Grand Challenge 3: Clean Growth
Heating and powering buildings accounts for 40% of our total energy usage in the UK. This resource collection explores how smart technologies can cut household energy bills, reduce demand for energy and reduce our carbon footprint.
This video uses a comparison between an LED light and filament bulb to introduce efficiency (η). The equation, %efficiency (η) = (useful energy out/total energy in) x100 is explained and then linked to rate of energy transfer (P=E/t).
|Subject(s)||Design and technology, Science|
|Published||2010 to date|
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This resource is part of Grand Challenges – Our Futures Resources
- Grand Challenges – Our Futures Resources
- Grand Challenge 3: Clean Growth