Upload
others
View
4
Download
0
Embed Size (px)
Citation preview
5/6/2016
1
Deep Energy RetrofitsPart 2: Best Practices in
Technologies and Strategies
NBI © 2016
Deep Energy Retrofits
Part 1: Vision, Goals and Process
Part 2: Best Practices in Technologies and Strategies
Part 3: Getting to Zero Net Energy
5/6/2016
2
NBI © 2016
Sean Denniston
Senior Project Manager
New Buildings Institute
Kathy Arthur
Program Lead in the EE Commercial New
Construction Group
National Grid
NBI © 2016
National Grid Service Territory
5/6/2016
3
NBI © 2016
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!
NBI © 2016
Code Triggering NGRID Programs
5/6/2016
4
NBI © 2016
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
5/6/2016
5
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.
5/6/2016
6
NBI © 2016
This image cannot currently be displayed.
New Buildings InstituteProvider # 50111235
Deep Energy Retrofits: Vision, Goals and Process NBIDER02
Sean DennistonMay 5, 2016
NBI © 2016
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.
5/6/2016
7
NBI © 2016
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:
5/6/2016
8
NBI © 2016
Deep Energy Retrofits
Part 1: Vision, Goals and Process
Part 2: Best Practices in Technologies and Strategies
Part 3: Getting to Zero Net Energy
NBI © 2016
What is a Deep Retrofit?
5/6/2016
9
NBI © 2016
What is a Deep Retrofit?
30%
NBI © 2016
DER – “In 5 Easy Steps”
Assess SetGoals
Scope Implement Operate
5/6/2016
10
NBI © 2016
Assess: Benchmarking+
Assess SetGoals
Scope Implement Operate
Context is Key
NBI © 2016
Assess: Investigate
Assess SetGoals
Scope Implement Operate
5/6/2016
11
NBI © 2016
Assess SetGoals
Scope Implement Operate
80% / 25 EUI
NBI © 2016
DER – “In 5 Easy Steps”
Assess SetGoals
Scope Implement Operate
5/6/2016
12
NBI © 2016
DER – “In 5 Easy Steps”
Assess SetGoals
Define the Scope of the Retrofit
Implement Operate
NBI © 2016
Define the Scope of the Retrofit
• (Nearly) Universal Measures
• Going Above Code
• Matching Strengths and Weaknesses
• Compound Opportunities
Assess SetGoals
Scope Implement Operate
5/6/2016
13
NBI © 2016
Define the Scope of the Retrofit
• (Nearly) Universal Measures
• Going Above Code
• Matching Strengths and Weaknesses
• Compound Opportunities
Assess SetGoals
Scope Implement Operate
NBI © 2016
Intervention
Low MediumHigh
5/6/2016
14
NBI © 2016
Intervention
• Maintenance• Retro‐Commissioning• Luminaire upgrade• Upgrade existing controls• Certain HVAC upgrades• Certain infiltration reduction measures (caulking and foaming)
Low MediumHigh
NBI © 2016
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
5/6/2016
15
NBI © 2016
Intervention
• HVAC system switching• Major envelope upgrade
Low MediumHigh
NBI © 2016
What is a Deep Retrofit?
30%
That Usually Means:• Impacting Multiple Systems
•Some Full Equipment Replacement
•Retro-Commissioning
• Infiltration Reduction
•Controls Upgrades
5/6/2016
16
NBI © 2016
(Nearly) Universal Measures
30%
That Usually Means:• Impacting Multiple Systems
•Some Full Equipment Replacement
•Retro-Commissioning
• Infiltration Reduction
•Controls Upgrades
NBI © 2016
(Nearly) Universal Measures
30%
•Likely Coincident with Other Retrofit Measures
•Low(er) Intervention
•Low(er) Cost
•Significant Saving Potential
5/6/2016
17
NBI © 2016
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
NBI © 2016
Infiltration Reduction
Air Barrier Requirement• Prescriptive Checklist
• Blower Door Testing
No Requirement
5/6/2016
18
NBI © 2016
Infiltration Reduction
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”
7
NBI © 2016
Infiltration Reduction
http://www.irinfo.org/05‐01‐2009‐durston/
5/6/2016
19
NBI © 2016
Infiltration Reduction
https://sites.google.com/site/metropolitanenvironmental/causes‐of‐failures‐of‐building‐envelopes
NBI © 2016
Infiltration Reduction
http://www.masonrymagazine.com/air‐barriers‐new‐breed/
5/6/2016
20
NBI © 2016
Infiltration Reduction
Up to 40%
Up to 25%
Gas Electricity
“Investigation of the Impact of Commercial Building Envelope Airtightness on HVAC Energy Use.”
8
NBI © 2016
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
5/6/2016
21
NBI © 2016
Controls Upgrade
http://www.leviton.com/OA_HTML/SectionDisplay.jsp?section=62870&minisite=10251
NBI © 2016
Controls Upgrade
http://www.thomaswraight.com/consulting‐services/building‐controls‐audits/
5/6/2016
22
NBI © 2016
Controls Upgrade
http://www.prweb.com/releases/building‐automation/bas‐graphics/prweb10620568.htm
9
NBI © 2016
Case Study: 1525 Wilson Blvd.
http://newbuildings.org/resource/1525‐wilson‐boulevard‐case‐study/
5/6/2016
23
NBI © 2016
Retro-Commissioning
http://www.b2qassociates.com/services/building‐commissioning‐and‐retro‐commissioning/
10
NBI © 2016
Case Study: 1525 Wilson Blvd.
http://newbuildings.org/resource/1525‐wilson‐boulevard‐case‐study/
5/6/2016
24
NBI © 2016
Case Study: 1525 Wilson Blvd.
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
NBI © 2016
Case Study: 1525 Wilson Blvd.
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
5/6/2016
25
NBI © 2016
Case Study: 1525 Wilson Blvd.
35%
NBI © 2016
Define the Scope of the Retrofit
• (Nearly) Universal Measures
• Going Above Code
• Matching Strengths and Weaknesses
• Compound Opportunities
Assess SetGoals
Scope Implement Operate
5/6/2016
26
NBI © 2016
Go Above Code Whenever Possible
50%50%
New ConstructionLabor Materials
75%
25%
RetrofitsLabor Materials
‐ “The Economics of Historic Preservation” by Don Rypkema
NBI © 2016
Building Lifecycle
Assess SetGoals
Scope Implement Operate
http://www.loopnet.com/Listing/18577617/90‐South‐Swan‐Street‐Albany‐NY/
5/6/2016
27
NBI © 2016
Assess SetGoals
Scope Implement Operate
http://www.loopnet.com/Listing/18577617/90‐South‐Swan‐Street‐Albany‐NY/
Lighting Retrofit – 5‐7 Years
Go Above Code Whenever Possible
NBI © 2016
Assess SetGoals
Scope Implement Operate
http://www.loopnet.com/Listing/18577617/90‐South‐Swan‐Street‐Albany‐NY/
HVAC Replacement – 15‐20 Years
Go Above Code Whenever Possible
5/6/2016
28
NBI © 2016
Assess SetGoals
Scope Implement Operate
http://www.loopnet.com/Listing/18577617/90‐South‐Swan‐Street‐Albany‐NY/
Major Renovation – 30‐50 Years
Go Above Code Whenever Possible
NBI © 2016
Go Above Code Whenever Possible
5/6/2016
29
NBI © 2016
http://evstudio.com/lighting‐power‐density‐in‐the‐new‐denver‐code/
NBI © 2016
Case Studies: LED & Controls
5/6/2016
31
NBI © 2016
Define the Scope of the Retrofit
• (Nearly) Universal Measures
• Going Above Code
• Matching Strengths and Weaknesses
• Compound Opportunities
Assess SetGoals
Scope Implement Operate
NBI © 2016
Matching Strengths & Weaknesses
Assess SetGoals
Scope Implement Operate
5/6/2016
32
NBI © 2016
Weakness
Weakness
Weakness
Weakness
Weakness
Weakness
Weakness
Weakness
Matching Strengths & Weaknesses
NBI © 2016
Matching Strengths & Weaknesses
Executive Office Building‐ Washington DC
Single PaneWindows
No Insulation
5/6/2016
33
NBI © 2016
Matching Strengths & Weaknesses
Executive Office Building‐ Washington DC
Natural Ventilation& Daylighting
Thermal Mass
NBI © 2016
Matching Strengths & Weaknesses
https://www.djc.com/news/co/12083334.html
High Infiltration & Radiant Space Conditioning
5/6/2016
34
NBI © 2016
Matching Strengths & Weaknesses
http://buildingscience.com/documents/digests/bsd‐040‐airtightness‐testing‐in‐large‐buildings
High Infiltration & Radiant Space Conditioning
NBI © 2016
Define the Scope of the Retrofit
• (Nearly) Universal Measures
• Going Above Code
• Matching Strengths and Weaknesses
• Compound Opportunities
Assess SetGoals
Scope Implement Operate
5/6/2016
35
NBI © 2016
Compound Opportunities
http://azamhamdoon.com/the‐most‐important‐marketing‐p‐kill‐two‐birds‐with‐one‐stone
Efficiency Improvements
Other Improvements
One Deep Energy Retrofit
NBI © 2016
Compound Opportunities
Edith Green‐Wendell Wyatt BuildingSummer 2015 HIGH PERFORMING BUILDINGS
5/6/2016
36
NBI © 2016
Edith Green-Wendell Wyatt Building
Summer 2015 HIGH PERFORMING BUILDINGS Cutler Anderson and SERA Architects
NBI © 2016
Edith Green-Wendell Wyatt Building
http://www.architectmagazine.com/design/buildings/edith‐greenwendell‐wyatt‐federal‐building‐designed‐by‐cutler‐anderson‐architects_o
5/6/2016
37
NBI © 2016
Edith Green-Wendell Wyatt Building
http://www.architectmagazine.com/design/buildings/edith‐greenwendell‐wyatt‐federal‐building‐designed‐by‐cutler‐anderson‐architects_o
6
NBI © 2016
DER – “In 5 Easy Steps”
Assess SetGoals
Scope
Implement the Retrofit Measures
Operate
Slide 73
6 emphasize designer role and need for good designers like the audienceSean Denniston, 4/28/2016
5/6/2016
38
NBI © 2016
Matching the Market
Commercial
Real
Estate
C
R
E
Characteristics
• Generally Tenant-Occupied
• Split Incentives
• Higher Tenant Turnover
• Investment funding
Assess SetGoals
Scope Implement Operate
NBI © 2016
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
Scope Implement Operate
5/6/2016
39
NBI © 2016
Case Study: Vance Building
Project Details
• Cooling system upgrades timed with lease expirations
http://newbuildings.org/resource/joseph‐vance‐building‐case‐study/
NBI © 2016
Matching the Market
Municipal
University
School
Hospital
M
U
S
H
Characteristics
• Generally Owner-Occupied
• Institutional Funding
• Institutional Decision Making
Assess SetGoals
Scope Implement Operate
5/6/2016
40
NBI © 2016
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
Scope Implement Operate
NBI © 2016
Case Study: Suffolk Y Jewish CC
Project Details
• Building Automation System
• On-Demand SHW
• Boiler Upgrades
5/6/2016
41
NBI © 2016
Possible DER Pitfalls
Photo: Simpson Gumpertz & Heger.
NBI © 2016
Possible DER Pitfalls
www.buidingscience.com
5/6/2016
42
NBI © 2016
Possible DER Pitfalls
https://www.askmehelpdesk.com/interior‐home‐improvement/garage‐insulation‐mold‐prevention‐366267.html
NBI © 2016
Kathy Arthur
Learn more:
https://www.ngrid.com/newconstruction
844-280-4325
Q & A
Sean Denniston
5/6/2016
43
NBI © 2016
Part 1: Vision, Goals and Process
Part 2: Best Practices in Technologies and Strategies
Part 3: Getting to Zero Net Energy
Coming Up Next
This presentation is protected by US and International Copyright laws. Reproduction, distribution, display and use of the presentation without written
permission of the speaker is prohibited.
© New Buildings Institute 2016
Copyright Materials