what did you do this morning which used electricity? 2
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What did you do this morning which used Electricity?
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Which uses more electricity?
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Which uses more electricity?
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Which uses more electricity?
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Which uses more energy in a year in an average household?
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How is electricity made?
Wind Sun
WaterNuclear
Coal
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How does electricity get from where it is made to us?
This system is called the National Grid
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Let’s make our own National Grid
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Your task:
Imagine each of you is an electricity pylon, and the string is the wires, connect as many
people as possible to the power source.
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Technology Justice
Is this fair? We don’t think so. We believe everyone should be able to have electricity and other things that mean they will have a decent quality of life. We call that
Technology Justice
1.4 billion people don’t have any electricity that’s one third of the world
33%
1/3
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What else is being done to help people in places like Kenya?
In year 2000 world leaders got together
and said they wanted to help people in
developing countries like Kenya get out
of poverty and lead a decent life.
They set themselves 8 different goals to
make this happen by 2015. They called
these the
Millennium Development Goals
General Ban Ki MoonUnited Nation’s General Secretary
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Why is electricity so important for Technology justice?
…let’s find out why one charity called Practical Action thinks electricity is important and what they are doing to help make technology justice a reality.
http://www.youtube.com/watch?v=usISdE-WSWU
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Using the power of the wind is one way we can make electricity
• Wind turbines can provide energy for communities not connected to the national grid…reaching the very poor.
• Wind is a renewable energy, it is sustainable… it doesn’t harm other people or the environment.
Wind turbines turn the wind into electricity
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How does a wind turbine work?
• Wind turns the blades round.
• They are connected to the generator, so bits inside the generator turn.
• The generator makes electricity.
• The electricity can then go through a wire to your house
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Different kinds of wind turbines
There are many different kinds of turbines, each with different features
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Your task…A set of wind turbine blades has broken in your community, you need to design and build replacement blades
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Your materials…
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A wind turbine in rural Africa
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Enjoyed the workshop? What’s next?
See how you could become an engineer working renewable energy www.practicalaction.org/careers
Spread the word Tell other people at school and at home what you have learnt
Take part in one of Practical Action’s STEM challengeswww.practicalaction/STEM
Find out more about renewable energy by going to Ewb-UK.org and Practicalaction.org
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…any questions?
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