1. Impact of 8760 Analysis on Value of Energy Council & RTF use 48 time segments per Year – 12 Months – Four Hourly Time Bins each month Considering move to 8760 time segments – Impact on value of energy – Impact on peak capacity calculations Consider move to 24 time segments per Year – High Load Hours and Low Load Hours by month – Mimic common trading blocks – Faster run time, requires less detail on hourly prices, savings shapes, line losses, carbon, etc.

2. Four-Segment Load Shape Map Four Hourly Segments by 12 Months = 48 Segments

3. Annual 48-Segment Prices (6P)

4. Monthly Price by Hour Segment

5. Evaluate Impact of Hourly Analysis Seasonality: – 48-Seg captures seasonality of prices Hourly: – 48-Seg captures some hourly effects of prices, obscures others – 48-Seg may not capture peak kW impacts Question: How big a difference?

14. Impact Impact of hourly analysis – Depends on shape of savings – Biggest impact if hourly savings shape is different than hourly price shape – Depends on hourly savings shapes within each hourly time bin (or time-segment) Tested against peakiest hourly savings shape – Which savings shape?

15. Which Savings Shape is Peaky Res AC?, Water heat?, Ag Irrigation?, Res COOK

16. ResCOOK Savings Shapes (Weekday January)

17. Results Price ShapeSavings ShapePV 2008PV 2010-2030 48-Segment 6P48-Seg FLAT 51.4501687502834001231.3648528269 8760-Segment 6P8760-Seg FLAT 51.4501687502835001231.3648528267 48-Segment 6P48-Seg ResCOOK 58.9201304.25 8760-Segment 6P8760-Seg ResCOOK 62.2921334.83 48-Segment 6P??? 8760-Segment 6P??? 48-Segment 6P??? 8760-Segment 6P??? ProCost Testing Incomplete Test with Excel

18. End