Did you know that the National Renewable Energy Laboratory (NREL) is located in Golden, Colorado. Recently, I had the oppurtunity to check out the visitor's center, and I learned that NREL specializes in solar, wind, geothermal, and biomass energy. They are also building a type of solar panel that can be used as a shingle. The vistitor's center also had many informational displays and models including various types of solar panels and biomass plants. For anyone wanting to learn more about renewable energy, I highly recommend visiting NREL.