Solar Power - Next Steps Cornwall

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Transcript Solar Power - Next Steps Cornwall

Solar Power: What, How and Why?
Nina Garratley
Widening Participation and Student Experience Coordinator
College of Engineering, Mathematics and Physical Sciences
© Nina Garratley, Widening Participation and Student Experience Coordinator CEMPS,
University of Exeter 04.05.2016. This work is designed to be used at a key stage 4 or equivalent
level and is adapted appropriately to show an example of Higher Education Learning; using
appropriate research from the academic departments of the University of Exeter and is to be
used as a teaching and learning resource and not a published academic article. This work is
licensed under the Creative Commons Attribution 3.0 Unported License. To view a copy of this
license, visit http://creativecommons.org/licenses/by/3.0/ or send a letter to Creative Commons,
PO Box 1866, Mountain View, CA 94042, USA.
University Style Learning
This session is designed to be similar to a
Lecture: everyone on the course gathers together to
university seminar in Wind Energy. There are
learn about a topic usually an overarching one e.g. if
different types of learning methods used in
you had a lecture before this session it would most
university.
likely be about Renewable Energy as a whole.
Seminar: smaller group that looks more closely at
the topic in detail. This topic would be Wind
Energy so you would explore ideas around wind
energy and then you would be set a task either
individually or within a group. University students
would most likely go off to engineering labs and
construction zones to work on their task.
Fieldwork: is when you go off campus to explore the
topic even further and see how the research works in
Students attending fieldwork site – hands on problem
based learning.
a real world scenario.
What is
Renewable
Energy?
‘Intelligent’ robotic boat
piloted by Exeter researchers
makes maiden voyage
It is energy produced
from a source that is not
depleted when used
C-Enduro, produced by ASV global, is the size of a small car,
uses energy harvesting technology and has the capacity to travel
and can be replenished.
at sea for up to three months over a range of 4,000 miles. It has a
self-righting hull and has been built to operate in all marine
environments.
http://emps.exeter.ac.uk/news-events/news/title_502463_en.html
What is Renewable Energy?
It is energy from a source that can be
replenished within a human timescale, such
as wind or solar power.
Wind Power
Solar Power
Hydroelectric Power
Intel Free Press via Flickr https://flic.kr/p/bVvjP5
Scott Oves via Flickr https://flic.kr/p/9AzDU9
Kai Lehmann via Flickr https://flic.kr/p/neERoT
What is Solar Power?
•
Sunlight is a renewable energy
source.
•
•
Solar panels or cells turn energy from
the sun’s rays directly into useful
energy that can be used in homes
and businesses.
There are two main types: solar
thermal and photovoltaic (or PV.)
Image accessed via Flickr (ricketyus, 4/8/16)
What is a PV Solar Cell?
• Photovoltaic cells get their name
from the process of converting light
(photons) into electricity (voltage).
• The ‘PV effect’ was discovered in
1954.
Marshalltown Public Library Via Flickr
https://flic.kr/p/9iYu4L
• Silicon, a main component,
creates an electrical charge when
exposed to sunlight.
How does a Solar Cell work?
This video demonstrates how solar cells convert photons
into electricity.
https://www.youtube.com/watch?v=xKxrkht7CpY
How does a Solar Cell work?
Photons from
Sunlight
N-type Silicon
Junction
P-type Silicon
Why do we use Solar Power?
• Solar Power is a clean energy source and solar
panels produce electricity for free!
• The UK could meet all of its power needs by
covering just 1% of its land area to solar
panels.
• The power we can get from this is infinite!
What are the disadvantages
to using Solar Panels?
• Solar Panels are quite inefficient.
• The initial set up of Solar Panels is expensive.
• Solar energy can only be harnessed when it is
sunny.
• It requires large areas of land to build ‘Solar
Farms’.
Find out the efficiency of a
Solar Cell
• Complete the experiments on your handout.
• Can you find out the impact of certain variables
on the efficiency of your Solar Cell?
Remember
• When you are conducting experiments and
research, you need to make sure it is a fair
test.
• You will need to have some constants, think
about what they will be in this case.
• You may also want to repeat your tests and
use the mean score.
Find out more about studying
Renewable Energy / Engineering at
university.
https://www.youtube.com/watch?v=_3eWLQviIXA
http://www.whatuni.com/degreecourses/search?subject=engineering&sort=crh
http://www.careerpilot.org.uk/info/a-levels/choosing-your-a-levelswhat-you-/
JoinAny
the Conversation!
question?
#ExeterOpen
Contact:
Tel: 01392 xxxxxx
@uniofexeter
Xxxxxx
@exeter.ac.uk
facebook.com/exeteruni
www.exeter.ac.uk