Pioneering renewable energy for business and communities & more
Pioneering renewable energy for business and communities & more
Renewable technologies
An overview of the various renewable energy technologies to produce electricity, heat and fuels
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Renewable energy derives from the elements earth, air fire and water, as detailed here.
The most commonly used options are shown with a darker border below.
Elemental renewable technologies convert the energy from these elements directly to electricity or heat or both (CHP):
| Source | Heat | CHP | Power |
E
A | Geothermal | 
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R
T
H | Ground heat | 
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A
I | Air heat | 
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R | Wind |
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F I R E | Sun | 
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| Hydro (rivers) |
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W | Tidal range |
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A
T
E | Tidal stream |
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R | Water heat | 
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| Waves |
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Bioenergy technologies use the elements to grow biomass fuels, to be used for heat, combined heat & power or transport:
| Source | Fuel | Heat | CHP |
| Growing energy crops | 
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B
I | Bio-fuel production and use | 
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O
-
E | Biomass combustion | 
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N
E
R | Gas capture: landfill, sewage | 
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G
Y | Anaerobic digestion; microbial biogas | 
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| Pyrolysis & other gasification technologies | 
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