project and provides a critical discussion to describe the strengths and weaknesses of the approach taken. Conclusion This research note might provide researchers and intervention developers with useful insights as to how aural rehabilitation interventions, such as the SUPR, can be developed by incorporating the needs of the different stakeholders, evaluated by using a robust research design (including a large sample size and a longer term follow-up assessment), and implemented widely by collaborating with a private partner (hearing aid dispensing practice chain).

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