Popular NREL Publications
The following documents are the 50 most popular downloaded publications from NREL in the last year.
Consumer's Guide: Get Your Power from the Sun (Brochure)
Understanding solar electric and photovoltaic (PV) systems, investing in a PV system, selecting a provider, and connecting to the grid.
R.E.A.C.T.: Renewable Energy Activities — Choices for Tomorrow; Teacher's Activity Guide for Middle Level Grades 6-8
An activity booklet for sixth through eighth graders developed by the Education Office at NREL covering energy topics such as wind power, hydropower, biomass, and solar energy.
Elements of an Energy-Efficient House
A fact sheet that explains the elements of an energy-efficient house.
Borrower's Guide to Financing Solar Energy Systems: A Federal Overview, Second Edition (Booklet)
A brochure on photovoltaic power systems and solar thermal systems, as well as available federal financing options.
Junior Solar Sprint: An Introduction to Building a Model Solar Car (Revised)
An introduction for middle school students on how to build a model solar car.
Wind Energy Benefits
A fact sheet detailing 10 wind energy benefits, including environmental impact, rural benefits, and increasing independence from volatile fossil fuel markets.
Look Back at the U.S. Department of Energy's Aquatic Species Program: Biodiesel from Algae; Close-Out Report
A comprehensive look at the Aquatic Species Program and the production of biodiesel from high lipid-content algae grown in ponds, using waste CO2 from coal-fired power plants.
Lessons Learned from Existing Biomass Power Plants
Summary information on 20 biomass power plants, which represent some of the leaders in the industry. In each category an effort is made to identify plants that illustrate particular points. The project experiences described capture some important lessons learned that lead in the direction of an improved biomass power industry.
Axial Flux, Modular, Permanent-Magnet Generator with a Toroidal Winding for Wind Turbine Applications
A report covering the test case of a prototype generator presented at an industry conference.
International Performance Measurement and Verification Protocol: Concepts and Options for Determining Energy and Water Savings, Volume I (Revised)
This protocol serves as a framework to determine energy and water savings resulting from the implementation of an energy efficiency program. It is also intended to help monitor the performance of renewable energy systems and to enhance indoor environmental quality in buildings.