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DEER2020 and Revised DEER2019

Stay updated with the latest changes and additions to the DEER2020 and revised DEER2019 data. Access measure updates, peak period changes, building prototypes, HVAC savings, lighting updates, code updates, and more.

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DEER2020 and Revised DEER2019

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  1. DEER2020 and Revised DEER2019 Energy Division California Public Utilities Commission September 10, 2018

  2. Welcome Agenda: • Accessing the DEER2020 and revised DEER2019 Data • Peak Period Change • Building Prototype Update • Measure Updates • High Efficiency Furnace Fan • Expanded HVAC Savings Methods (including Lead Chiller) • Extended Hours Prototype (not included) • Lighting (including code updates) • Code Updates • Commercial HVAC • Residential Shell • Water Heater • Net-to-Gross Ratio Update • Effective Useful Life Update • Gross Realization Rate Update • MASControl Software Update • Additional questions

  3. Accessing the 2020 Update Data • DEEResources.com • Main Menu => DEER Versions =>DEER2020 Update • This web page currently covers all proposed updates and additions that are part of the August 2020 update, including measures starting in 2019. • The web page provides descriptions and links to all supporting documents. • READI • Version 2.5.0 is a minor update that accommodates the new start dates of the latest proposed measure updates. The Measure Catalog and Weights tabs of the interface are no longer available. • Download the READI program from DEEResources.comMain Menu => DEER Versions => READI

  4. Accessing the 2020 Update Data • PEAR database • All proposed DEER updates are currently in the Preliminary Ex Ante Review (PEAR) database. • To view all the DEER Measures impacted by this update: • Open the PEAR database using READI, • On the Measures tab, click on the heading of the “Source Desc” column, • Select only source descriptions that begin with “DEER2020” or “DEER2019”. • The Measure List is then filtered to show only the measures impacted by this latest update. • Scroll, filter or search the Measure List to find measures of interest.

  5. Accessing the 2020 Update Data • PEAR database • The Support Tables tab of READI includes these updates: • Under the Cost Effectiveness Group • NTG Ratio (2020), this table has a new format. • EUL, filter the EUL_Basis table for Version = “DEER2020” • Under the Energy Impacts Group • 2020 Res Indoor Lighting Values • 2020 Com Indoor Lighting Values • Changes to data in the PEAR database during the review period are noted in the PEAR change log (link on web page).

  6. PEAR Change Log

  7. PEAR Change Log

  8. Peak Demand Update • Motivation for update • Alignment with other CPUC policy areas • Account for both total grid load and net (less renewables) grid load • Considerations • Allow time needed for updates across DEER, workpapers and custom methods

  9. Peak Demand Update • Peak Period hours changed • From 2 PM - 5 PM to 4 PM - 9 PM effective 1/1/2020 • Method of selecting days unchanged The three consecutive weekday period within June 1 to September 30 not including a holiday containing the highest algebraic sum of: The average temperature over the three day period, The average temperature from noon to 6 p.m. over the three day period, and The peak temperature within the three-day period.

  10. Building Prototype Update Update commercial prototypes to align with DEER2016 update • Update lighting hours-of-use • Expanded and reconfigured activity areas

  11. Building Prototype Update Building Vintage Consolidation For the current DEER2020 update, these vintages were created by weighting results from the previous (more detailed) DEER vintage definitions.

  12. Building Prototype Update Specifying vintage using DEER2020 • If building vintage is known, use the appropriate vintage (old, median, recent or new) • If building vintage is not known, use the Median vintage • The code used in the ex ante database for the median vintage is “Ex”, so that previous specifications will be compatible with the new data.

  13. Building Prototype Update Other vintage updates • Pre-2007 vintage lighting power densities updated to 2007 vintage levels • Pre-1996 vintage central plant and multizone HVAC updated to 1996 vintage levels • Added supply air temperature reset control for pre-1996 vintages • Added reset control to chilled water loops • Motors changed from standard to high efficiency

  14. Building Prototype Update Error Corrections • Outdoor air ventilation requirements – typically 50% higher than previous DEER • Residential window area was oversized by 18% in DEER2017 • Residential two-speed AC and HP measures: fan power was overstated to be high by 15% in low speed mode

  15. New Measure Furnace Fan Efficiency • Stand-alone supply fan motor efficiency upgrade (18% decrease in fan power) • Residential and commercial furnace efficiency with high efficiency supply fan motor

  16. HVAC Chillers (2020) • Impacts revised • using updated prototype definitions • DEER sizing methods • peak demand period revision • Lead chiller impacts • Included in the chiller calculation tool (for use in custom projects only) • Extended hours prototype not included

  17. Chiller: Large Office - kWh • DEER2017 and DEER2020 code baseline and measure technologies are identical. • DEER2017 is the "existing" vintage (heavily weighted toward pre-1993 building vintage definitions) • DEER2020 is the default "median" vintage (2002 - 2016)

  18. Chiller: Large Office - kW

  19. Chiller: Community College - kWh

  20. Chiller: Community College - kW

  21. Lighting Updates - 2019 • Workpaper values migrated into DEER • PGECOLTG151: Parking garage and outdoor LED fixtures • PGECOLTG178: Interior high and low bay LED fixtures • Workpaper values updated for DEER • PGECOLTG179: Interior fixtures; baseline updated to 100% LED

  22. Lighting Updates - 2020 • Parking garage and outdoor LED fixtures: all baselines updated to 100% LED based on 25th percentile of available products. • Removed indoor multi-family common area measures due to codes updates which made the hours-of-use and coincident demand factors out-of-date.

  23. Lighting HVAC IE All lighting HVAC interactive effects values have been updated. The following changes impact the new IE values: • Updated activity area specifications in the building prototypes. • Changes are based on the DEER2016 commercial lighting CSS update which defined new lighting profiles and activity areas for all commercial buildings. • University and Community College activity areas were further updated based on California State University Space and Facilities Database (SFDB) • Updated lighting categories: • Hardwired (previously referred to as Linear Fluorescent • Screw-In (previously referred to as CFL) • High-bay (previously used the same values as Linear Fluorescent)

  24. Lighting HVAC IE • New building vintage definitions • Previously, IE factors were published for two vintages: New, and the weighted Existing vintage. • IE values are now published for the four new standard vintages. • Occupancy sensor scenarios are no longer used • The lighting hours-of-use by activity area used in the updated building prototypes are based on CSS survey and monitored data which does not distinguish between the different occupancy sensors scenarios. • The new IE values are comparable to the default “Building-wide Occupancy Sensor” scenario used in previous DEER versions. The new data are available in READI under the Energy Impacts group in the support tables tab and in a workbook linked to the DEEResources web page.

  25. Code Updates • Commercial HVAC • New Title-24 requirements for ventilation • Increased exhaust for some activity areas • Increased cooling tower efficiency • Residential Shell • Roof insulation for buildings with ducts in attic • Wall insulation increase by 7% • Window performance values increase by 5%

  26. Water Heaters • Residential and small commercial updated with UEF ratings • Gas 30/40/50 gallon, medium/high draw • Gas tankless, low/medium/high draw • DEER2019 update based on previous vintage and peak demand definitions • DEER2020 update based on revised vintage and peak demand definitions

  27. Water Heater UEF Rated Products 40 gallon storage water heater data is available: • 166 code level products • 80 EnergyStar products • Therefore included in DEER

  28. Water Heater UEF Rated Products 50 gallon residential duty commercial data is not available: • No code level products • 20 EnergyStar high draw units • Therefore not included in DEER

  29. MASControl Updates New MASControl3 interface for managing simulations • Standalone program written in Microsoft Visual Basic • Has options to save simulation input and output files • Operates on SQLite databases for model input parameters and simulation results • Uses DOE2.3 calculation engine for all simulations except grocery and refrigerated warehouse, which use DOE2.2R • Process documentation and support documents are available from the DEEResources web page

  30. MASControl Updates Data management for MASControl3 • Prototype and measure data are stored in a database. • MC3 runs a simulation for each technology case (pre-existing, code/standard and measure) involved with a measure definition. • Sizing data is saved from the pre-existing technology case and transferred to the code/standard and measures technology cases as specified in the measure definition. • The annual end-use values, whole-building hourly demand values and end-use hourly demand values for each technology case are saved. • Post-processing of results takes place in a separate db.

  31. Effective Useful Life (EUL) • Behavioral, Operational and Retrocommissioning measures • D.16-08-019 created BRO category 1/1/2017 • Add-On Equipment (AOE) measures • Resolution E-4818 (2017) re-affirmed the long-standing policy • LED screw-in A lamps • As a result of laboratory testing, reduced the life from 20,000 to 10,000 hours, effective 1/1/2019

  32. Retrocommissioning EUL is 3

  33. Add-On Equipment (AOE) • Re-affirm the long-standing policy that EUL values for add-on equipment measures are limited to the RUL values of the host equipment • The exception is when the add-on measure is part of a new installation then EUL of the add-on equipment is limited by the EUL of the host equipment.

  34. AOE Examples

  35. AOE Examples

  36. LED screw-in A lamps

  37. Default Gross Realization Rate for Custom Projects Decision 11-07-030 set default gross realization rates (GRR) to apply to all custom projects which do not have an alternate value or specific gross energy savings values set because of an ex ante review process disposition. • Current default is 0.90 for all PAs for all projects and all savings values (kW, kWh and therm)

  38. Default GRR for Custom Projects • Decision 12-05-015 recounted the 2006-2008 overall custom project gross realization rates varied by utility, but were generally between .55 and .80 across energy savings values and utility. One set of results insufficient to make change. • Results for the 2010-2012 and 2013-2015 program cycle evaluations are now available

  39. Default GRR for Custom Projects

  40. Default GRR for Custom Projects Although an update to the default gross realization rate for custom measures and projects is within the scope of this Resolution and is indicated by evaluation results, Staff determined that the values established by Decision 12 05 015 may not be modified through Resolution, thus remain 0.90 at this time.

  41. Net-to-Gross for DEER2019 • Overall table streamlining • Application of “to-code” adjustment for accelerated replacement measures • Clarification that NTG values are applicable to all measure application types • Removal of hard-to-reach NTG values • All LED hard-wired lighting moved to 0.91 (Tied to moving baselines to 100% LED)

  42. Streamlined NTG Table

  43. NTG: Accelerated Replacement NTGBC = NTGAC x NTGAdjustment Factor SavingsNET = GrossAC x NTGAC + GrossBC x NTGAC x NTGAdjustment Factor NTG Adjustment Factor = 0.50 Source: See Figure 7 on page 18: “Energy Efficiency Potential and Goals Study for 2018 and Beyond Final Public Report” prepared for California Public Utilities Commission” by Navigant Consulting, Inc. September 25, 2017.

  44. NTG Applicability - Highlights • NMEC (added by E-4818) • Custom projects therefore use custom project NTG • Existing conditions baseline therefore AR measures subject to below code NTG adjustment • Other E-4818 delivery mechanisms and measure application types shall use DEER NTG values

  45. Removal of “Direct Install into Hard-to-Reach” NTG • DI-HTR NTG was added in 2008 on the assumption that there may be lower free-ridership in some historically underserved markets. • Evaluated NTG results from 2006 – 2015 across programs do not support that DI-HTR assumption.

  46. Upstream Package HVAC NTG • HVAC1 (2013-14 evaluation) focused on commercial upstream • Upstream program covers all market sectors • HVAC1 updated methodology over previous studies • DEER uses HVAC1 results for all sectors including residential

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