Download - Deep Energy Retrofits - Home - New Buildings Institute · 1.Understand the relationship between deep energy retrofits and code requirements 2. Understand opportunities to use deep

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Deep Energy RetrofitsPart 2: Best Practices in

Technologies and Strategies

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Deep Energy Retrofits

Part 1: Vision, Goals and Process

Part 2: Best Practices in Technologies and Strategies

Part 3: Getting to Zero Net Energy

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Sean Denniston

Senior Project Manager

New Buildings Institute

[email protected]

Kathy Arthur

Program Lead in the EE Commercial New

Construction Group

National Grid

[email protected]

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National Grid Service Territory

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Memorial Day SafetyAccording to the Wall Street Journal, Memorial Day is the second most dangerous holiday of the year, with Independence Day being the deadliest.

This Memorial Day, keep yourself and your family safe.

– Buckle up when on the road.

– Make sure there is a designated driver.

– Obey speed limits and traffic laws.

– Make sure tires are properly inflated.

– Use caution.

• There are 13.1% more traffic deaths, on average, that weekend than a typical non‐holiday weekend.

• Memorial Day has 32% more fatalities than the preceding three days, (according to a study on holiday fatalities by Arnold and Cerrelli). The reason is likely the increased travel during that day.

• The 13 percent of drivers and passengers in cars and light trucks who do not wear belts accounted for 44.7 percent of fatalities in 2014.

Safety Moment: Holiday Driving!

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Code Triggering NGRID Programs

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Owner will get the full benefit of savings from existing conditions

NGRID will offer incentives from base code, IECC‐2012

Owner will get benefit of improvements over code

Reduced ROI for upgrades

Owner Benefit of Deep Retrofit

redefining what’s possible in the built environment

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Vision + Mission

We believe in a built environment that makes a positive contribution to a sustainable society through dramatic improvements in energy performance.

NBI takes leading‐edge practices and technology applications for high performance buildings and translates them into innovative and practical solutions for the energy efficiency and commercial building industries.

East Boston Public Library | East Boston, MA

virtuous cycle

We are an engine of

innovation for the energy

efficiency industry. We

drive research, uncover

solutions, and advance

industry practices and

policies that deliver

positive change in the

built environment.

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New Buildings InstituteProvider # 50111235

Deep Energy Retrofits: Vision, Goals and Process NBIDER02

Sean DennistonMay 5, 2016

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Credit(s) earned on completion of this course will be reported to AIA CES for AIA members. Certificates of Completion for both AIA members and non‐AIA members are available upon request.

This course is registered with AIA CESfor continuing professional education. As such, it does not include content that may be deemed or construed to be an approval or endorsement by the AIA of any material of construction or any method or manner ofhandling, using, distributing, or dealing in any material or product._______________________________________

Questions related to specific materials, methods, and services will be addressed at the conclusion of this presentation.

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Course Description: A Deep Energy Retrofit is a retrofit project that achieves at least 30% energy savings in a building. Success with this kind of project requires more than “widget‐based” retrofits with a focus on one‐item upgrades to buildings. This second webinar of a three‐part series will focus on Technologies and Strategies in Deep Energy Retrofits. The webinar will address the common elements of nearly all deep energy retrofits, how to choose an approach to match the strengths and weaknesses of the building and common deep energy retrofit technologies and strategies.

CourseDescription

NBI © 2016

LearningObjectives

1. Understand the relationship between deep energy retrofits and code requirements

2. Understand opportunities to use deep energy retrofits to make non‐energy improvements

to buildings

3. Be able to align deep retrofit strategies with building strengths & weaknesses

4. Be able to identify pitfalls to pursuing deep energy retrofit technologies and strategies

At the end of the this course, participants will be able to:

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Deep Energy Retrofits




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What is a Deep Retrofit?

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30%

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DER – “In 5 Easy Steps”

Assess SetGoals

Scope Implement Operate

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Assess: Benchmarking+

Assess SetGoals


Context is Key

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Assess: Investigate

Assess SetGoals


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Assess SetGoals


80% / 25 EUI

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Assess SetGoals


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Assess SetGoals

Define the Scope of the Retrofit

Implement Operate

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• (Nearly) Universal Measures

• Going Above Code

• Matching Strengths and Weaknesses

• Compound Opportunities

Assess SetGoals


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Assess SetGoals


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Intervention

Low MediumHigh

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Intervention

• Maintenance• Retro‐Commissioning• Luminaire upgrade• Upgrade existing controls• Certain HVAC upgrades• Certain infiltration reduction measures (caulking and foaming)

Low MediumHigh

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Intervention

• Lighting system replacement• HVAC system replacement (in‐kind, higher efficiency)

• Certain infiltration reduction (air barrier continuity retrofits)

• Some envelope upgrades (like some roof insulation retrofits for instance)

• Addition of renewables

Low MediumHigh

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Intervention

• HVAC system switching• Major envelope upgrade

Low MediumHigh

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30%

That Usually Means:• Impacting Multiple Systems

•Some Full Equipment Replacement

•Retro-Commissioning

• Infiltration Reduction

•Controls Upgrades

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(Nearly) Universal Measures

30%

That Usually Means:• Impacting Multiple Systems

•Some Full Equipment Replacement

•Retro-Commissioning

• Infiltration Reduction

•Controls Upgrades

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(Nearly) Universal Measures

30%

•Likely Coincident with Other Retrofit Measures

•Low(er) Intervention

•Low(er) Cost

•Significant Saving Potential

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Coincident with Other Measures

http://bloomroofing.com/save‐on‐energy‐costs‐with‐blooms‐commercial‐roofing‐insulation/

http://www.coacair.com/work/gallery‐sacramento.php

http://www.buyriteelectric.com/ice‐tray‐rectangular‐indirect‐architectural‐suspended‐linear‐t5‐ho‐fluorescent‐office‐lighting‐fixture.html

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Infiltration Reduction

Air Barrier Requirement• Prescriptive Checklist

• Blower Door Testing

No Requirement

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Air Barrier Requirement• Prescriptive Checklist – 1.0 CFM/sf

• Blower Door Testing – 0.4 CFM/sf

No Requirement• Average Performance – 1.8 CFM/sf

“Achieving the 30% Goal: Energy and Cost Savings Analysis of ASHRAE Standard 90.1‐2010”

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http://www.irinfo.org/05‐01‐2009‐durston/

7 Passivhaus reference for contextSean Denniston, 4/28/2016

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https://sites.google.com/site/metropolitanenvironmental/causes‐of‐failures‐of‐building‐envelopes

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http://www.masonrymagazine.com/air‐barriers‐new‐breed/

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Up to 40%

Up to 25%

Gas Electricity

“Investigation of the Impact of Commercial Building Envelope Airtightness on HVAC Energy Use.”

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Controls Upgrade

https://upload.wikimedia.org/wikipedia/commons/4/49/OfficeThermostat.jpg

http://www.honeywellstore.com/store/products/5‐2‐day‐programmable‐thermostat‐honeywell‐rth2300b.htm

http://www.achrnews.com/articles/130817‐cool‐thermostats‐hot‐controls‐shape‐market

8 Best practicesSean Denniston, 4/28/2016

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Controls Upgrade

http://www.leviton.com/OA_HTML/SectionDisplay.jsp?section=62870&minisite=10251

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Controls Upgrade

http://www.thomaswraight.com/consulting‐services/building‐controls‐audits/

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Controls Upgrade

http://www.prweb.com/releases/building‐automation/bas‐graphics/prweb10620568.htm

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Case Study: 1525 Wilson Blvd.

http://newbuildings.org/resource/1525‐wilson‐boulevard‐case‐study/

9 Caution about oversold

case study

sources for infoSean Denniston, 4/28/2016

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Retro-Commissioning

http://www.b2qassociates.com/services/building‐commissioning‐and‐retro‐commissioning/

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http://newbuildings.org/resource/1525‐wilson‐boulevard‐case‐study/

10 Make sure everything worksSean Denniston, 4/28/2016

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Building Details• Rosslyn, Virginia

• Office with Ground Floor Retail

• 12 stories, 313,337 sf

• All-electric building with VAV

• HVAC was 50-60% of total loads

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Project Details: HVAC• RCx whole system

• Replace 90% of compressors and sensors

• Upgrade to Demand Control Ventilation

• Replace control system with non-proprietary back-end

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35%

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Assess SetGoals


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Go Above Code Whenever Possible

50%50%

New ConstructionLabor Materials

75%

25%

RetrofitsLabor Materials

‐ “The Economics of Historic Preservation” by Don Rypkema

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Building Lifecycle

Assess SetGoals


http://www.loopnet.com/Listing/18577617/90‐South‐Swan‐Street‐Albany‐NY/

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Assess SetGoals



Lighting Retrofit – 5‐7 Years


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Assess SetGoals



HVAC Replacement – 15‐20 Years


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Assess SetGoals



Major Renovation – 30‐50 Years


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http://evstudio.com/lighting‐power‐density‐in‐the‐new‐denver‐code/

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Case Studies: LED & Controls

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Weakness

Weakness

Weakness

Weakness

Weakness

Weakness

Weakness

Weakness


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Executive Office Building‐ Washington DC

Single PaneWindows

No Insulation

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Executive Office Building‐ Washington DC

Natural Ventilation& Daylighting

Thermal Mass

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https://www.djc.com/news/co/12083334.html

High Infiltration & Radiant Space Conditioning

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http://buildingscience.com/documents/digests/bsd‐040‐airtightness‐testing‐in‐large‐buildings

High Infiltration & Radiant Space Conditioning

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Assess SetGoals


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Compound Opportunities

http://azamhamdoon.com/the‐most‐important‐marketing‐p‐kill‐two‐birds‐with‐one‐stone

Efficiency Improvements

Other Improvements

One Deep Energy Retrofit

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Compound Opportunities

Edith Green‐Wendell Wyatt BuildingSummer 2015 HIGH PERFORMING BUILDINGS

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Edith Green-Wendell Wyatt Building

Summer 2015 HIGH PERFORMING BUILDINGS Cutler Anderson and SERA Architects

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http://www.architectmagazine.com/design/buildings/edith‐greenwendell‐wyatt‐federal‐building‐designed‐by‐cutler‐anderson‐architects_o

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http://www.architectmagazine.com/design/buildings/edith‐greenwendell‐wyatt‐federal‐building‐designed‐by‐cutler‐anderson‐architects_o

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Assess SetGoals

Scope

Implement the Retrofit Measures

Operate

6 emphasize designer role and need for good designers like the audienceSean Denniston, 4/28/2016

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Matching the Market

Commercial

Real

Estate

C

R

E

Characteristics

• Generally Tenant-Occupied

• Split Incentives

• Higher Tenant Turnover

• Investment funding

Assess SetGoals


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Matching the Market

Commercial

Real

Estate

C

R

E

Considerations

• More building life-cycle opportunities

• Staged projects are more likely

• Market factors are more likely to dominate

Assess SetGoals


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Case Study: Vance Building

Project Details

• Cooling system upgrades timed with lease expirations

http://newbuildings.org/resource/joseph‐vance‐building‐case‐study/

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Matching the Market

Municipal

University

School

Hospital

M

U

S

H

Characteristics

• Generally Owner-Occupied

• Institutional Funding

• Institutional Decision Making

Assess SetGoals


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Matching the Market

Municipal

University

School

Hospital

M

U

S

H

Considerations

• “One-shot” projects are more likely

• Operating expenses are more likely to motivate

• More likely to have sustainability mandates

Assess SetGoals


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Case Study: Suffolk Y Jewish CC

Project Details

• Building Automation System

• On-Demand SHW

• Boiler Upgrades

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https://www.askmehelpdesk.com/interior‐home‐improvement/garage‐insulation‐mold‐prevention‐366267.html

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Kathy Arthur

[email protected]

Learn more:

https://www.ngrid.com/newconstruction

844-280-4325

Q & A

Sean Denniston

[email protected]

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Download - Deep Energy Retrofits - Home - New Buildings Institute · 1.Understand the relationship between deep energy retrofits and code requirements 2. Understand opportunities to use deep

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