How smart water meters can help consumers save energy


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Customers spend much of their energy budget on heating water with gas (showers, baths) or electricity (washers). Smart water meters can show them how much and when this happens, so they can become more aware and get information on which they can decide to save on water and energy. (Presentation Smart Water Systems, London, April 28th 2014)

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How smart water meters can help consumers save energy

  1. 1. 1 How smart water meters can help consumers save energy Gerrit Rentier Senior Business Process Analyst DELTA Energy & Multimedia London, April 28th, 2014
  2. 2. 2 Presentation outline  Introduction/ DELTA N.V.  Water conservation and energy use  The role of (smart) meters and feedback modes  Smart meters & multi-utility How consumers’ energy use relates to water and we can enhance energy saving with targeted information.  Dutch smart meter requirements  Proof of concept: putting it to the test  Consumer response to the concept  Lessons learned Technical and organizational lessons, consumer response  Perspectives compared to Smart Homes market  Questions
  3. 3. 3 Look who’s talking: DELTA N.V. • DELTA N.V. is a municipal multi-utility company. Shareholders: Province of Zeeland & local municipalities. • Production, Trade, Supply B2B of Electricity and Gas • Largest Dutch player in renewable energy (PPA for electricity from Gemini wind turbines, 600 MW), also a bio mass, a nuclear and a natural gas power plant; • Waste management services (“Indaver”), Water (“Evides”) • Metering and utility services (nationally) • Locally; internet, (digital) TV, retail energy and water; • DELTA Netwerkgroep, maintenance of infrastructure for water, gas, electricity & cable, incorporating a DSO • As a municipal multi-utility it is in the nature of DELTA to focus on added stakeholder value including sustainability in a multi-utility approach • We are looking for cost efficiency, innovation, consumer empowerment & energy efficiency through integrated offerings; multi-utility, synergy; “Connect” (“verbindt”)!
  4. 4. 4 Behavioral conservation programs & water California water utility East Bay Municipal Utility District saved 5 percent of water through a behavioral program including Home Water Reports (SmartWater, start up) Source: “Evaluation of East Bay Municipal Utility District's Pilot of WaterSmart Home Water Reports “ , David L. Mitchell, M.Cubed, Thomas W. Chesnutt, Ph.D., CAP™ A&N Technical Services, Inc. Prepared for California Water Foundation & East Bay Municipal Utility District April 9, 2014: Palo Alto program; SmartWater partners with OPower (NYSE: OPWR) -home reports -web portal, history -water efficiency tips
  5. 5. 5 Water heating = 27% energy costs.. If consumers get a better understanding of their hot water use then they can see new ways of spending less on energy .. hot water is second only to space heating in savings potential !! Smart Meter Program KSF #1: “Design and deploy with the consumer at the heart of the solution…”  show #1 heating, show #2 water heating, show #3 appliances (washers)
  6. 6. 6 New role of utilities  new role of meters
  7. 7. 7 Potential of smart meters for conservation ACEEE report shows up to 9 or even 12 percent conservation for energy if the information is near real time. ACEEE report shows up to 9 or even 12 percent conservation for energy if the information is near real time… Smart meters can technically enable the first four categories of feedback loops… “Advanced meter reading initiatives and residential feedback programs: A Meta-Review for Household Electricity- saving Opportunities”, American Council for Energy-Efficient Economy (ACEEE), Washington, June 2010
  8. 8. 8 Psychological basis: experiential learning If we present actionable information (“concrete experience”) based on recent smart meter data that tells consumers where they are spending energy (and money), leading to observation and comprehension, then they are enabled to try and save energy and water (“active experimentation”), in heating, hot water, appliances.
  9. 9. 9 Connected: multi-utility smart concept Spending pattern, hot water, washers, smart meters, feedback modes  a test. Target: see if we can put these ideas in action within the technological setting of the Dutch Smart Meter Requirements and find out how consumers respond Personal example Family situation: parents + 3 children <7 year Relation between energy bill and heating of water: Gas 30% € 210 Electricity 35-40% € 246
  10. 10. Dutch Smart Meter Requirements… • P1= HAN, IEC 62056-21 (RJ-11 connector, serial protocol); • P2= wireless MBus, slave meters • DSO rolls out smart E and G meters and facilitates consumers & markets • P0= Maintenance port • P3= GPRS connection, WAN • P4= market interface for ESCO’s, Energy Suppliers (Water companies) “P1- device” (Energy management display, APP, tablet etc) P1 G-meter W-meter Heat meter P2 Central system GSM network P3 P2 P0 Energy suppliers ODA’s Water companies P4 P1 = Consumer port Customer is in control “BYOD”
  11. 11. 11 Combining E, G & W data for consumers • Proof of Concept; graphs basic format, 60 minute refresh G & W, N=50 • We can distinguish volumes for gas attributed to heating from volumes for gas attributed to baths and showers if peaks correlate; • We can distinguish electricity used for washers & dish washers from other uses of electricity if peaks correlate; • Consumers can draw their own conclusions based on near real time information and act. (*) short demo movie proof of concept)
  12. 12. 12 Consumer response to proof of concept Without a campaign, brochures or anything, just 1 letter, still most consumers are positive (left graph) and 48% of the consumers have become slightly more aware of water use (graph below) (“iets meer bewust”)
  13. 13. 13 Consumer response: graphic display Asked if they were able to distinguish the bigger energy ‘culprits’ from the presented data, 48% of the consumers said “Yes”. From these findings and from remarks in the questionnaire, we have become convinced that the response to this concept can be a lot better: 1. if the solution comes with a campaign (a program) and a social media platform; 2. if data for energy and water is shown in one graphical item on popular devices (smart phones, tablets, lap tops) and 3. if data is more frequent (“near real time”, ACEEE findings, experiential learning)
  14. 14. 14 Lessons learned from Proof of Concept • Commissioning and installation process; replication of processes and instructions for “gas” to also cover “water” (or “heat”) is relatively easy • ICT; replication of data structures & interfaces for “gas” to cover “water” (or “heat”); relatively easy • The roll out field tool we have used (“SmarAPP”) supports “Water” in the same way as it supports “Gas” without any significant modifications • Asset Management poses a challenge; Water-meters have no natural place in the DSO’s ICT architecture, so; this requires effort & interfaces • Consumers did generally appreciate the extra data • Consumers want to see the combined information in one easy graphical representation, no ‘clicking’ & hassle • Frequency of 60 minute updates is not very valuable in terms of “experiential learning”; by the time you notice, the chance to act on that information is gone
  15. 15. (A) Tradi- tional meters Regulatory (B) Smart meters Regulatory (EED ) home reports (C) Smart meter E remote (WAN) (D) Smart meter E with device in the home (HAN) (E) “Niche” Smart meter E, with device in the home and near real time data from slave meters (DSMR 5: 2016,..) HAN (WAN) (F) Smart thermostats/ smart homes HAN (WAN) Remote control (Nest, GEO) E Bill (Year) Month 24 hrs (web portal) 10 seconds 1 second (DSMR 5) Real time G Bill (Year) Month 24 hrs 60 minutes 5 minutes (DSMR 5) Real time Free Free Cheap Medium price (+/- 100, 150) Bluetooth/WiFi P1 device; Cheaper Pricey Device +/- 250/350 W Bill (Year) N.A. 24 hrs Not (*) DELTA pilot; 60 minutes 5 minutes Ambition Real time 15 Utility Services, Metering, Smart Homes
  16. 16. 16 Conclusion.. Water, Energy & Nature are valuable resources we as a society should approach with respect .. and in conjunction!
  17. 17. 17 Questions?