California Compliance Software Symposium III

1. California Compliance Software Symposium III California Museum, Sacramento, CA November 5 & 6, 2018

2. Software Symposium III – Day Two Agenda • 8:30 – 9:00 Check-in and Refreshments • 9:00 – 9:20 Welcome, Safety Moment, Introductions (TRC) • 9:20 – 10:10 Recap, Vision, and Goals (SCE) • 10:10 – 10:30 CEC Updates • 10:30 – 10:50 Break • 10:50 – 11:30 Ideation: invited presentations and discussion • 11:30 – 12:15 Lunch (Ideation discussion continues) • 12:15 – 1:20 Ideation, continued • 1:20 – 1:30 Break • 1:30 – 3:15 Prioritization and Planning • 3:15 – 3:30 Summary, Communications, and Next Steps

3. Welcome, Safety Moment, Introductions

4. Logistics • Safety Exit: • Wait for Museum staff to escort us out of the room • Exit out of the room, follow green ‘exit’ signs. • Meet outside the museum at 11th and O (LaBou) • Wireless: • Museum_Conf_Rm • Statehood1850

9. Recap, Vision and Goals SCE

10. California Software Symposium #3 Southern California Edison’s clean energy customer-empowerment framework

11. Symposium - Reminder To facilitate a collaborative environment with industry leaders for long-term planning & coordination on the subject of building energy modeling in California. • Exchange of Ideas • Individual Presentations • Themed Sessions • Encourage Discussion (two-way conversation) • Solutions Focused • Respectful

12. Symposium III : Recap • Fixed Baseline • Metrics • Adding Energy Rate Functions • Integrating Title 24 into the design process • Reach Code Opportunities • Prioritization • Concerns over competition • Slow Development • Resource Constraints 12

13. CA IOU Software Related Activities – Res 2018 On-Going Projects • Monthly IOU Software Collaboration Meetings • Field Studies to Support Software Development • HPWH and MF HPWH 13

14. Coordination Process Goals Educate Users Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Symposium Webinar (Updates & Steering) Project Development Symposium (Goals & Priorities Setting) Project Development Capabilities & Accuracy Streamline Processes

15. Goals

16. Symposium Goals • Educate Users: Support California’s long-term climate action goals by encouraging, training, and educating on the use of BEM tools. • Increase Capabilities & Accuracy: Accelerate the introduction of new simulation capabilities into BEM tools while increasing simulation accuracy. • Streamline Processes: Provide a statewide framework that allows a single energy models to be used for: (a) informing energy design decisions (b) proving compliance with CA Energy Code and local Reach Codes, and (c) applying for public customer incentive programs and certifications. 16

17. Education

18. Education (Ruby) Goals • Energy Education Center Classes • Beginning Energy Pro 7 Residential • Advanced Energy Pro 7 Residential • CBECC Res- In the process of being developed Educate Users • Online Self Training • Residential Standards & Technology for Building Envelope • Residential Standards & Technology for Solar Systems • Advanced Energy Pro 7 Residential • CBECC Res- In the process of being developed • Decoding Talks • Nonresidential Lighting • CBECC-Com

19. Streamlining

20. SCE’s Clean Power & Electrification Pathway

21. Program Design Goals Educate Users = + Streamline Processes

22. Emissions Value – Integrated Resource Plan “Umbrella” planning proceeding to consider all electric procurement policies and programs. To ensure CA has a safe, reliable, and cost-effective electricity supply.

23. Grid Value - Locational Net Benefit Analysis Location-specific avoided electric grid cost to represent what the utility would have procured in the absence of Distributed Energy Resources.

24. Demographic Value – Cal EnviroScreen Identifies California communities by census tract that are disproportionately burdened by, and vulnerable to, multiple sources of pollution.

25. Clean Energy Homes (In Development)

26. Clean Energy Homes Example Design Incentive (To Builder/Designer) • Baseline Carbon Budget = 32 mtCO2e • Permitted Design = 12 mtCO2e • Saved Emissions = [32 – 12] = 20 mtCO2e • Incentive Calculation = [$100 / mtCO2e] x [0.75 grid factor] x [0.8 demographic] = $60 / mtCO2e • Design Incentive (One Time) = [20 mtCO2e] x [$60 / mtCO2e] = $1,200 Performance Incentive (To Bill Payer of Same Home) • Baseline Carbon Budget = 12 mtCO2e / year • Performance = 7 mtCO2e / year • Saved Emissions = [12 – 7] = 5 mtCO2e / year • Calculation = [$100 / mtCO2e] x [0.75 grid factor] x [0.8 demographic] = $60 / mtCO2e • Performance Incentive (On Going) = [5 mtCO2e] x [$60 / mtCO2e] = $300 / year or $25 / month

27. SCE Multifamily Modeling Analysis Presentation for California Software Symposium III November 6, 2018

28. Project Overview/Recap • Review modeling outputs of typical multifamily and mixed use building types • Highlight differences between CBECC-Res and CBECC-Com • Recommend improvements to ACM and modeling software • Review existing multifamily prototypes • Inform efforts to redefine multifamily prototypes

29. Proposed Recommendations: Unified Multifamily Modeling Software • Unify software for low-rise and high-rise modeling • Model all space and systems types found in multifamily buildings through a single interface • Identify software limitations that result in modeling lower efficiency in the proposed design than is designed and installed

30. Proposed Recommendations: Modeling Mixed-Use Buildings • Single software for modeling residential and nonresidential spaces • Model shared systems and building envelope components. • Aggregate residential and nonresidential results for overall building performance • Unified set of compliance forms for more straightforward code compliance verification • Streamlined modeling and analysis for demonstrating code compliance

31. Proposed Recommendations: Prototypes • Develop new prototypes to better reflect construction trends and GHG savings opportunities • Identify characteristics that vastly over- or under-estimate energy use • Need all efficiency choices to be modeled

32. Software Issues/Questions • Should there be a single multifamily software tool? • Should it include nonresidential space modeling? • Are there other alternative options? • Should the software be capable of modeling shared systems between residential and nonresidential spaces? • What are the characteristics that are vastly over or under-estimating energy use for both HR and LR? • Are there software limitations that result in lower efficiency specifications in the model than in the proposed design? • How well do current prototypes address future construction and systems?

33. Break – 10 minutes Next up: Ideation – Invited Presentations • Residential Modeling – Bruce Wilcox • CEC Perspectives – MaziShirakh • ASHRAE Standard 205P – Neal Kruis • Recaps from Day One Presentations

34. Residential Modeling Bruce Wilcox

35. CBECC-Res 2019 Wilcox

36. Agenda CBECC-Res 2019 and EDR New in CBECC-Res 2019 Current work Wilcox

37. CBECC-Res 2019 and EDR • Compliance by Energy Design Rating (EDR) • EDR of Proposed < EDR of Standard Design • EDR is a rating relative to 2006 IECC • EDR is calculated in 2019 TDV terms • 100 is equal efficiency to 2006 IECC • 0 is ZNE • Dual Compliance Criteria • Efficiency EDR – includes envelope, HVAC, DHW • New Self Utilization Credit for batteries • Final EDR – adds PV, battery, demand response Wilcox

38. Dual Compliance Criteria Wilcox

39. EDR Calculation TAB Wilcox

40. Energy Use Details TAB Wilcox

41. New in CBECC-Res 2019 Self Utilization Credit for batteries Electric Standard Water Heating PV Scaling Target EDR CO2 Emissions Wilcox

42. Self Utilization Credit for batteries • Requires: • PV system • 5 kWh or greater battery • Credit against Efficiency EDR • Up to ~ 90% of the difference between 2016 and 2019 prescriptive envelope requirements Wilcox

43. Electric Standard for Water Heating • If electric DHW in Proposed, the Standard Design DHW is now: • Generic UEF 2 HPWH • Basic compact distribution • Shower Drain Water Heat Recovery in some climates • Better windows in CTZ 16 • Not yet available for multi-family central DHW Wilcox

44. PV Scaling • CBECC-Res saves time by sizing the PV system automatically, options: • Same PV as Standard Design • PV sized to Maximum annual kWh production Wilcox

45. Target EDR • CBECC-Res saves time by sizing the PV system to achieve a target Final EDR Wilcox

46. Target EDR • Single Orientation or All Orientations Wilcox

47. CO2 Emissions Automatically Reported Wilcox

48. PV Sizing Limit • For Part 6 Compliance: • No battery: Max PV kWh production = annual consumption • >5 kWh battery: Max kWh production = 1.6 x consumption • For CALGreen and/or ZNE • With battery and approval there is no limit on PV size Wilcox

49. Battery Inputs Wilcox

50. “Basic” Control Dumb Battery. Knows only PV output and site electric load. This is a current PowerWall II. Charges using any excess PV production. Improves self utilization of PV kWh. Discharges to meet any on site demand that is not met by PV Never charges from or discharges to the grid TDV savings depend on site load coincidence with high TDV. No cooling means small savings. Wilcox