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Customer-side Smart Grid Technologies How will they change utility offerings?

Customer-side Smart Grid Technologies How will they change utility offerings?. Association of Women in Water, Energy , and Environment Workshop May 22, 2012. Karen Herter, Ph.D. Smart Grid Elements. What does the “Smart Grid” do for customers? . Real-time Information

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Customer-side Smart Grid Technologies How will they change utility offerings?

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  1. Customer-side Smart Grid TechnologiesHow will they change utility offerings? Association of Women in Water, Energy, and Environment Workshop May 22, 2012 Karen Herter, Ph.D.

  2. Smart Grid Elements

  3. What does the “Smart Grid” do for customers? • Real-time Information • Improves understanding of energy use • Time-based Incentives • Accurately rewards energy management behaviors • End-use Automation (cost-effectiveness) • Simplifies energy management by customer or utility

  4. Customer-side SmartGrid Technologies • Monitor energy use • site or appliance • Display electricity prices • Estimate energy costs • Notify customers of utility price or event signals • Automate response to utility price or event signals • Centralize customer control of appliance activity

  5. 1. Real-time InformationCustomers want personalized information & advice • Smart Meters = DATA TO UTILITY • Improved customer service by bill, phone or Internet • Customer load shapes  personalized recommendations • Program EVs, spas, and pool pumps for off-peak • Install more efficient AC unit • Offer free site visits for outliers? • Energy Displays = DATA TO CUSTOMERS • Many potential applications • Real-time household electricity use • Customer-specific electricity pricing • Bill calculators with “what-if” scenarios • Event notification • Via mobile app, PC, or thermostat display

  6. Bill Comparison Summer Solutions rate participants received a Bill Comparison Report, showing bill savings or losses compared to what they would have paid on the Standard rate

  7. PC Energy Display

  8. PC Energy Display

  9. Thermostat Energy Display • Screen with instantaneous kW and daily kWh • Scroll through appliances one at a time for Appliance group • Can be made default screen

  10. 2. Time-Based RatesRewards are directly proportional to actions N = number of studies • TOU-CPP rates have been found to be particularly effective • especially when paired with thermostatic automation • Added benefit of daily peak load reduction (not shown here)

  11. Example TOU-CPP Rate

  12. 3. End-use AutomationMore cost-effective when paired with time-based rates • Rate structure determines the technology • Time-of-use rates  Programmable thermostats & timers • Dynamic pricing  Communicating thermostats & switches • Provide technology assistance and financing options • Rebates where cost-effective • Options to purchase, rent, or borrow technologies • Assistance with installation and use • Market determines technology form factors & features • Standard protocols to enable plug and play technologies • Ideally utilities recommend, customers choose

  13. Putting it all together…Information + time-based rates + automation • Both energy and peak load savings on non-event days • Significant load shed during events, with some pre-cooling and rebound • Even a small percentage of participating customers (10-20%) could have a substantial effect on the system load shape

  14. Information isn’t enoughthose with information only didn’t do much • “Neither option” = information only • Peak and event load reductions greatest for Dynamic Rate -8% -36% -53% -58% -8% -23% -24% -3% -9% -10% -8% Statistically significant kW savings over ATC Values in bold indicate a statistically significant difference from “Neither option”

  15. Information enhances savingsbut those without real-time information do well too

  16. Studies Currently In ProgressARRA SGIG Consumer Behavior Studies

  17. Thank you! • Information in this presentation based on: • 2008 Small Business Summer Solutions Study report • 2010 Residential information & controls technology review • 2010 Residential focus group summary • 2011 Residential Summer Solutions Study report • To download these and other reports visit: www.HerterEnergy.com

  18. Contact info: Karen Herter Herter Energy Research Solutionswww.HerterEnergy.com 916.397.0101

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