Hydropower Resources
- American Public Power Association (APPA)
- Bonneville Power Administration (BPA)
- BP's A+ For Energy Program
- California Energy Commission
- Energy Education Group
- EnergyTeachers.org
- Houston Museum of Natural Science
- National Council on Economic Education
- National Energy Education Development (The NEED) Project
- The National Hydropower Association (NHA)
- Nebraska Public Power District
- Ohio Energy Project (OEP)
- Railroad Commission of Texas
- Renewable-energysources.com
- Resource Action Programs
- Science Screen Report (SSR)
- Solar Now, Inc.
- U.S. Department of Energy - Energy Efficiency and Renewable Energy Information Center (EERE IC)
- U.S. Department of Energy - Office of Scientific and Technical Information (OSTI)