Here’s the need-to-know stuff about the energy source, biomass!
Description
All living things and organic matter are known as biomass. The energy released from biomass when it is eaten, burned, or converted into fuels is called biomass energy. This includes wood, wood waste, straw, manure, sugarcane, and many other by-products.
Where can you find biomass?
Biomass fuel can be found all around us – even your poop!
How is it made into electricity?
Biomass can be burned to heat water and produce steam. This steam propels the blades of a turbine. This is attached to a generator, which produces electricity.
What are the advantages of using biomass?
- It is a renewable source of energy, which means that it will not run out as long as it is replaced, for example by growing more crops or trees.
- Although carbon dioxide and methane gases are released when biomass is burned, the plants absorbed carbon dioxide when they were growing. So the only additional carbon dioxide that is emitted is from farm machinery used in the process.
- It can use waste materials to produce electricity.
- It supports farmers because they can sell their crops for biomass fuel.
What are the disadvantages of using biomass?
- Burning biomass does produce some carbon dioxide and methane gas overall, which contributes towards global warming, but in general, it can be thought of as almost carbon-neutral.
- Biomass production can encourage intensive farming and may contribute towards deforestation if new trees are not planted.
- Growing and collecting the biomass can sometimes cause problems. It can be heavy and may need to be transported long distances.
- If food crops are used for fuel this can make them more expensive to buy as food.
📖 Words to know
- Biomass
- Plant and animal material that can be used as a fuel.
- Renewable
- An energy source that can be used again and will not run out.
- Carbon emissions
- The carbon released into the air when something is burned.
- Fossil fuel
- A natural substance formed over millions of years from the buried remains of ancient living things. Coal, oil and gas are all fossil fuels.
⚠️ Watch out!
🎧 Listen and watch
- Turning Heat Into Power — from burning something to electricity in your plug.
- The Energy Guzzlers — where all our energy actually goes.
How much do you know about biomass?
What is biomass?
- Plant and animal material used as fuel
- A type of rock
- A gas from volcanoes
- Melted metal
Why does biomass count as renewable when coal does not?
- New plants can be grown to replace it
- It does not burn
- It comes from the sea
- It never makes smoke
Does burning biomass release carbon dioxide?
- Yes, it does
- No, never
- Only if it is wet
- Only in power stations
We’ve got a whole series about energy, electricity, and power generation! It’s called Curious Kate, and you can listen to it below!
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