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Integrating data centers in the modern sustainable city
Erik Rylander, Head of Stockholm Data Parks at Stockholm Exergi
Datacenter Restwarmte & Innovatie 2018
Amsterdam, Oct. 10. 2018
Stockholm – A Circular City
It’s time to think of data centers as a resource in the city infrastructure
2018-06-24 Green Computing Redefined 2
• Started in 1950’s
• >10 000 buildings connected (95% in city center)
• Water based heat transport
• 2 800 km under ground piping
• 12 TWh/y heat supply
• 90% renewable energy
• 5 major heat and power production units with a total capacity of 4000 MW heat and 650 MW electricity
District heating in Stockholm
2018-10-16
District heating network
3 Green Computing Redefined
Need for Heat and Alternative Production
2018-10-16
Hours, Thousands
Pow
er, M
W
Expensive to build, “cheap” to run
“Cheap”
to b
uild
, expensiv
e t
o r
un
Household, Construction, Industry waste, Biofuels
Coal
Heat pumps
Bio oils
Biofuels
Green Computing Redefined 4
Imagine a place where the
energy is green and excess
data center heat isn’t wasted.
Imagine Stockholm.
The Stockholm Data Parks initiative will contribute to completely phasing out fossil fuels in Stockholm by 2040.
Heat recovery
Residential
heating Cooling Machine
Data Center
Heat
rejection Waste heat
Fossil
electricity
To Green From Brown…. To Grey....
Green computing redefined
2018-10-16
Free air cooling
Data Center
Heat
rejection
Renew.
electricity Data Center
Renew.
electricity
Chilled water
6 Green Computing Redefined
Customer References
Heat from more than 30 data centers is reused in Stockholm Exergi’s district heating networks
Green Computing Redefined 7 2018-10-16
Your Hub for Northern Europe
• 100+ m market within 30 milliseconds roundtrip
• 17 ms Frankfurt, 16.7 ms Amsterdam, 10.7 ms Hamburg
• Validated by AWS decision to locate in Greater Stockholm
Short Time To Market
• Sites and infrastructure available and prepared
Low cost
• Green power at 0.04 Euro/kWh
• Paid for data center heat reuse
• OPEX saving of $50-100 million over 10 years for a 10 MW data center load
Unparalleled sustainability
• Net climate positive
Stockholm Data Parks
Green Computing Redefined 9 2018-10-16
2018-10-16
Sweden – Electricity
70 000 MWh < Consumption < 150 000 MWh
Excluding VAT and other recoverable taxes and levies
Euro, per kWh, Eurostat 2017S1
Green Computing Redefined 11 2018-10-16
Opex Savings in Stockholm Data Parks
+100 million EURO savings on OPEX over 10 years
OPEX
Electricity items Germany Unit Comment Stockholm Unit Comment
Power cost, per kWh 0,13 EURO 0,043 EURO
Hours 8760 h 8760 h
Data Server Capacity, MW 10 MW 10 MW
Load 100% 100%
Annual MWh 87 600 MWh 87 600 MWh
# Years 10 yrs 10 yrs
IT Power Cost, all yrs 113 880 000 EURO 37 668 000 EURO
Cooling electricity, all yrs 17 423 640 EURO N+1 Chiller with free cooling mode 14 012 496 EURO N+1 Heat pumps, 8760h
Other, all yrs 12 526 800 EURO 4 143 480 EURO
TOTAL, all yrs 143 830 440 EURO 55 823 976 EURO
Heat recovery Payment, all yrs 0 EURO -24 845 372 EURO 13 MW heat including HP, 8760h payment
Delta, all yrs 0 EURO -112 851 836 EURO OPEX Saving
Total annual electricity, MWh 110 639 Mwh 129 823 Mwh
Chiller w/ free coooling mode Stockholm Data Parks - Customer Heat Pump
Green Computing Redefined 12 2018-10-16
2018-10-16
Sweden – Generation mix and Carbon footprint
Average grams CO2/kWh from power generation, 2013
Power generation mix, Sweden 2015
Green Computing Redefined 14 2018-10-16
• Data center heat reuse makes a significant contribution to reducing global CO2 emissions by replacing more CO2 intensive means of heating the city
• In Stockholm Data Parks data centers can become net climate positive
Sustainable
Stockholm Data Parks Net CO2 tonnes of a 10 MW data center load with
renewable electricity and Cooling as a Service with Heat recovery, yearly
Tonnes CO2
-7.950
-9.000
-7.000
-5.000
-3.000
-1.000
Tonnes CO2
Green Computing Redefined 15 2018-10-16
CONCLUSION
Green Computing Redefined
In Conclusion
Low costs
• Lowest electricity price in EU
• Cooling as a service for free,
or paid for heat recovery
Green
• Reuse of waste heat
• Renewable electricity
• Net climate positive DC
Short time-to-market
• Prepared sites
• Coordinated partners
The Stockholm connection
• 100+ m market within 30 ms
roundtrip
• Business and finance hub of
Northern Europe
• World’s largest dark fiber network
Green Computing Redefined 17 2018-10-16
Don’t waste
your energy!
Erik Rylander
Head of Stockholm Data Parks
Stockholm Exergi
+46 70 693 51 84
http://stockholmdataparks.com/
https://www.linkedin.com/company/stockholm-data-parks
https://twitter.com/sthlmdataparks
