1. Residential Real-Time Pricing Is The Real-Deal Anthony Star Director of Policy and Evaluation Transforming the Electricity Market Institute for Regulatory Policy Studies, Illinois State University May 10, 2007

2. The Problem “…95% of all customers -- residential, small commercial, municipal – have absolutely no idea that the price of electricity varies by the hour and that the average of the hourly prices is likely to be significantly lower than the hedged retail price they have traditionally seen. And until they know that, they won’t realize that there is something in it directly for them; that investing in smart meters will give them access to lower cost electricity.” –Testimony of ICC Commissioner Bob Lieberman to the Sub-committee on Energy and Air Quality, Committee on Energy and Commerce, U.S. House of Representatives. May 3, 2007.

3. Every Financial Planner Will Show You http://www.calvert.com/images/new_balancingrisk.gif

4. Why Not Have the Same for Electric Rates? Real-Time Pricing Critical Peak Pricing Time-of-Use Pricing Flat Rate Flat Bills

5. What’s Keeping Us From Having Those Options? To have an appropriate risk/reward scale requires something to differentiate supply and demand Supply: The emergence of wholesale markets allows for price discovery at the hourly level Demand: The individual load shape now matters, not just total usage The culprit for increasing peak demands:

6. The Meter was the Barrier Since before 1900, the best measuring device available Inexpensive, long lasting but limited

7. What Will It Take To Create Pricing and Demand Response Options? Necessary, available today –Interval meters –Rate structures –Education for consumers to overcome behavior created by a century of flat rates Nice to have, still limited availability –Smart Meters (e.g., 2 way communications) –Automation such as smart thermostats

8. A Brief and Simplified History of Innovative Pricing Time-of-use rates have been around for a while –Tend not to be very popular –Tend to require significant shifts in usage to achieve any savings Critical Peak Pricing adds a price signal at high demand times –Gulf Power launched in 2001 –Extensively studied in California –Better focus on reducing peak demand, but similar limitations to time- of-use rates Real-time Pricing connects consumers to wholesale markets –Initially offered to large C&I who had sophistication to follow prices and curtail load when called upon –Community Energy Cooperative brought the concept to the residential market in 2003 with the Energy-Smart Pricing Plan pilot program –New pilots starting up in Washington DC and elsewhere

9. What We Have Learned About Residential RTP So Far? We know that there are good results for –Demand Response –Energy Efficiency –Customer Interest/Satisfaction The next step is to understand how to transform markets. Can we –Lower prices –Create meaningful customer choice –Develop a platform for technological innovation to encourage conservation and efficiency

10. Peak Demand Reductions from Residential RTP -25% -20% -15% -10% -5% 0% 5% 1:00 AM7:00 AM1:00 PM7:00 PM RTP without enabling technology RTP with air conditioner cycling

11. Residential RTP Creates More Efficient Customers Evaluations show –Participants in real-time pricing cut summer usage 3 to 4 percent –Are more likely to buy Energy Star appliances –Feel more knowledgeable about their energy use and feel more able to control it

12. Customers Like Real-Time Pricing How Overall Program Experience Compared to Expectations 0% 10% 20% 30% 40% 50% 60% 70% Exceeded expectations Met expectationsDid not meet expectations Blank

13. Reducing Demand Doesn’t Strain Participants Difficulty in Participating During August 2006 Heat Wave 0% 10% 20% 30% 40% 50% 60% Extremely easy Fairly easy Neither easy nor difficult Fairly difficult Extremely difficult BlankOther

14. RTP can be successfully implemented with relatively inexpensive incremental technology Useful, reliable pricing information is critical component Creates a real opportunity for energy awareness messages Consumer education is needed (want and use energy information relevant to their situation) High price notifications focus people’s attention An automatic curtailment option such as an air conditioner cycling switch or a smart thermostat produces added benefits Conclusions from Pilot Program

15. What We’ve Learned: Overcoming Barriers The industry and residential customers are accustomed to flat rates and need to see beyond traditional regulatory paradigms to see how RTP can combine system benefits, customer choice and increased energy efficiency Education and notification are relatively inexpensive to implement Metering is getting less expensive

16. Legislators and Consumer Advocates Support Expansion of Residential RTP “This just seems to make eminent sense to me-- if you're in a position where you can hold out in the heat of the day and run your air conditioner at night, you're gonna save some money.” –Representative William Black (R-Danville) during floor debate on SB1705, April 4, 2006 “CUB views Ameren’s Tariff as a necessary and important step toward the development of substantial demand response that can provide the discipline lacking in the markets today.” –Testimony of Chris Thomas of the Citizens Utility Board in support of Ameren’s rate filing in Docket 06-0691 (cons.), December 4, 2006

17. “The Grand Experiment” “In examining economic benefits from demand reductions, the Commission shall, at a minimum, consider the following: improvements to system reliability and power quality, reduction in wholesale market prices and price volatility, electric utility cost avoidance and reductions, market power mitigation, and other benefits of demand reductions, but only to the extent that the effects of reduced demand can be demonstrated to lower the cost of electricity delivered to residential customers.” [Public Act 94-0977, Sect 16-107]

18. Can Residential RTP Benefit Everyone? Increasing demand response benefits non- participants more than participants! [Adapted from CUB/City of Chicago Exhibit 3.6, Testimony of Bernie Neenan in ICC Docket 06-0617] $0 $10 $20 $30 $40 $50 $60 $70 RTP Today (-0.047 elasticity) RTP w/some increase in response (-0.096 elasticity) RTP with automation (-0.141 elasticity) (Millions per Year) C&I Customer Benefits Other Residential Benefits RTP Participants

19. Introducing Power Smart Pricing

20. Power Smart Pricing Details Rider PSP adds on to Ameren’s Rider RTP to create an optional program for residential customers. $2.25 per month fee to cover part of the cost of metering and program administration (compared to $5/month for just Rider RTP) 12 month stay required Community Energy Cooperative’s role as Program Administrator is to provide –Outreach/program marketing –Education tools for both efficiency and peak demand management –High price notifications –Online tools –Research and evaluation

21. Prices So Far This Year *AmerenIP BGS1 Prices *

22. Technology Roll-out New website www.powersmartpricing.org launched in early Marchwww.powersmartpricing.org Nexus Energy Software developing new online functionality including –Energy audit –Sophisticated usage and price graphs and analysis tools –Bill comparisons –Customized emails for high price notification

23. Enhanced Online Experience Examples of Nexus web based software displays

24. What Could Come Next Changing people’s behavior and awareness opens them up to interest in Innovative information communications systems New homes with enabling technology built in Grid friendly appliances PriceLight: Engages Consumers The home as a generator: Participate in the market New Technology: Automates efficiency

25. For More Information Anthony Star Director of Policy and Evaluation astar@energycooperative.org 773/269-4017 Community Energy Cooperative 2125 West North Avenue Chicago, IL 60647