| Biofuel |
Vegetable Oil
Biodiesel
Bioalcohols
BioGas
Algae Fuel
Syngas
Green Diesel
Biomass
|
|
| Solar Energy |
Photovoltaics
Solar Cells
Photosynthesis
Solar Collectors
Solar Cooking
Solar Greenhouse
Water Heating
Water Treatment
Space Solar Power
Solar Vehicles
Solar Thermal
Solar Chemical
|
|
| Water Power |
Wave Power
Blue Energy
Hydroelectricity
Tidal Power
Wave power
OTEC
Deep Lake Cooling
|
|
| Wind Power |
Windmills
Wind Turbines
Wind Farm
|
|
| Geothermal Energy |
Geothermal Electricity
Geothermal Heating
Geothermal Heat Pump
Geysers
|
|
| Waste-to-Energy |
Anaerobic Digestion
Gasification
Ethanol Fuel
Incineration
Pyrolysis Oil
Fermentation
Plasma Arc
Mechanical Biological
Refuse Derived Fuel
|
|
| Fuel Cells |
Hydrogen Vehicles
Hydrogen Economy
Solid Oxide FC
MCFCs
Microbial FC
PEM FC
Direct Methanol
|
|
