1. Electrical energy in designs

2. Electrical energy is used in many designed solutions.1. 2. 4. 3. 5.

3. Electricity flows through a circuit to make it function the way the designer wants it to.6.

4. There are many sources of electrical energy that can be used in designs.
mains power
batteries 2. 1.
solar cells
generators 3. 4.

5. These can have limitations and benefits for designers.
Why are batteries useful for a torch but a lamp is plugged in and uses mains power?

6. Some sources are more sustainable than others.
wind energy
solar panels
coal power station 2. 1. 3.

7. How can sustainable sources of electricity be used in designs?

8. Attributions Slide Image Attribution 2 1 3 4 5
Barry 2006, DILODEC06_S CC BY-NC-SA-2.0 creativecommons.org/licenses/by-nc-sa/2.0/
darwin Bell 2006, of light and wires CC BY 2.0 creativecommons.org/licenses/by/2.0/
Anthony Agius 2009, New Toaster CC BY-NC-ND 2.0 creativecommons.org/licenses/by-nc-nd/2.0/
Kai Hendry 2007, Cordless Internet and phone CC BY 2.0 creativecommons.org/licenses/by/2.0/
Acmefixer 2012, Conventional Joule Thief with red LED
CC BY-SA 3.0 creativecommons.org/licenses/by-sa/3.0/deed.en
Stephen Edmonds 2005, Power outlet placement
CC BY-SA 2.0 creativecommons.org/licenses/by-sa/2.0/
romana klee 2009, garland for the generator CC BY-SA 2.0 creativecommons.org/licenses/by-sa/2.0/
yellowcloud 2012, Light to light, CC BY 2.0 creativecommons.org/licenses/by/2.0/ 6
Kevin Dooley, 2007, Driving into the future, CC BY 2.0 creativecommons.org/licenses/by/2.0/
Port of San Diego 2009, Port of San Diego’s Green Port Program
CC BY 2.0 creativecommons.org/licenses/by/2.0/
Takver 2015, Loy Yang coal power station CC BY-SA 2.0 creativecommons.org/licenses/by-sa/2.0/ 7