In this video we cover:
– The idea that devices aren’t 100% efficient
– What efficiency is
– The equation for efficiency
– Examples of how to calculate efficiency
– Why some devices like electric heaters are sometimes considered to be 100% efficient

General info:
– Suitable for all GCSE and IGCSE courses

Exam board specific info:
AQA – Everything is relevant to your course!
IGCSE Edexcel – Everything is relevant to your course!
Edexcel – Everything is relevant to your course!
OCR 21st Century – Everything is relevant to your course!
OCR Gateway – Everything is relevant to your course!
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Energy efficiency is measured as the ratio of energy output to energy input, as a percentage. The goal of improving energy efficiency is to deliver the same service to the end user, using less energy. Learn more about energy efficiency at www.studentenergy.org

Thank you to the Alberta Real Estate Foundation for sponsoring this episode of the Energy Systems Map.

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Student Energy is currently developing the Global Youth Energy Outlook, a global youth-led report that will engage 50,000 young people around the world in 2021 to gather their perspectives on energy. Want to take part? If you’re between 18-30, head to www.bit.ly/gyeo to complete the survey! You can win 0 cash prizes in each region, or a fully funded trip to the next International Student Energy Summit!

Student Energy is a global youth-led organization empowering the next generation of leaders who are accelerating the transition to a sustainable, equitable energy future. We work with a network of 50,000 young people from over 120 countries to build the knowledge, skills, and networks they need to take action on energy. Learn more at www.studentenergy.org

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Attributions:
Glass Vectors by Vecteezy: https://www.vecteezy.com/free-vector/glass
Fruit Vectors by Vecteezy: https://www.vecteezy.com/free-vector/vector
Radiator Vectors by Vecteezy: https://www.vecteezy.com/free-vector/radiator
Meat Vectors by Vecteezy: https://www.vecteezy.com/free-vector/meat
Milk Vectors by Vecteezy: https://www.vecteezy.com/free-vector/milk
Nature Vectors by Vecteezy: https://www.vecteezy.com/free-vector/nature
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