2786976
Descripción
Mapa Mental por tiafisher99, actualizado hace más de 1 año
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Creado por tiafisher99
hace más de 9 años
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Biofuels
- In Britain we could
generate a maximum of
7kWh per person per day.
- Land used for growing
biofuels can cause loss of
habitat and burning biofuels
emits CO2. However,
generating electricity from
biofuels emits 60% less CO2
than from fossil fuels.
- We can choose plant material
and animal waste that are in
constant supply. This means that
we can have constant electricity.
Therefore, biofuels are reliable.
- Growing high-energy plants to
use biofuels produce about
0.2Wagricul per square metre.
We can also use by-products of
other agricultural activities such
as animal manure or rubbish.
- Biofuels are burnt to heat water,
creating steam. This then turns
turbines, generating electricity.
- Burning biofuel to produce electricity
is about 40% efficient, whist burning
coal is about 30% efficient.
- Electricity generated by biofuels
costs about 17p per kWh.
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