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Advanced Metering Infrastructure for a Sustainable Göteborg

Learn about the Advanced Metering Infrastructure system (AiMiR) implemented by Göteborg Energi to integrate and develop sustainable energy solutions for a growing Göteborg. Discover the challenges faced and the possibilities for automation, control, and validation in this sustainable energy project.

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Advanced Metering Infrastructure for a Sustainable Göteborg

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  1. DAT300 lecture/Chalmers2018-09-19 Joris van Rooij AMI System specialist @ Göteborg Energi Industrial Ph.D. student @ Chalmers

  2. Contents • Company information • Advanced Metering Infrastructure? • Example: AiMiR • Challenges

  3. Everyday – for a sustainable Göteborg!

  4. Sustainableenergy solutions

  5. Goals The city wants to: Integrate and develop the utility in city development in order to reach a sustainablegöteborg-community. Havesustainable, reliable and affordableenergy for the people in Göteborg.

  6. Our mission Production, distribution and trade in the energy area Ensureaffordable and reliableenergy for the people in Göteborg Be responsible for improvingenergyefficiency in Göteborg

  7. Göteborg Energi numbers 2016

  8. Wegive back to ourowners - ”göteborgarna”

  9. OurfantasticDistrictHeating Provideswarmwater for 550 000 showers everyday Gives warmth to over 90% of the appartmentbuildings in Göteborg. Has a reliabilityof99,98% Transported by 1 350 km pipes through the city Mainly from waste heat Is an example in Europe

  10. OurstableElectricitysupply Runs154 trams, 200 000 hairdryersoch 95 000 streetlights Distributedthrough9 000 km ofcables Reliabilityof 99,99%

  11. Everyday…vi alsoworkwith Gas Districtcooling Broadband Biogas Energy services Charge infrastructure City development ...and many new sustainable solutions for the future!

  12. Göteborg is growing - 2035 150 000 morecitizens 70 000–80 000 new houses 80 000 newjobs

  13. Advanced Metering Infrastructure? • When is it advanced? • AMR Automatic Meter Reading • Log and send events • Send and receive control messages

  14. New demands (2025) • Measure: • Production • Consumption • Active and Reactive • Voltage • Current • For every phase • Every 15 minutes • Realtime data to the customer From 1 value per hour To 13 per 15 minutes

  15. AiMiR • ZigBee based AMI system • Aimir • server • GPRS • Fiber • ZigBee • MCU • Meter

  16. AiMiR facts • 270 000 electricity meters • 5000 districtheating meters • 3000 water meters • 8000 collectorunits • Self-healing radio network • Redundancy in metering values • Power quality data • Power outage events • Breaker function

  17. Challenges • Time • 278001 clocks in the network • How to deal withdisagreements

  18. Hypothetictimesync implementation • Central server • NTP • Collectorunits • Resetsdaily @ 8:00 • Syncstwice a dayagainst the central server (afterreset and 12 hours later) • System clockwith hardware clock as backup • Hardware clocksyncswith system clock right after system clocksync • The hardware clockcan lag manyminutes per day • Meters • Receive a broadcast with the currenttimeonceeveryhour • And earlyduring MCU bootup Whatcouldpossibly go wrong?

  19. Challenges • Big data • 270000 x 24 x 4 x 6 energyreadings • 270000 x 24 x 4 x 6 powerqualityvalues • Loadsof events • Topology data • Noise • Everyday… • Find the information in the data

  20. Challenge - Validation

  21. Challenge - Validation

  22. Challenge - Privacy Higher resolution is coming

  23. Challenge - Automation and control • Increasing demand – Unstable supply • (Automated) Demand response • Requires good estimate of network state • Predict missing values

  24. Challenges Emergence • In otherwords: • Put lots of smart meters on a small area and unexpectedthingsmighthappen. • Wikipedia: • emergence is the way complex systems and patterns arise out of a multiplicity of relatively simple interactions.

  25. Thesisopportunity!! Manychallenges – Manypossibilities! Contact me for more information

  26. Questions? • Joris van Rooij • joris.vanrooij@goteborgenergi.se

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