Realizing the Value of Bonneville Power Administration's Flexible
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Pacific DC Intertie (PDCI) Upgrade Outage / De-Rate Schedule 2014
Version No. Pacific DC Intertie (PDCI) Upgrade 10 POWER SYSTEM Effective Outage / De-rate Schedule 2014-2016 1/12/2016 Date: Introduction The upcoming scheduled outages due to major upgrades on the Pacific DC Intertie (PDCI) will result in reduced available capacity on the line during various periods from 2014 to 2016. Most of the upgrades are convertor station and line work by the Bonneville Power Administration (BPA) to modernize its infrastructure at the Celilo Converter Station, which is the northern terminal of the PDCI. Other work will be performed by the Los Angeles Department of Water and Power (LADWP) in conjunction with the upgrades. Scheduling MW Capacity The schedule below will be updated as outages are scheduled. Start Date End Date Direction Scheduling Capacity (MW) June 28, 2015 October 3, 2015 North – South 1956 HE21 HE3 South – North 975 October 3, 2015 January 20, 2016 North – South 0 HE4 HE24 South – North 0 January 21, 2015 North – South 29901 HE1 South – North 975 From October 3, 2015 to January 21, 2015, the Celilo‐Sylmar Pole 3 1000kV Line and Celilo‐Sylmar Pole 4 1000kV Line will be removed from service and the PDCI will not be available [0MW (N‐S) and 0MW (S‐ N)]. Version Version Revised By Date 1 Document Creation OASIS Group 09/22/2014 2 Corrected outage information OASIS Group 10/14/2014 3 Corrected outage information OASIS Group 10/15/2014 4 Updated outage information OASIS Group 10/16/2014 5 Updated outage information OASIS Group 11/03/2014 6 Updated outage information OASIS Group 12/23/2014 7 Updated outage information OASIS Group 01/09/2015 8 Updated outage information OASIS Group 08/26/2015 Updated PDCI capacity after 12/21/2015 from 3220MW to 9 OASIS Group 09/17/2015 2990MW. -
The History of High Voltage Direct Current Transmission*
47 The history of high voltage direct current transmission* O Peake† Power Systems Electrical Engineer, Collingwood, Victoria SUMMARY: Transmission of electricity by high voltage direct current (HVDC) has provided the electric power industry with a powerful tool to move large quantities of electricity over great distances and also to expand the capacity to transmit electricity by undersea cables. The fi rst commercial HVDC scheme connected the island of Gotland to the Swedish mainland in 1954. During the subsequent 55 years, great advances in HVDC technology and the economic opportunities for HVDC have been achieved. Because of the rapid development of HVDC technology many of the early schemes have already been upgraded, modernised or decommissioned. Very little equipment from the early schemes has survived to illustrate the engineering heritage of HVDC. Conservation of the equipment remaining from the early projects is now an urgent priority, while the conservation of more recent projects, when they are retired, is a future challenge. 1 INTRODUCTION technology for the valves to convert AC to DC and vice versa. At the beginning of the electricity supply industry there was a great battle between the proponents In the late 1920s, the mercury arc rectifi er emerged of alternating current (AC) and direct current as a potential converter technology, however, it was (DC) alternatives for electricity distribution. This not until 1954 that the mercury arc valve technology eventually played out as a win for AC, which has had matured enough for it to be used in a commercial maintained its dominance for almost all domestic, project. This pioneering development led to a industrial and commercial supplies of electricity number of successful projects. -
Advanced Transmission Technologies
Advanced Transmission Technologies December 2020 United States Department of Energy Washington, DC 20585 Executive Summary The high-voltage transmission electric grid is a complex, interconnected, and interdependent system that is responsible for providing safe, reliable, and cost-effective electricity to customers. In the United States, the transmission system is comprised of three distinct power grids, or “interconnections”: the Eastern Interconnection, the Western Interconnection, and a smaller grid containing most of Texas. The three systems have weak ties between them to act as power transfers, but they largely rely on independent systems to remain stable and reliable. Along with aged assets, primarily from the 1960s and 1970s, the electric power system is evolving, from consisting of predominantly reliable, dependable, and variable-output generation sources (e.g., coal, natural gas, and hydroelectric) to increasing percentages of climate- and weather- dependent intermittent power generation sources (e.g., wind and solar). All of these generation sources rely heavily on high-voltage transmission lines, substations, and the distribution grid to bring electric power to the customers. The original vertically-integrated system design was simple, following the path of generation to transmission to distribution to customer. The centralized control paradigm in which generation is dispatched to serve variable customer demands is being challenged with greater deployment of distributed energy resources (at both the transmission and distribution level), which may not follow the traditional path mentioned above. This means an electricity customer today could be a generation source tomorrow if wind or solar assets were on their privately-owned property. The fact that customers can now be power sources means that they do not have to wholly rely on their utility to serve their needs and they could sell power back to the utility. -
3.2 Flood Level of Risk* to Flooding Is a Common Occurrence in Northwest Oregon
PUBLIC COMMENT DRAFT 11/07/2016 3.2 Flood Level of Risk* to Flooding is a common occurrence in Northwest Oregon. All Flood Hazards jurisdictions in the Planning Area have rivers with high flood risk called Special Flood Hazard Areas (SFHA), except Wood High Village. Portions of the unincorporated area are particularly exposed to high flood risk from riverine flooding. •Unicorporated Multnomah County Developed areas in Gresham and Troutdale have moderate levels of risk to riverine flooding. Preliminary Flood Insurance Moderate Rate Maps (FIRMs) for the Sandy River developed by the Federal Emergency Management Agency (FEMA) in 2016 •Gresham •Troutdale show significant additional risk to residents in Troutdale. Channel migration along the Sandy River poses risk to Low-Moderate hundreds of homes in Troutdale and unincorporated areas. •Fairview Some undeveloped areas of unincorporated Multnomah •Wood Village County are subject to urban flooding, but the impacts are low. Developed areas in the cities have a more moderate risk to Low urban flooding. •None Levee systems protect low-lying areas along the Columbia River, including thousands of residents and billions of dollars *Level of risk is based on the local OEM in assessed property. Though the probability of levee failure is Hazard Analysis scores determined by low, the impacts would be high for the Planning Area. each jurisdiction in the Planning Area. See Appendix C for more information Dam failure, though rare, can causing flooding in downstream on the methodology and scoring. communities in the Planning Area. Depending on the size of the dam, flooding can be localized or extreme and far-reaching. -
Economics of Columbia River Initiative
Economics of Columbia River Initiative Final Report to the Washington Department of Ecology and CRI Economics Advisory Committee. Study Team: Daniel Huppert School of Marine Affairs University of Washington Gareth Green Albers School of Business Seattle University William Beyers Department of Geography University of Washington Andrew Subkoviak Department of Economics University of Washington Andrew Wenzl Department of Geography University of Washington January 12, 2004 Executive Summary i EXECUTIVE SUMMARY The purpose of this study is to review the economic effects of increased water use from the Columbia River in the context of Washington State’s Columbia River Initiative (CRI). The CRI is designed to address the legal, scientific, and political issues related to water use from the mainstem of the Columbia River in Washington State. The economic analysis in this report is one of several kinds of information that will be used to inform the Department of Ecology’s rule- making related to the Columbia River. In addition to this review, the State has contracted with the National Academy of Sciences to consider the relationship between water use and the health of salmon populations. This report focuses on the economic consequences of increased water diversions in the mainstem Columbia river in Washington State, including effects on agricultural production, municipal and industrial water supplies, hydropower generation, flood control, river navigation, commercial and recreational fishing, regional impacts, and passive use values. In addition to gauging these effects, the report includes a summary of issues related to the increased use of market transactions in water rights. The analysis is focused on a series of five “Management Scenarios” developed by the Department of Ecology in consultation with water users. -
Shipping in Pacific Northwest Halted Due to Cracked Barge Lock at Bonneville Dam
Shipping in Pacific Northwest Halted Due to Cracked Barge Lock at Bonneville Dam Reports of a broken barge lock at the Bonneville Dam on the Columbia River surfaced on September 9th. The crack was discovered last week and crews began working Monday morning on repairs. The cause of the damage is unknown. To begin the repairs, the crews must first demolish the cracked concrete section. It remains unclear, however, when the repairs will be complete. Navigation locks allow barges to pass through the concrete dams that were built across the Columbia and Snake Rivers to generate hydroelectricity for the West. A boat will enter the lock which is then sealed. The water is then lowered or raised inside the lock to match the level of the river on the other side of the dam. When the levels match, the lock is then opened and the boat exits. The concrete that needs to be repaired acts as the seal for the lock. The damage to the concrete at the Bonneville Dam resulted in significant leaking—enough that water levels were falling when the lock was in operation. Thus, immediate repair was necessary. The Columbia River is a major shipping highway and the shutdown means barges cannot transport millions of tons of wheat, wood, and other goods from the inland Pacific Northwest to other markets. Eight million tons of cargo travel inland on the Columbia and Snake rivers each year. Kristin Meira, the executive director of the Pacific Northwest Waterways Association said that 53% of U.S. wheat exports were transported on the Columbia River in 2017. -
To Save the Salmon Here’S a Bit of History and Highlights of the Corps' Work to Assure Salmon Survival and Restoration
US Army Corps of Engineers R Portland District To Save North Pacific Region: Northwestern Division The Salmon Pacific Salmon Coordination Office P.O. Box 2870 Portland, OR 97208-2870 Phone: (503) 808-3721 http://www.nwd.usace.army.mil/ps/ Portland District: Public Information P.O. Box 2946 Portland, OR 97208-2946 Phone: (503)808-5150 http://www.nwp.usace.army.mil Walla Walla District: Public Affairs Office 201 N. 3rd Ave Walla Walla, WA 99362-1876 Phone: (509) 527-7020 http://www.nww.usace.army.mil 11/97 Corps Efforts to Save the Salmon Here’s a bit of history and highlights of the Corps' work to assure salmon survival and restoration. 1805-1900s: Lewis and Clark see “multitudes” 1951: The Corps embarks on a new research of migrating fish in the Columbia River. By program focusing on designs for more effective 1850, settlements bring agriculture, commercial adult fishways. fishing to the area. 1955: A fisheries field unit was established at 1888: A Corps report warns Congress of “an Bonneville Dam. There, biologists and enormous reduction in the numbers of spawning technicians work to better understand and fish...” in the Columbia River. improve fish passage conditions on the river 1900s-1930s: Overfishing, pollution, non- system. federal dams, unscreened irrigation ditches and 1960s: Experimental diversion screens at Ice ruined spawning grounds destroy fish runs. Harbor Dam guide some juveniles away from the Early hatchery operations impact habitat or turbine units, and lead to a major effort to develop close the Clackamas, Salmon and Grande Ronde juvenile bypass systems using screens for other rivers to salmon migration. -
Import/Export Paths: Summary of Transmission Issues and Implications
DOCKETED Docket Number: 15-RETI-02 Project Title: Renewable Energy Transmission Initiative 2.0 TN #: 214834 Document Title: Appendix A. Transmission Assessment Focus Area Information Description: N/A Filer: Misa Milliron Organization: California Energy Commission Submitter Role: Commission Staff Submission Date: 12/16/2016 10:49:38 AM Docketed Date: 12/16/2016 Public Review Draft 12/16/2016 Appendix A. Transmission Assessment Focus Area Information Renewable Energy Transmission Initiative 2.0 PUBLIC REVIEW DRAFT December 16, 2016 Public Review Draft 12/16/2016 Contents of Appendix A Introduction .......................................................................................................................... 1 In-State TAFAs: Transmission and Environmental/Land-Use Implications ............................... 3 In-State TAFA Data Maps........................................................................................................................ 3 Imperial Valley TAFA ............................................................................................................................... 9 Riverside East TAFA .............................................................................................................................. 16 Victorville/Barstow TAFA ...................................................................................................................... 20 Tehachapi TAFA ................................................................................................................................... -
2002 ABB ELECTRIC UTILITY CONFERENCE HVDC Technologies
2002 ABB ELECTRIC UTILITY CONFERENCE PAPER IV – 3 POWER SYSTEMS HVDC Technologies – The Right Fit for the Application Michael P. Bahrman ABB Inc. 1021 Main Campus Dr. Raleigh, NC 27606 Abstract: Traditional HVDC transmission has often provided economic solutions for special transmission applications. These include long-distance, bulk-power transmission, long submarine cable crossings and asynchronous interconnections. Deregulated generation markets, open access to transmission, formation of RTO’s, regional differences in generation costs and increased difficulty in siting new transmission lines, however, have led to a renewed interest in HVDC transmission often in non-traditional applications. HVDC transmission technologies available today offer the planner increased flexibility in meeting transmission challenges. This paper describes the latest developments in conventional HVDC technology as well as in alternative HVDC transmission technologies offering supplemental system benefits. Keywords: HVDC, DC, CCC, VSC, PWM, RTO, Asynchronous, HVDC Light I. INTRODUCTION Economic signals arising from deregulation of the generation market have led developers and transmission providers alike to follow the path of least resistance much like the power flow over the network on which their mutual business interests rely. On the generation side, the developer has invoked a quick-strike strategy siting units where there is convergence of low-cost fuel supplies, relative ease of permitting, water supply, ready access to transmission and proximity to load. On the transmission side, the transmission provider has been preoccupied with cost reduction, compensation for stranded assets, potential under-utilization of assets and reacting to evolving regulatory mandates. Although such development may result in a short-term gain in new, economic power resources, the long term benefit is not all that clear. -
Lake Roosevelt National Recreation Area Foundation Document Overview
NATIONAL PARK SERVICE • U.S. DEPARTMENT OF THE INTERIOR Foundation Document Overview Lake Roosevelt National Recreation Area Washington Contact Information For more information about the Lake Roosevelt National Recreation Area Foundation Document, contact: [email protected] or (509) 754-7893 or write to: Superintendent, Lake Roosevelt National Recreation Area, 1008 Crest Drive, Coulee Dam, WA 99116 Purpose Significance Significance statements express why Lake Roosevelt National Recreation Area resources and values are important enough to merit national park unit designation. Statements of significance describe why an area is important within a global, national, regional, and systemwide context. These statements are linked to the purpose of the park unit, and are supported by data, research, and consensus. Significance statements describe the distinctive nature of the park and inform management decisions, focusing efforts on preserving and protecting the most important resources and values of the park unit. • Lake Roosevelt National Recreation Area, which includes some of the most publicly accessible shoreline in the Pacific Northwest, offers a wide range of visitor experiences and appropriate recreational opportunities. • Lake Roosevelt National Recreation Area is located within two distinct geologic provinces—the Okanogan Highlands and the Columbia Plateau—and is an outstanding and easily accessible landscape sculpted by a rare combination of sequential geologic processes: volcanism, collision of tectonic plates, continental glaciation, and cataclysmic ice age floods. • Lake Roosevelt National Recreation Area is located at a historic convergence point for numerous Pacific Northwest tribes and contains a central gathering place in their traditional homeland, including the site of the second-largest The purpose of LAKE ROOSEVELT NATIONAL prehistoric and historic Native American fishery on the RECREATION AREA is to protect, conserve, Columbia River. -
Columbia Basin Project Coordinated Water Conservation Plan ‐ Final Draft
COLUMBIA BASIN PROJECT COORDINATED WATER CONSERVATION PLAN ‐ FINAL DRAFT Prepared for East Columbia Basin Irrigation District Quincy-Columbia Basin Irrigation District South Columbia Basin Irrigation District Washington State Department of Ecology Prepared by Anchor QEA, LLC 811 Kirkland Avenue, Suite 200 Kirkland, WA 98033 March 2010 Ecology Publication Number: 10-12-010 COLUMBIA BASIN PROJECT COORDINATED WATER CONSERVATION PLAN – FINAL DRAFT Prepared for East Columbia Basin Irrigation District Quincy-Columbia Basin Irrigation District South Columbia Basin Irrigation District Washington State Department of Ecology Prepared by Anchor QEA, LLC 811 Kirkland Avenue, Suite 200 Kirkland, WA 98033 March 2010 TABLE OF CONTENTS 1 INTRODUCTION ..................................................................................................................1 1.1 Project Goals.....................................................................................................................1 1.2 Columbia Basin Project....................................................................................................1 1.3 Past Water Conservation Studies and Actions ...............................................................2 2 METHODOLOGY..................................................................................................................4 2.1 Identifying Water Conservation Projects.......................................................................4 2.2 Estimating Water Savings................................................................................................4 -
Lesson 1 the Columbia River, a River of Power
Lesson 1 The Columbia River, a River of Power Overview RIVER OF POWER BIG IDEA: The Columbia River System was initially changed and engineered for human benefit Disciplinary Core Ideas in the 20th Century, but now balance is being sought between human needs and restoration of habitat. Science 4-ESS3-1 – Obtain and combine Lesson 1 introduces students to the River of Power information to describe that energy curriculum unit and the main ideas that they will investigate and fuels are derived from natural resources and their uses affect the during the eleven lessons that make up the unit. This lesson environment. (Clarification Statement: focuses students on the topics of the Columbia River, dams, Examples of renewable energy and stakeholders. Through an initial brain storming session resources could include wind energy, students record and share their current understanding of the water behind dams, and sunlight; main ideas of the unit. This serves as a pre-unit assessment nonrenewable energy resources are fossil fuels and fissile materials. of their understanding and an opportunity to identify student Examples of environmental effects misconceptions. Students are also introduced to the main could include loss of habitat to dams, ideas of the unit by viewing the DVD selection Rivers to loss of habitat from surface mining, Power. Their understanding of the Columbia River and the and air pollution from burning of fossil fuels.) stakeholders who depend on the river is deepened through the initial reading selection in the student book Voyage to the Social Studies Pacific. Economics 2.4.1 Understands how geography, natural resources, Students set up their science notebook, which they will climate, and available labor use to record ideas and observations throughout the unit.