AEE New England Energy Awards 2013 · AHU 1 168 91 100% 53% AHU 2 168 91 100% 55% S-2 168 112 100%...

AEE New England Energy Awards

2013

!


Honorable Mention Melrose Wakefield Hospital

!AERCO steam fired hot water instantaneous heaters

!

Melrose Wakefield HospitalAERCO steam fired hot water instantaneous heaters

Results • Savings = 265,700 Btu/Hr = $23,275 / yr !

Key Players • Justin Ferbert Melrose Wakefield Hospital, Director of Engineering • Al Bishop- George T Wilkinson • Dec Tam • Burnell Controls • Brzek Insulation


Honorable Mention Cumberland Farms-Westborough, MA

!Central Refrigeration System •Central ammonia system •Improved dock and fork truck doors •Increased building insulation •LED lighting in freezers and parking lot •Subfloor heating through refrigeration hot gas discharge !!

!

Cumberland FarmsCentral Refrigeration System

Results Savings =1,164,881 kWh = $139,786 !Key Players • Michael Tierney Manager- Cumberland Farms • American Refrigeration Company, Inc. • Design-Build Contractor—CMC Design-Build • National Grid • TA Consultants Demand Management Institute


Honorable Mention

7

AEE New England Energy AwardsEMC & National Grid Partnership

• Approached EMC in 2011, EMC interested to pursue • Several discovery meetings:

o Financial criteria, Mission statement, Energy savings: focus on ‘electric’ savings

o GHG Emission/sustainability goals, O&M, employee satisfaction, IAQ, etc • Non binding Memorandum of Understanding (MoU) signed in October 2011 (2

years 2012-2013) • Included buildings in Franklin, Milford and Southborough campus • Bundling of buildings at portfolio level • Formed operational and strategic program teams- EMC, National Grid, B2Q, JCI • New MoU extension signed 2014-2015

88

2012 & 2013 Results Goal – 4,000,000 kWh Actual – 4,663,758 kWh

99

2012 & 2013 Results• Win-Win for both EMC and National Grid • Energy Savings = 4,663,758 kWh/year

o117% of 2012-2013 two year goal • EMC’s payback reduced to 2.2 years • 11 implemented projects in 5 facilities • Investigated cutting edge technologies • Increased implementation- project bundling • Intangible benefits- aligns with EMC’s triple play,

increased visibility, improved collaboration


Best Public Facilities Energy Project

!• Michael Donaghy MBTA, Manager of Energy Efficiency !• Rich Unda Quincy Bus Operations Supervisor !• James Flynn Manager of Mechanical Maintenance !• Michael Pace Horizon Energy Services !• David Perron Horizon Energy Services !• Frank Duggan National Grid

Key Players

The Opportunity• Need a project that achieves a simple payback under 5 years (i.e.

20% ROI) or better. !

• Project must be completed with minimal impact to normal business operations. !

• Project must maintain or improve safety and service delivery for MBTA employees and customers. !

• Project should provide greatest amount of sustainable benefit at the lowest cost of immediate and legacy ownership.

Analysis• Horizon Energy Services was brought in the spring of

2013 to analyze feasibility to convert from oil to natural gas and to determine additional energy efficiency opportunities

• Spent numerous days and weeks reviewing 15 minute interval data, conducting a comprehensive energy analysis and speaking with MBTA Staff on building operations

Project Summary

!• Project : ~$270,000 • Incentive from National Grid : ~ $32,000 • Power Consumption reduced by

approximately ~65,000 kWh and 11,000 Therms

• Payback : 1.8 years


Best Compressed Air Energy Project

Key Players• Lee Bianchetto, PE ( project manager ) Facilities Engineer; Analog Devices, Inc. (ADI) • Jeremy Duby Siemens Industry • Jeff Wright Systems Engineer; Compressor Energy Services LLC (CES) • Ron Whelan Sales Manager – Oil Free and Key Accounts Atlas Copco Compressors LLC

The Opportunity• Semiconductor Man’f. Facility operates 24/7/365 requires

large amounts of Compressed Dry Air (CDA) at 100 psi & -100F dew point.

!• Peak air demands exceeding capacity of primary air

compressors thus requiring operation of redundant backup air compressors (total of 7 air compressors). !

• Original design utilizes several satellite CDA systems each with its own desiccant dryer striving to achieve this very low dew point.

Analysis

• Compressed Air Flow Assessment Study by CES using 17 flow meters & power logging of 4 separate CDA systems.

!• Goals:

1) Quantify requirements for production areas. 2) Find & fix sources of potential waste. 3) Determine most efficient equipment for future

growth.

FindingsSources -

1)1250 CFM produced by on-site gaseous Nitrogen & CDA plant

2) 560 CFM produced by oil free compressor & heatless desiccant dryer

3) 160 CFM produced by oil free compressor & heated desiccant dryer

Average air requirement of 1970 cfm produced by three air compressors & dryers

Redundancy: Two - 1100 CFM oil free compressors with heatless desiccant dryers and one - 160 CFM oil free compressor

Findings!

Use Points – 1) 130 leaks identified & fixed. 2) Production requirements created peak demands

of ~2200 cfm; exceeding primary sources. 3) Planned production expansions in 2013 would

require an additional 50-100 cfm of CDA 4) Additional requirement of 150 cfm of gaseous

Nitrogen would require reducing the CDA output of the on-site N-Plant.

Solution

• Install nominal 1700 CFM oil-free Air Compressor with Variable Speed Drive (VSD) and an integral Heat-of-Compression MD Dryer followed by heated Desiccant Trim dryer

Project Summary

• Turnkey Project : $390,000 • Incentive from Reading Municipal Light

Department: $50,000 • Power Consumption reduced by

approximately 525,000 kWh or ~$50,000 • Payback : 6.8 years


Best Refrigeration Energy Project !

Jasper Wyman & Son/Wyman’s of Maine

• Expanding family-owned company, growing and processing an estimated 1.2 million pounds of blueberries a day, all of which needs to be kept frozen at -20 degrees.

• Invested $1.4 million to build one of the most advanced and sophisticated refrigeration systems in the region.

• The project resulted in valuable operations improvements and an annual savings of $100,000.

• Through its Large Customer Program, Efficiency Maine shared$260,000 of this project cost.

Jasper Wyman & Son Best Refrigeration Project

Savings Summary

EFFICIENCY MEASURE PROJECTED $ SAVINGS

Evaporator Fan Cycling $10,076

Compressor Load Savings with Reduced Evaporator Defrosts $2,996

Compressor Efficiencies and Lower Operating Horsepower $32,248

Condenser Fan Motor VFD’s $4,586

Air Curtain Doors $100,000

TOTAL PROJECTED ANNUAL SAVINGS $149,906

EFFICIENCY MEASURE PROJECTED KwH SAVINGS

Evaporator Fan Cycling 77,511 kWh

Compressor Load Savings with Reduced Evaporator Defrosts 23,046 kWh

Compressor Efficiencies and Lower Operating Horsepower 248,062 kWh

Condenser Fan Motor VFD’s 35,283 kWh

Air Curtain Doors 784,729 kWh

TOTAL PROJECTED ANNUAL SAVINGS 1,168,631 kWh


P&G Gillette WSHQ South Boston Site Best Sustainability Program

• P&G Gillette South Boston is a multi functional site covering over 43 acres.

• Aggressive short and long term sustainability reduction goals

• Have completed over 66 water and energy reduction projects over the last four years.

• Are saving an estimated 8 million gallons of water and 20 million kwh annually.

• Custom energy reduction partnership with NSTAR, partners with local organizations and vendors as well.

P&G Gillette Best Sustainability Program

Conservation of Resources Energy Reduction HighlightsProcess Water Pumping • Installed VFDs & Controls • Savings ~1.2 MM kwh/yr + NSTAR incentive

Chiller Optimization Project • Partnered with Siemens • Installed VFDs on newer chiller plant, moved load from older plant onto more efficient plant • Will Install additional efficiency Siemens controls • Savings: ~1.7 MM kwh/yr + NSTAR incentive

Continuous Commissioning • Partnered with ENERNOC • Continuously monitor our HVAC system to identify savings opportunities • Savings Found: >500,000 kwh/yr + NSTAR incentive

Production Equipment • Partnered with Compressor Energy Services • Identified design improvement opportunity • Savings ~750,000 kwh/yr + NSTAR incentive

Energy Saved Could Power

~370 homes/yr


!Most Innovative Energy Project !Meditech (Canton)

Meditech Aerial Photo

Original Chillers

New Chillers


Performance Contracting Award

• Regional Medical Center with 5 Centers of Excellence and 295 licensed beds.

• Annual Energy Utility Spend of $2.2 Million • Siemens selected as the design/build ESCO executing

multifaceted PC project. • Multi-phase implementation spanning over four years and

into the present. • Savings has reached over $675,000 annually, beating the

guaranteed savings estimates by more than 10%. • Rebates of $450,000 were 10x expectations

Concord HospitalBest Performance Contracting Project

Facility Improvement MeasuresRealized Energy and Cost Savings vs. Guaranteed Cost Savings,

Performance Year 1

Year 1 Guaranteed Cost Savings = $612,134 Year 1 Realized Cost Savings = $676,704

Excess in Savings = $64,571

Facility Improvement Measure

Electric Energy Saved

(kWh/yr)

Electric Demand Savings (kW/yr)

Natural Gas Saved

(Therms/yr)

Fuel Oil Savings (Gal/yr)

Annual Realized

Cost Savings

Annual Guaranteed

Cost Savings

Excess/Shortfall in Savings ($)

Lighting & Occupancy Sensors 1,821,383 3,540 (5,194) (755) $236,709 $233,200 $3,509

EMS Optimization (Scheduling) 287,631 13,574 4,630 $59,725 $41,555 $18,170

EMS Optimization (Static & Temp Resets) 946,989 38,507 9,559 $174,967 $161,335 $13,632

Variable Frequency Drives 78,473 $9,313 $21,507 ($12,194)

Chiller Plant Optimization (Demand Flow) 988,421 $117,305 $75,851 $41,454

Building Envelope Improvements 36,723 9,957 2,259 $20,084 $20,084 $0

Air Handler (AHU 6&7) Recommissioning 148,593 25,208 6,258 $58,602 $58,602 $0

Total 4,308,212 3,540 82,052 21,950 $676,704 $612,134 $64,571

Highlights!

Unit

Pre-Retrofit Hrs/Wk

Post-Retrofit Hrs/Wk

Pre-Retrofit Speed

Post-Retrofit Speed

(March 2014)

AC-7 168 85 AC-8 168 85 AC-10 168 85 AHU 1 168 91 100% 53%AHU 2 168 91 100% 55%S-2 168 112 100% 49%

• Scheduling – Reduced operating hours and fan speeds by almost half

Baseline vs. Actual Electric Consumption El

ectr

ic C

onsu

mpt

ion

(kW

h)

00

200,000

400,000

600,000

800,000

Months

Baseline kWh with Actual HoursActual Post-Retrofit kWhSavings

•Demand Flow reduced the Chiller Plant electric consumption by 988,421 kWh in year 1

Total MMBTU/month

0

4500

9000

13500

18000

Janu

ary

Febr

uary

March

April May

June Ju

ly

Augu

st

Sept

embe

r

Octob

er

Novem

ber

Dece

mber

MMBTU 2009MMBTU 2010MMBTU 2011MMBTU 2012MMBTU 2013

5 Year Total MMBTUMMBTU

100000

105000

110000

115000

120000

2009 2010 2011 2012 2013

Square Footage of Concord Hospital

620000

640000

660000

680000

700000

1 2 3 4 5 62009 2010 2011 2012 2013 2014

2009: 633,962 5N & 6N patient units closed 2010: 633,962 5N & 6N patient units closed 2011: 633,962 2012: 656,497 (ADDS Loading dock, Lab Infill, DSC) 2013: 655,333 (Subtracts demo of old Central Plant #2)

5 Year Annual KWh Usage for CH

16000000

16000001

16000002

16000003

16000004

2010 2011 2012 20132009


!And now, for our feature

presentation…..

AEE New England Energy Awards 2013 · AHU 1 168 91 100% 53% AHU 2 168 91 100% 55% S-2 168 112 100%...

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Transcript of AEE New England Energy Awards 2013 · AHU 1 168 91 100% 53% AHU 2 168 91 100% 55% S-2 168 112 100%...