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in subjects: "Peak Load"

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Thermal energy storage for power generation

Studies strongly indicate that the United States will face widespread electrical power constraints in the 1990s, with most regions of the country experiencing capacity shortages by the year 2000. In many cases, the demand for increased power will occur during intermediate and peak demand periods. Much of this demand is expected to be met by oil- and natural gas-fired Brayton cycle turbines and combined-cycle plants. While natural gas is currently plentiful and reasonably priced, the availabilit… more

Date: October 1, 1989

Creator: Drost, M. K.; Antoniak, Z. I.; Brown, D. R. & Sathyanarayana, K.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Automatic lighting controls demonstration

The purpose of this work was to demonstrate, in a real building situation, the energy and peak demand reduction capabilities of an electronically ballasted lighting control system that can utilize all types of control strategies to efficiently manage lighting. The project has demonstrated that a state-of-the-art electronically ballasted dimmable lighting system can reduce energy and lighting demand by as least 50% using various combinations of control strategies. By reducing light levels over c… more

Date: March 1, 1990

Creator: Rubinstein, F. & Verderber, R.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Peak load management: Potential options

This report reviews options that may be alternatives to transmission construction (ATT) applicable both generally and at specific locations in the service area of the Bonneville Power Administration (BPA). Some of these options have potential as specific alternatives to the Shelton-Fairmount 230-kV Reinforcement Project, which is the focus of this study. A listing of 31 peak load management (PLM) options is included. Estimated costs and normalized hourly load shapes, corresponding to the respec… more

Date: October 1, 1989

Creator: Englin, J. E.; De Steese, J. G.; Schultz, R. W. & Kellogg, M. A.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Analysis of residential, industrial and commercial sector responses to potential electricity supply constraints in the 1990s

There is considerable debate over the ability of electric generation capacity to meet the growing needs of the US economy in the 1990s. This study provides new perspective on that debate and examines the possibility of power outages resulting from electricity supply constraints. Previous studies have focused on electricity supply growth, demand growth, and on the linkages between electricity and economic growth. This study assumes the occurrence of electricity supply shortfalls in the 1990s and… more

Date: September 1, 1986

Creator: Fisher, Z. J.; Fang, J. M.; Lyke, A. J. & Krudener, J. R.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Hot Water Electric Energy Use in Single-Family Residences in the Pacific Northwest : Regional End-Use Metering Project (REMP).

The Office of Energy Resources of the Bonneville Power Administration carriers out generation and conservation resource planning. The analysis of historical trends in and determinants of energy consumption is carried out by the office's End-Use Research Section. The End-Use Research Section operates a comprehensive data collection program to provide pertinent information to support demand-side conservation planning, load forecasting, and conservation program development and delivery. Part of th… more

Date: September 1, 1991

Creator: Taylor, Megan E.; Ritland, Keith G. & Pratt, R. G.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Workshop proceeding of the industrial building energy use

California has a large number of small and medium sized industries which have a major impact on the demand growth of California utilities. Energy use in building services (lighting, HVAC, office equipment, computers, etc.). These industries constitute an important but largely neglected fraction of the total site energy use. The ratio of energy use in building service to the total site energy use is a function of the industrial activity, its size, and the climate at the site of the facility. Als… more

Date: January 1, 1988

Creator: Akbari, H. & Gadgil, A.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Optimization of distribution transformer efficiency characteristics. Final report, March 1979

A method for distribution transformer loss evaluation was derived. The total levalized annual cost method was used and was extended to account properly for conditions of energy cost inflation, peak load growth, and transformer changeout during the evaluation period. The loss costs included were the no-load and load power losses, no-load and load reactive losses, and the energy cost of regulation. The demand and energy components of loss costs were treated separately to account correctly for the… more

Date: June 1, 1980

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Electric power supply and demand 1979 to 1988 for the contiguous United States as projected by the Regional Electric Reliability Councils in their April 1, 1979 long-range coordinated planning reports to the Department of Energy

Information concerning bulk electric power supply and demand is summarized and reviewed. Electric-utility power-supply systems are composed of power sources, transmission and distribution facilities, and users of electricity. In the United States there are three such systems of large geographic extent that together cover the entire country. Subjects covered are: energy forecasts, peak demand forecasts, generating-capacity forecasts, purchases and sales of capacity, and transmission. Extensive d… more

Date: December 1, 1979

Creator: Savage, N. & Graban, W.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Monitoring and evaluation of replacing low-efficiency air conditioners with high-efficiency air conditioners in single-family detached houses in Austin, Texas

The US DOE initiated this project to evaluate the performance of an air conditioner retrofit program in Austin, Texas. The City's Austin's Resource Management Department pursued this project to quantify the retrofit effect of replacing low-efficiency air conditioners with high-efficiency air conditioners in single-family detached homes. If successfully implemented, this retrofit program could help defer construction of a new power plant which is a major goal of this department. The project comp… more

Date: October 1, 1991

Creator: Burns, R. & Hough, R.E. (Fleming (W.S.) and Associates, Inc., Syracuse, NY (United States))

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Conservation potential of compact fluorescent lamps in India and Brazil

We evaluate the conservation potential of compact fluorescent lamps (CFLs) for managing the rapidly increasing electrical energy and peak demand in India and Brazil. Using very conservative assumptions, we find that the cost of conserved energy using 16 W CFLs is 4 and 6 times less than the long range marginal cost of electricity for the two countries. The cost of avoided peak installed capacity is 6 and 9.5 times less than the cost of new installed capacity for India and Brazil. The analysis i… more

Date: July 1, 1989

Creator: Gadgil, A.; Martino Jannuzzi, G. de (Lawrence Berkeley Lab., CA (USA) & Universidade Estadual de Campinas, SP (Brazil). Faculdade de Engenharia)

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Integrated estimation of commercial sector end-use load shapes and energy use intensities, Phase 2

This report is comprised of the appendices for report number LBL-- 30401 Part 1 of 2 by the same name. One appendix includes a memorandum with detailed data of end use EUIs and load shapes for small and large office buildings and small and large retail buildings. It includes replacement tables for LBL--27512. Other appendices are the DOE-Z BDL prototype input files, summarizes of LRD, figures and results of load-temperature regressions, and THI matrices for cooling. (BM)

Date: January 1, 1991

Creator: Akbari, H.; Rainer, L. & Eto, J.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Lawrence Berkeley Laboratory/University of California Lighting Program Overview

The objective of the Lighting Program is to assist and work in concert with the lighting community (composed of manufacturers, designers, and users) to achieve a more efficient lighting economy. To implement its objectives, the Lighting Program has been divided into three major categories: technical engineering, buildings applications, and human impacts (impacts on health and vision). The technical program aims to undertake research and development projects that are both long-range and high-ris… more

Date: December 1, 1981

Creator: Berman, Samuel

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Alternative fuels study: point-of-use component

The purpose of the concept paper is to outline a possible approach to conducting the point-of-use component of the Virginia Electric and Power Company (VEPCO) study of alternative fuels. Alternative measures for point-of-use application (specifically for the residential sector) would include conservation, solar space conditioning and water heating, and heat pumps. An outline is presented of analytical and field work that will provide information on parameters affecting users, the utility, and t… more

Date: December 28, 1981

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Effects of Temporal Wind Patterns on the Value of Wind-Generated Electricity in California and the Northwest

Wind power production is variable, but also has diurnal and seasonal patterns. These patterns differ between sites, potentially making electric power from some wind sites more valuable for meeting customer loads or selling in wholesale power markets. This paper investigates whether the timing of wind significantly affects the value of electricity from sites in California and the Northwestern United States. We use both measured and modeled wind data and estimate the time-varying value of wind po… more

Date: May 1, 2008

Creator: Wiser, Ryan H; Wiser, Ryan H & Fripp, Matthias

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

GeV electron beams from cm-scale channel guided laser wakefieldaccelerator

Laser-wakefield accelerators (LWFA) can produce electricfields of order 10-100 GV/m suitable for acceleration of electrons torelativistic energies. The wakefields are excited by a relativisticallyintense laser pulse propagating through a plasma and have a phasevelocity determined by the group velocity of the light pulse. Twoimportant effects that can limit the acceleration distanceand hence thenet energy gain obtained by an electron are diffraction of the drivelaser pulse and particle-wake deph… more

Date: February 20, 2007

Creator: Nakamura, K.; Nagler, B.; Toth, Cs.; Geddes, C. G. R.; Schroeder, C.; Esarey, E. et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Evaluation of 2004 Toyota Prius Hybrid Electic Drive System Interim Report - Revised

The 2004 Toyota Prius is a hybrid automobile equipped with a gasoline engine and a battery-powered electric motor. Both of these motive power sources are capable of providing mechanical drive power for the vehicle. The engine can deliver a peak power output of 57 kilowatts (kW) at 5000 revolutions per minute (rpm) while the motor can deliver a peak power output of 50 kW at 1300 rpm. Together, this engine-motor combination has a specified peak power output of 82 kW at a vehicle speed of 85 kilom… more

Date: July 31, 2007

Creator: Ayers, C. W.; Hsu, J. S.; Marlino, L. D.; Miller, C. W.; Ott, G. W., Jr.; Oland, C. B. et al.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

TX-100 manufacturing final project report.

This report details the work completed under the TX-100 blade manufacturing portion of the Carbon-Hybrid Blade Developments: Standard and Twist-Coupled Prototype project. The TX-100 blade is a 9 meter prototype blade designed with bend-twist coupling to augment the mitigation of peak loads during normal turbine operation. This structural coupling was achieved by locating off axis carbon fiber in the outboard portion of the blade skins. The report will present the tooling selection, blade produc… more

Date: November 1, 2007

Creator: Ashwill, Thomas D. & Berry, Derek S.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

ILC Reference Design Report: Accelerator Executive Summary

The International Linear Collider (ILC) is a 200-500 GeV center-of-mass high-luminosity linear electron-positron collider, based on 1.3 GHz superconducting radiofrequency (SCRF) accelerating cavities. The use of the SCRF technology was recommended by the International Technology Recommendation Panel (ITRP) in August 2004 [1], and shortly thereafter endorsed by the International Committee for Future Accelerators (ICFA). In an unprecedented milestone in high-energy physics, the many institutes ar… more

Date: December 14, 2007

Creator: Phinney, Nan

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Estimating Demand Response Load Impacts: Evaluation of BaselineLoad Models for Non-Residential Buildings in California

Both Federal and California state policymakers areincreasingly interested in developing more standardized and consistentapproaches to estimate and verify the load impacts of demand responseprograms and dynamic pricing tariffs. This study describes a statisticalanalysis of the performance of different models used to calculate thebaseline electric load for commercial buildings participating in ademand-response (DR) program, with emphasis onthe importance of weathereffects. During a DR event, a va… more

Date: January 1, 2008

Creator: Coughlin, Katie; Piette, Mary Ann; Goldman, Charles & Kiliccote,Sila

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Plug-In Hybrid Electric Vehicle Value Proposition Study: Interim Report: Phase I Scenario Evaluation

Plug-in hybrid electric vehicles (PHEVs) offer significant improvements in fuel economy, convenient low-cost recharging capabilities, potential environmental benefits, and decreased reliance on imported petroleum. However, the cost associated with new components (e.g., advanced batteries) to be introduced in these vehicles will likely result in a price premium to the consumer. This study aims to overcome this market barrier by identifying and evaluating value propositions that will increase the… more

Date: January 1, 2009

Creator: Sikes, Karen R; Markel, Lawrence C; Hadley, Stanton W; Hinds, Shaun & DeVault, Robert C

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Using measured equipment load profiles to 'right-size' HVACsystems and reduce energy use in laboratory buildings (Pt. 2)

There is a general paucity of measured equipment load datafor laboratories and other complex buildings and designers often useestimates based on nameplate rated data or design assumptions from priorprojects. Consequently, peak equipment loads are frequentlyoverestimated, and load variation across laboratory spaces within abuilding is typically underestimated. This results in two design flaws.Firstly, the overestimation of peak equipment loads results in over-sizedHVAC systems, increasing initia… more

Date: June 29, 2005

Creator: Mathew, Paul; Greenberg, Steve; Frenze, David; Morehead, Michael; Sartor, Dale & Starr, William

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Potential Impacts of Plug-in Hybrid Electric Vehicles on Regional Power Generation

Plug-in hybrid electric vehicles (PHEVs) are being developed around the world, with much work aiming to optimize engine and battery for efficient operation, both during discharge and when grid electricity is available for recharging. However, the general expectation has been that the grid will not be greatly affected by the use of PHEVs because the recharging will occur during off-peak hours, or the number of vehicles will grow slowly enough so that capacity planning will respond adequately. Th… more

Date: January 1, 2008

Creator: Hadley, Stanton W & Tsvetkova, Alexandra A

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Planar LTCC transformers for high voltage flyback converters: Part II.

This paper is a continuation of the work presented in SAND2007-2591 'Planar LTCC Transformers for High Voltage Flyback Converters'. The designs in that SAND report were all based on a ferrite tape/dielectric paste system originally developed by NASCENTechnoloy, Inc, who collaborated in the design and manufacturing of the planar LTCC flyback converters. The output/volume requirements were targeted to DoD application for hard target/mini fuzing at around 1500 V for reasonable primary peak current… more

Date: February 1, 2009

Creator: Schofield, Daryl (NASCENTechnology, Inc., Watertown, SD); Schare, Joshua M., Ph.D.; Slama, George (NASCENTechnology, Inc., Watertown, SD) & Abel, David (NASCENTechnology, Inc., Watertown, SD)

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Cummins Power Generation SECA Phase 1

The following report documents the progress of the Cummins Power Generation (CPG) SECA Phase 1 SOFC development and final testing under the U.S. Department of Energy Solid State Energy Conversion Alliance (SECA) contract DE-FC26-01NT41244. This report overviews and summarizes CPG and partner research development leading to successful demonstration of the SECA Phase 1 objectives and significant progress towards SOFC commercialization. Significant Phase 1 Milestones: (1) Demonstrated: (a) Operati… more

Date: August 17, 2007

Creator: Vesely, Charles

Item Type: Report

Partner: UNT Libraries Government Documents Department