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www.herts.ac.uk/computerscience
Paint IT Green conferenceWhen should I do my bit?
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Paint IT Green conferenceWhen should I do my bit?
Howard NobleOxford University Computing Services
http://projects.oucs.ox.ac.uk/lowcarbonict/
Wednesday, 8th September 2010University of Hertford
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Strategy A - Leave computers on all year: 110/1000 x (24 x 365) x 16,000 x £0.12 = £1,850,112
Strategy B - Power them down after work: 110/1000 x (10 x 223) x 16,000 x £0.12 = £470,976
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Why are idle computers left on?
1. To allow IT managers to install software updates and make backups
2. So computers can be accessed remotely by end-users
3. Sleep mode (ACPI S3) is unreliable
4. People forget to power them down
5. People don’t like to wait for their computer to start up
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Sin
gle
sig
n-o
n
WOL web pages
Central WOL server
Central Backup service
FiDo software installation
Google Visualisation API
Central PMM server
Request wake on LAN
Request wake on LAN
Send ‘magic packet’
Request wake on LAN
Send ARP query
Sin
gle
sig
n-o
n
PMM web pages
Register and wake computers
Centrally provided IT services
College and department networks
ARP query data
View graph - adjust behaviour accordingly
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Why do this?
1. CRC Energy Efficiency Scheme: http://www.decc.gov.uk/en/content/cms/what_we_do/lc_uk/crc.aspx
2. HEFCE Carbon Management Strategy: http://www.hefce.ac.uk/pubs/hefce/2010/10_02/
3. Help groups reduce costs and enhance their environmental performance
4. Help people make a rational response to the risks associated with climate change
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Consider a population where:
20% have reduced their consumption significantly
30% consume to their heart’s desire
50% mirror the consumption patterns of people close to them
What effect might the 20% have on overall consumption?
a. It will decrease
b. It will stay the same
c. It will increase
A thought experiment:
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Visibility of your action
Benef
it to
plane
t
Inconvenience to you
a. Turn your office computer off every day after work
b. Use 50% less water
c. Use 50% less gas
d. Use 50% less electricity
e. 50% fewer car miles
f. 80% fewer air miles over 5 year period
g. Extend life-cycle of an IT device by 3 years
h. Give £5 to a charity
i. Give £1000 to a charity
j. Persuade a friend to do any of the above
k. Persuade a group (school, workplace) to do any of the above
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What do individuals think when they see statistics that are meant to motivate them to
change their behaviour?
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The MO project
Open data Social capital
Culture of action on environmental issues
Access, store and share energy data
Visualise data so people can understand how they relate to it
Link energy data with other relevant data sets
Facilitate the emergence of trust and altruistic punishment
Enable people to form groups and make comparisons between groups
Representation of social capital
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Social Capital + Open Data
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Social Capital + Open Data