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open access

Small Wind Electric Systems: An Idaho Consumer's Guide (Revised)

Description: Small Wind Electric Systems: An Idaho Consumer's Guide provides consumers with information to help them determine whether a small wind electric system can provide all or a portion of the energy they need for their home or business based on their wind resource, energy needs, and their economics. Topics discussed in the guide include how to make a home more energy efficient, how to choose the correct turbine size, the parts of a wind electric system, how to determine whether enough wind resource … more
Date: August 1, 2004
open access

Wind Energy Benefits

Description: Wind energy provides many benefits, including economic and environmental. This two-sided fact sheet succinctly outlines the top ten wind energy benefits and is especially well suited for general audiences.
Date: April 1, 2005
open access

Building America Research is Leading the Way to Zero Energy Homes

Description: During times of peak demand, a near zero energy home generates more power than it uses and reduces power demand on the utility provider. In a Florida study, a prototype near zero energy home outperforms a conventional model by providing most of its own power needs throughout the year.
Date: May 1, 2005
open access

What's New: Spring 2005 Update

Description: Articles focus on subjects of interest to Federal agency fleets covered under EPAct and Executive Order 13149.
Date: April 1, 2005
open access

Solar Success Story at Moanalua Terrace

Description: Solar systems prove to be the environmentally and economically sound choice for heating water in U.S. Navy housing at Moanalua Terrace in Pearl Harbor, Hawaii. Hawaii is a perfect environment for solar water heating,'' according to Alan Ikeda, a Housing Management Specialist with the Pacific Naval Facility Engineering Command Housing Department in Pearl Harbor, Hawaii. ''The sun shines most of the time, we don't have to worry about freezing, the state offers a 35% solar tax credit, and our loca… more
Date: March 1, 1999
open access

Unstructured Mesh Connectivity in Unstructured Mapping

Description: The connectivity interface for UnstructuredMapping has been rewritten to provide a more thorough interface to the mesh. This new design also resembles the TSTT mesh query interface. While data is still stored in array form, indexed by integers, the interface provides iterators through the mesh entities and adjacencies. This document describes the additions to the UnstructuredMapping class as well as the definition and use of the UnstructuredMappingIterator and UnstructuredMappingAdjacencyIterat… more
Date: October 22, 2002
Creator: Chand, K
open access

PV FAQs: What is the Energy Payback for PV?

Description: How long does a PV system have to operate to recover the energy--and the associated generation of pollution and CO{sub 2}--that went into making the system? Energy paybacks for rooftop systems range from 1 to 4 years, depending on the system. Based on models and real data, the idea that PV cannot pay back its energy investment is simply a myth.
Date: December 1, 2004
open access

Small Wind Electric Systems: A Wisconsin Consumer's Guide

Description: Small Wind Electric Systems: A Wisconsin Consumer's Guide provides consumers with information to help them determine whether a small wind electric system can provide all or a portion of the energy they need for their home or business based on their wind resource, energy needs, and their economics. Topics discussed in the guide include how to make a home more energy efficient, how to choose the correct turbine size, the parts of a wind electric system, how to determine whether enough wind resour… more
Date: May 1, 2004
open access

Heating Water with Solar Energy Costs Less at the Phoenix Federal Correctional Institution

Description: A large solar thermal system installed at the Phoenix Federal Correctional Institution (FCI) in 1998 heats water for the prison and costs less than buying electricity to heat that water. This renewable energy system provides 70% of the facility's annual hot water needs. The Federal Bureau of Prisons did not incur the up-front cost of this system because it was financed through an Energy Savings Performance Contract (ESPC). The ESPC payments are 10% less than the energy savings so that the priso… more
Date: September 1, 2004
open access

Rohm and Haas: Company Uses Knoxville Plant Assessment Results to Develop Best Practices Guidelines and Benchmark for Its Other Sites (Revised)

Description: Rohm and Haas conducted a plant-wide energy assessment at its Knoxville, Tennessee, chemicals manufacturing facility. The assessment identified potential annual energy savings of nearly 47,000 MMBtu in steam and fuel and 11,000 MWh in electricity. Annual cost savings were estimated at almost$1.5 million. After the assessment was replicated in California and Kentucky plants, the companys additional estimated cost savings were$500,000 annually. Additional annual energy savings were about 23,000 M… more
Date: July 1, 2003
open access

National Renewable Energy Laboratory 2004 Research Review

Description: In-depth articles on several NREL technologies and advances, including: aligning quantum dots and related nanoscience and nanotechnology research; using NREL's Advanced Automotive Manikin (ADAM) to help test and design ancillary automotive systems; and harvesting ocean wind to generate electricity with deep-water wind turbines. Also covered are NREL news, research updates, and awards and honors received by the Laboratory.
Date: March 1, 2005
open access

Habitat Metro Denver -- Perfecting Award-Winning Affordable Homes Using Building America's Integrated Design Approach

Description: Habitat for Humanity's goal is to supply quality housing to poor families while reducing their energy cost burden, especially in light of ever-increasing energy prices. Habitat Metro Denver partnered with the U.S. Department of Energy's Building America Project and the National Renewable Energy Laboratory to improve their construction and design process to create an affordable home that is not only cost-effective and volunteer friendly to build but highly energy efficient and a comfortable plac… more
Date: December 1, 2004
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