Parasol: A Solar-Powered µDatacenter
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Parasol:A Solar-Powered µDatacenter
Íñigo Goiri
Ricardo Bianchini, Thu D. Nguyen
Team: Josep Lluis Berral, Md Haque, Bill Katsak, Kien Le
Department of Computer Science
What’s the problem?
Climate change directly related to CO2 emissions ICT industry footprint = Aviation
Will double until 2020 Our focus so far: Data centers
Found in enterprises, universities, Internet services Energy consumption translates into high operational cost Energy consumption (indirectly) releases CO2 into the air
ICT = Information and Communication Technology [Climate Group’08]
Nigeria DCs Czech Rep.
0
20
40
60
80
100
120
14035th 34th
MM
T/ye
ar
2000 2005 20100
30
60
90
120
150
180
210
240
270
Billi
on K
Wh/
year
Impact of data centers
Electricity usage of worldwide DCs [JK’11]
CO2 of worldwide DCs [Mankoff’08]
1.5%
What’s the solution?
Reduce footprint by leveraging renewable energy
Bring solar and/or wind Co-location
Self-generation
Small and medium data centers
Solar and wind are clean
Wind (o
ff-shore)
Hydroele
ctric
Wind (o
n-shore)
Biogas
Solar
therm
al
Biomass
Solar
PV
Geotherm
al
Nuclear
Natural
gas
Diesel
Heavy
oilCoal
0100200300400500600700800900
1000
g CO
2e p
er K
Wh
over
life
time
[Sovacool’08]
Main challenge: Supply of power is variable!
Solar power
We need to match the energy demand to the supply
Workload
Now
Solar-powered computing On/off grid
Software to exploit renewables within and across DCs Tradeoff between
Renewables Batteries Grid energy
Addressing the challenge with ParasolPo
wer
(kW
)
Time
SolarAvailable
April’12December’10