By Lori Weaver, About.com Guide
- Biomass 101
- Hydrogen 101
- Natural Gas & Propane 101
- Algae Biofuels 101
- Other Alternative Energy Sources 101
What is Alternative Fuel?
Find out what makes a fuel alternative, and where it's available to fuel up.
- Identifying Energy as an Alternative Source
- Emerging Fuels Contribute to Diverse Energy Portfolio
- Drop-in Fuels Are Road-Ready
- Is Alternative Fuel Hard to Find and Use?
- How Much Does an Alt Fuel Vehicle Cost?
- Locate Alt Fuel in Your Neighborhood
- Carbon Sciences Make Green Gasoline
Biodiesel & Diesel 101
Find answers to your questions about biodiesel, an alternative fuel made from vegetable oil, and the newest generation of diesel fuel, Ultra Low Sulfur Diesel (ULSD).
- Quiz Yourself on Biodiesel Facts
- What is Biodiesel?
- Five Facts to Know About Biodiesel
- Biodiesel Offers Clean Fuel Alternative for Diesel Engines
- Where Can I Buy Biodiesel?
- All About Making Your Own Biodiesel
- Ultra Low Sulfur Diesel (ULSD) Demystified
- Five Things to Know About Clean Diesel
Learn what makes a vehicle a hybrid and how gasoline and electricity work together in full, mild and plug-in hybrids.
- Hybrid Technology Terms
- Plugging into the New General of Hybrids
- What is a Hybrid Vehicle?
- How do Hybrids Work?
- Why is Electricity an Alt Fuel?
Learn more about ethanol, an alternative fuel made from grains and biomass that is used in flex-fuel vehicles.
- Five Things You Should Know About Ethanol
- Quiz Yourself on Ethanol Facts
- What is Ethanol & E85?
- Which Vehicles are Compatible with E85?
- Where Can I Buy E85?
Electricity is the cleanest alternative fuel when it's generated by renewable resources such as wind and solar. See how electricity can be harnessed to power vehicles.
Learn the basics of biomass--it's alternative fuel and much more.
Learn more about hydrogen, an alternative fuel that can power fuel cells in electric vehicles.
Natural Gas & Propane 101
Learn the basics about the use of natural gas and propane as alternative fuels.
- Five Facts to Know About Compressed Natural Gas
- Quiz Yourself on Natural Gas Facts
- Understanding Compressed Natural Gas
- Understanding CNG as a Vehicle Fuel
- What is Natural Gas?
- What is Propane?
- Five Things to Know About Propane
- Quick Facts About Propane Vehicles
- Where to Find Propane
- Where to Find Natural Gas
- Compressed Natural Gas Conversion Companies
- FIve Questions to Ask Before Converting to CNG
Algae Biofuels 101
Learn how new technologies are turning algae into biofuels.
- Check Out These Quick Questions on Algae Biofuels
- Biodiesel Production from Algae
- Five Quick Facts About Algae as a Fuel
- Costs Can Hinder Algae Development
- Learn Five Quick Facts About Algae as a Fuel
Other Alternative Energy Sources 101
In addition to biofuels and alternative transportation fuels, there are other alternative and renewable energy sources.