2018 NYStretch- Energy Kickoff Meeting · PDF file2018 NYStretch-Energy Kickoff Meeting ... •Overview of project team, ... •Policy Recommendations report is completed, development

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©2017, New Buildings InstituteAll Rights Reserved © 2017 New Buildings Institute

June 8, 2017

Albany, NY

2018 NYStretch-Energy Kickoff

Meeting

All Rights Reserved © 2017 New Buildings Institute

Agenda• Welcome and Policy Context – Priscilla Richards, NYSERDA

• NYC Policy Context – John Lee, NYC Mayor’s Office of Sustainability

• Overview of project team, process and timetables – Priscilla Richards and Jim Edelson, NBI

• Overview of technical approach – Priscilla Richards, Jim Edelson and Kevin Carbonnier, NBI

• Multifamily Opportunities for Considerations

• Discussion and feedback on Structure and Approach – All

• Lunch break (45 minutes)

• Commercial, Multifamily and Residential modeling approaches and considerations – Bing Liu and Maria Karpman, Karpman Consulting

• Code measures for consideration – Jim Edelson and Mark Lyles, New Buildings Institute

• Discussion and formation of workgroups – All

• Update on 2016 NYStretch – Energy Status and Implementation Plans – Priscilla Richards

• Wrap-Up and next steps

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Welcome and Policy Context

Priscilla Richards - NYSERDA

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Stretch Energy Code Concept

• Results in more energy savings than a base energy code • Mandatory or voluntary mechanisms

• Adopted by cities• Used for public buildings• Tax or other incentive programs

• Signals where future codes are going• Can work in tandem with utility programs - regulatory, timing,

and savings

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• Regulatory Reform (PSC) – reshaping NY’s electric industry and utility business practice to encourage the cleanest, most advanced, and efficient power system operation

• Market Activation (NYSERDA) – addressing market barriers and gaps; redesigning NY programs to accelerate clean energy market growth and unlock private clean energy investment

• Leading by Example (NYPA) - deploying innovative energy solutions across State-owned buildings, university campuses, and State vehicle fleets

Reforming the Energy Vision (REV)REV is a comprehensive strategy to build a clean, resilient, and affordable energy system for all New Yorkers, with a focus on three core approaches to drive transformation

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ny.gov/REV4NY

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• NY Stretch Energy Objective – Provide readily-adoptable code language for local governments in NY that will deliver energy efficiency performance significantly above anticipated 2019 NYECC code

NY Stretch – Energy Objective

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What is NYStretch-Energy?

“Overlay” code, or alternative compliance path,for local adoption (as MRLS)

+ More rigorous than base energy code

+ Results in buildings that achieve greater energy savings and reduced GHG emissions

+ Anticipates successor code advancements, culminating in a statewide Net Zero Energy code by 2028/30

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NY Stretch in Context

Part of NYSERDA’s suite of code-related activities:

Online and classroom trainings

Municipal support/plan review

Code Commentaries

http://www.nyserdacodetraining.com/

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Benefits of a Stretch Code• Lower building operating costs/increased energy savings

• Increased occupant comfort

• Improved resiliency (with regard to power disruptions)

• Signal transition to performance-based codes

• Allows design flexibility

• Stimulates R&D and commercialization of products/systems to improve energy efficiency performance

• Provides consistency while leveraging developed above-code infrastructure

• Alignment with utility programs

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Overview of Project team, Process and Timetables

Priscilla Richards, NYSERDA

Jim Edelson, New Buildings Institute


NYSERDA’s NYStretch Team

• Project Lead – New Buildings Institute

• Administrative support and planning –IBTS

• Commercial and multifamily modeling –Pacific Northwest National Labs

• Residential modeling – Earth Advantage

• Guidance on application and jurisdictional implementation – Pace Energy and Climate Center

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Approach

• Build on structure of 2016 NYStretch

• Supplement of amendments for local adoption

• Full development process including public comments

• Suitable for utility programs• Allow for implementation support

from NYSERDA


2016 NYStretch-Energy Commercial Structure Diagram

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2016 Commercial Results


2016 NYStretch-Energy Residential Structure Diagram

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2016 Residential Results

• 14% savings (weighted average) both electric and gas

• Modeled HERS index (weighted average) dropped from 7-8 points from baseline to NYStretch home

Climate Zone Baseline ERI (for 2015 prescriptive

approach home)

NYStretch ERI

(modeled; includes

most NYStretch

provisions)

Proposed

NYStretch ERI for

homes <3000SF

Proposed NYStretch ERI

for 3000 SF+ home

4 63 55 54 50

5 64 56 54 50

6 62 55 54 50


2018 NYStretch

• Code Application• Multifamily and modeling compliance

• Measure development• Survey existing efforts (IECC, ASHRAE 90.1/189.1/CA T24)• Cooperating with Zero Cities efforts and Washington State efforts• Examine range compliance options (ERI/HERS scores)

• Measures being considered – areas of opportunity• Envelope• Lighting• HVAC

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2018 NYStretch Development Process

• Advisory Group guidance - Make it rigorous but straightforward and achievable; backstop for best practices in building design/engineering

• Residential, Commercial and Multi-family Working Groups will review technical issues and prepare detailed language

• Iterative energy modeling to predict savings and fine-tune

• NOTE: Separate from Green Code measures other than energy (“Framework” developed in previous cycle)


Stakeholder Input

• Advisory Group Meetings• Commercial, Multifamily and Residential Working Groups (3 calls/review

sessions)• Project team and informal review nationally• Multiple calls/discussions with stakeholders (NYSDOS, NYC Mayor’s Office

and DPD, MA DOER, Efficiency VT)• Public Comment period

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TimetableMILESTONE DATE

Kickoff June 8, 2017

1st round Technical Working Group meetings June/July 2017

NYStretch-Energy Advisory Committee (Meeting 2) PRESENT DRAFT ENERGY ANALYSIS

August 10, 2017

2nd Round of Technical Working Group Meetings September/October 2017

NYStretch-Energy Advisory Committee (Meeting 3) PRESENT FINAL ENERGY ANALYSIS

November 9, 2017

NYStretch-Energy draft December 2018

Legal review January 2018

Public comment February/March 2018

Toolkit updates May 2018

Final NYStretch-Energy May 2018


Overview of Technical Approach

Priscilla Richards, NYSERDA


Kevin Carbonnier, New Buildings Institute

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2018 NYStretch Overview • Code Application

• Prescriptive (commercial), ERI, and modeling compliance• Base codes - 2018 IECC, ASHRAE 90.1-2016

• Measure development• Survey advancing codes (189.1-2017, CA T24-2016, WA state)• Cooperate with Zero Cities and Washington State code development efforts• Examine range compliance options (Appendix g; ERI/HERS scores)

• Measures being considered – areas of opportunity• Envelope - Modeling• Lighting - Renewables • HVAC - Load Shape and Grid Impacts• Water Heating - Resiliency, EVs, Fuels…..


Modeling of NYStretch Savings

• Full modeling of residential and commercial measures• Supported by PNNL for commercial• Supported by Earth Advantage for residential

• Preliminary and final modeling rounds for savings determination

• Across three NY Climate Zones and five common commercial building types and two different sized residential buildings

• (Discusssion of modeling after lunch)

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EUI Targets and NYStretch

• Helps provide comparisons among codes and policy objectives

• Generally aiming for weighted-average energy savings of 20% beyond 90.1-2013 / 2015 IECC

• Targets are computed as weighted-averages of 3 NY Climate Zones

• Can later be correlated to Performance Cost Index Targets framework in ASHRAE 90.1 Appendix g.

• Not currently calculated to be appropriate as outcome-based targets


Energy Targets

• Method• PNNL prototype modeling basis• National costs

• $0.1032 / kWh• $0.9900 / therm

• Site-to-source• 3.07 Electricity• 1.09 Natural Gas

NY new construction weights by Climate Zone

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Energy Targets


Energy Targets

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Energy Targets


Multifamily Opportunities for Consideration


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81%

19%

New York State Multifamily New Construction Housing Forecast

NYC NYS

Multifamily Construction Projections

Source: Dodge McGraw Hill Construction DataStatewide average of 29,000 MF units per year over next 5 years

36%

24%

40%

New York State New Construction Forecast (2017-2021)

Multifamily Single Family Commercial


New York City Multifamily Construction Distribution

• 73% of Construction in Manhattan and Brooklyn

– 2-3 stories: 2%

– 4-20 stories: 60%

– 21 stories and up: 38%

38%

35%

17%

9%

1%Distribution of Construction (2012-2016)

NEW YORK KINGS QUEENSBRONX RICHMOND

Source: Dodge McGraw Hill Construction Data

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One Source of Measures: Multifamily Guide

The Shade House Condos, Houston, TX

M Residences, Nashville,TN

• Improved Windows• Thermal Bridging Limitations• Improved Infiltration & Testing• Equipment Efficiency• Fan Efficiency• HVAC Controls• Efficient Ventilation• Lighting Efficacy• Common Area Lighting Controls• Efficient exterior lighting• Efficient Hot Water Equipment• Hot Water Conservation/Distribution• Appliances

20‐30% Savings

over

IECC‐2015

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• System Selectiono Ground Source Heat Pumpo High Efficiency Heat Pumpo Radiant Heating/Cooling

• Heat Pump Water Heater• Energy Recovery Ventilation• Enhanced Envelope UA

+3‐10% Savings

• Improved Windows• Thermal Bridging Limitations• Improved Infiltration & Testing• Fan Efficiency• Efficient Ventilation• Lighting Efficacy• Common Area Lighting Controls• Efficient Exterior lighting• Hot Water Conservation/Distribution• HVAC System Selection• Heat Pump Water Heater

Top Candidates for NYStretch

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Energy Code’s only Split Building Type

Multifamily Chapter

Twin Canal Village, Virginia Beach, VA

High‐Rise Multifamily Regulation

Ramona Apartments, Portland, OR

Requirements Crafted for:‐ Commercial usage patterns‐ Commercial loads‐ Commercial occupancy densities‐ Commercial hot water use

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Low‐Rise Multifamily Regulation

Ramona Apartments, Portland, OR

Requirements Crafted for:‐ Single Family usage patterns‐ Single Family loads‐ Single Family occupancy densities‐ Single Family hot water use

Twin Canal Village, Virginia Beach, VA

Some NYStretch Options for Multifamily

CA Project, Chicago, IL Faubourg Lafitte, New Orleans, LA

1. Residential Stretch Measures for Low‐rise MF2. Unified Multifamily Measures for all R‐23. Refer Low‐Rise R2 to Commercial Section and

Commercial NYStretchA. Boulder, CO ‐ base code scope change B. Washington (proposed) ‐ by reference

4. Others

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Discussion

• Questions• What worked well/did not work from last round?• Are missing any important opportunities for savings?• Other suggestions for improvement?


Break for Lunch

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Commercial Modeling Methodology

• Bing to present

Recommendations and Review Manual

• Funded by NYSERDA, implemented by Karpman Consulting

• Policy Recommendations report is completed, development of the Review Manual is under way

• Incorporate input of members of ASHRAE Standard 90.1 committee, chair of ASHRAE TC 4.7 (Energy Calculations), chief of PNNL’s Commercial Energy Code Development team, Director of Energy Code Compliance NYC Department of Buildings, technical director of USGBC Energy/HVAC team, and other local and national stakeholders

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Policy Recommendations

• Minimize the number of compliance options to simplify enforcement, making 90.1 Appendix G the only performance path

• Establish qualification requirements for modelers and reviewers• Engage third part reviewers if there are no in‐house staff with the necessary qualifications

• Adopt a detailed, structured submittal review template, aligned with the requirements of other compliance modeling applications common in New York

• Develop and document the review process; incorporate some QC checks into the submittal review template for automation; get input on the QC checks from vendors of the software tools popular in NY

• Provide trainings to the code officials and third party reviewers on the use of the submittal template and review process.


Measures for Consideration• Envelop Measures

• Reduce thermal bridging at balconies/slab edges and window to wall interface

• U values based on ASHRAE 189.1-2014• Advanced framing techniques• Thermal capacity (Passive House)

EEM

Description

Opaque

Insulation

Fenestration

Properties

High‐Rise Apartment

4_moist 1% 4%

5_moist 1% 5%

Large Hotel

4_moist 2% 2%

5_moist 2% 3%

Large Office

4_moist 1% 1%

5_moist 1% 2%

Secondary School

4_moist 1% 1%

5_moist 1% 2%

Stand‐alone Retail

4_moist 3% 0%

5_moist 4% 1%

Preliminary results from PNNL for Zero Cities 20% Standard using ASHRAE 90.1 –

2013 as baselineSource: Morrison Hershfield, Catalogue Thermal Data Sheets

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Measures for ConsiderationEEM

Description

Interior

LPD

High‐Rise Apartment

4_moist 1%

5_moist 1%

Large Hotel

4_moist 2%

5_moist 1%

Large Office

4_moist 2%

5_moist 2%

Secondary School

4_moist 5%

5_moist 5%

Stand‐alone Retail

4_moist 12%

5_moist 10%

• Lighting Measures• Interior and exterior Lighting Power Densities

from ASHRAE 189.1 – 2017• Wider application of controls from Title24

Preliminary results from PNNL for Zero Cities 20% Standard using ASHRAE 90.1 –

2013 as baseline

All Products Listings and Efficacy in LED Lighting Facts database Over Time

Source: US DOE


Measures for Consideration

• HVAC Measures• Wider application of DOAS (WSEC)• Wider application of ERV/HRV• Additional fan power limits• Wider application of vacancy controls• System selection and fluid distribution

Source: PNNL

Climate Total building EUI savings (fan coil with DOAS vs VAV)

4A 6%

5A 8%

6A 6%

HVAC system types

VAV system Fan coil with DOAS

cooling Two-speed DX coil Fan coil with chillerheating hydronic central heating for AHU and hydronic baseboard in

zonesFan coil with boiler

Air distribution

VAV without terminal reheat Constraint fan DOAS

ERV yes yesDCV No No

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Measures for Consideration

• Service Hot Water• Waste heat recovery• Heat pump water heaters

• Electrical Systems• Additional plug load requirements

(energy star rated equipment)

Source: NEEA


Questions

• Did we capture key savings opportunities?

• Are there other sources that you know of?

• Which work groups do you want to participate in?• Commercial• Multifamily• Residential

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Wrap up and Next Steps

Documents

2018 NYStretch- Energy Kickoff Meeting · PDF file2018 NYStretch-Energy Kickoff Meeting ... •Overview of project team, ... •Policy Recommendations report is completed, development