FMA Summits October 20-22, 2010

Arlington, Texas

US Army Garrison, Adelphi Laboratory Center, MDEnergy Savings Performance Contract

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Overview

Background Energy Conservation Measures (ECMs) ImplementedProject FinancialsPerformance PeriodProject Benefits

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Adelphi Laboratory Center (ALC)

Includes 1.1 million square feet of gross floor area in 36 buildings over 207 acres Facilities:

research/laboratory facilities, storage, utility plants, maintenance yards, fabrication shops, administrative complexes including occupational health clinic, wellness

center, and cafeteria

Manage and operate the facilities of ALC in an equitable, effective manner to support on-going research, enable the well-being of Soldiers and civilians, improve infrastructure, and preserve the environment.

Mission

ALC Campus

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Adelphi Laboratory Center (ALC) Project Goals

Reduce energy use and operating cost to meet and exceed Energy Laws and Executive Orders

Improve the Garrison’s energy infrastructure

Enhance energy security for critical operations

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AMERESCO

Leading Provider of energy efficiency solutions with over $5.0 billion in energy savings & renewable power products.One-Stop, Comprehensive Service Provider.Independent company with no affiliation to any equipment manufacturer, utility or fuel company. Strong National and Local Presence with 54 offices located in United States (29 states), Canada (4 provinces), and Europe (Italy, Spain) with over 600 employees. (over 170 registered professional engineers, PEs and certified energy managers, CEMs)

Executive Officers have an aggregate of over 150 years of experience in the energy efficiency field.

Note: Ameresco has currently under construction the industry’s largest ESPC / Renewable project. It is a $798 million biomass project for Dept. of Energy’s Savannah River facility, in South Carolina.

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Definition of Energy SavingsPerformance Contracting (ESPC)

ESPC is a no-upfront-cost contractingmethod. The contractor incurs the cost ofimplementing energy conservationmeasures (ECMs) and is paid from theenergy, water, and operations savingsresulting from these ECMs.

U.S. ARMY CORPS Huntsville, ESPC team provides Contracting and customer support for project.

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ECM PROJECT DEVELOPMENT

Traditional Technologies

Cutting Edge Technologies

Bleeding Edge Technologies

ECM Content

ALC challenged Ameresco to develop expansive project using combination of traditional and cutting-edge technologies,

all within financial constraints of project

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ECM Project Development (continued)

Partnership (Army & Ameresco) identified over 45 ECMs Phase I, Site Survey analyzed 37 ECMs30 ECMs approved for Phase II Feasibility Study Ameresco proposed 14 ECMs from 30 ECMs analyzed12 ECMs were approved by Army for implementation

Note: Includes full O&M for project’s major equipment

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Energy Conservation Measures (ECM) Implemented

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High Efficiency Lighting with Controls

LED outdoors for parking lots, roadways, building wall packs, display cases, and elevatorsOccupancy controls interlocked to HVAC controls with VAV set-backScotopic T-5 high-bay lightingT-8, 32 watt to extended-life super T-8, 25 watt

T8 Lamps and Electronic Ballasts

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Retro-fit 50 fume hoods with bi-stable vortex containment technology for compliance with ASHRAE 110 containment test.

Significant HVAC saving achieved through reduced exhaust and associated conditioned air.

High Performance Fume Hoods Retrofit

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Site-wide conversion from legacy system to open protocol DDC systemOpen protocol system creating options for future expansion and O&MTotal point 5844 (4,177 new and 1,667 re-programmed)Chiller plant optimizationReduce simultaneous heating and cooling Sequence optimization for AHUs, VAVs, heat exchangers and humidifiersNew 2-way pressure-independent control valves on hot and chilled waterEquipment schedulingOutside air set-back based on occupancyNew control hardware (control panels, VAV boxes, sensors and wiring, etc)Air-side rebalance for AHU and VAV supply and return air

DDC Controls, Rebalance, Recommission, and Improve Delta T

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Replace control system on 3 boilers to improve combustion efficiency.Replace existing burners on 3 boilers with high-efficiency burner.

High efficient, variable speed, fully modulating burnersOxygen-trim control for maximum efficiency

Install new boiler refractory, baffles and insulation.

Upgrade Existing Boiler Controls, O2 Trim and Repairs

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Optimize Compressed Air System

Remove existing abandoned Cube compressor.

Install new high-efficiency compressor with new dryer and new zero loss condensate drains.

New compressor is lead compressor in parallel with three (3) existing back-up compressors for mission critical operations.

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New Combined Heat and Power Plant (CHP)

Two new 1.1 MW natural gas-fired reciprocating engine generatorsTwo new heat exchangers and recovery boilers to recover waste heat for HTHW loopTwo (2), new lean-burn, 1.1 MW natural gas engines for site heating and power generationHigh efficiency with both exhaust and jacket heat recovery equipmentBlack start capability for critical loads during utility outagesMDE permit; Noise analysis and mitigationStand alone controls for heat recovery optimization with interface to DDCHTHW temperature drop from 400 to 250 degrees FahrenheitInclude selective catalytic reduction (SCR) on engines to control emissions.

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Optimize Central Chilled Water Plant

1,000-ton Variable Speed Screw Chiller with plate and frame heat exchanger for water side economizer, and 6,000 ton central chiller plant optimization.

The new 1,000 ton chiller utilizes Carrier’s latest triple-screw technology with industry-best efficiency in this size.

Install VFDs on primary pumps of the 2 most frequently used chillers.

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Water-Side Economizer Cooling

Install new heat exchanger to use free cold condenser water during winter instead of running a chiller.

New heat exchanger is connected to new high efficiency 1,000 ton triple screw chiller.

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Optimize Chilled Water Plant

Retrofit one chiller with state of the art high efficiency TurboCor compressor. (Note: Instead of retrofit, a new 100-ton Variable Speed Turbocor frictionless bearing chiller was installed with industry-best efficiency in this size.Condenser water reset – using cooler condenser water when available increases chiller efficiency.Re-enable air-side economizer on AHUs.

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Re-Insulate High Temperature Hot Water Distribution Piping

Provide insulation jackets on valves and fittings on the HTHW piping system.

Insulating blankets and traditional insulation.

Provide fiberglass insulation for damaged insulated areas in theHTHW piping system.

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New High Efficiency Transformers

Strategy 1 - Replace 19 Dry transformers in multiple buildings Replace 91% efficient with 98% efficient

Strategy 2 – Re-feed double-ended 208V substations

Load aggregation for lightly loaded transformers

Note: Increase efficiency equates to operating savings and less heat dissipated. Older units were hot to the touch; new units are not.

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HVAC Air Handler / Clean Room, Upgrades

Existing Air-Handlers Upgrades:Install new wrap-around heat pipe coils around existing cooling coil in 9 AHUs

Piping filled with refrigerant transfers heat between inlet and outlet side of the cooling coilProvides free pre-cooling and free reheat by heat transfer through the heat pipe coils

13 customized efficiency upgrades to existing air handlers (air splitters)Clean Room Modifications (related to CHP ECM):Use of high-temperature hot water (HTHW) to re-activate desiccant de-humidification wheel in lieu of electric heat; addition of electric coil to replace removed HTHW coil due to lower loop temperatureCool fog humidification for clean room (Mee-Fog)

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PROJECT FINANCIALS

13 YearsContract Term

$21,175,516Implementation Cost

$ 43,526,533Contract Term Energy Savings

$ 2,859,942First Year Energy Savings

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Energy Goal Achieved Now

288.49284.56 277.42

275.65261.82

256.57238.88

191.34

288.49 288.49 288.49279.83

271.18262.52

253.87245.21

236.56227.91

219.25210.60

201.94

Con

sum

ptio

n (M

BTU

/KS

F)

Fiscal Year

Adelphi Laboratory Center

Actual Consumption

2015 Goal (3% / Yr)

(Projected)

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PERFORMANCE PERIOD

Includes full O&M for project’s major equipment – Cogeneration equipment

– Natural gas engines– Heat recovery equipment– Electrical switchgear

– Carrier 1000 ton triple screw chiller– Plate and frame heat exchanger

– Turbocor chillerPreventive maintenance only on new boiler burnersAnnual Measurement and & Verification Reports for term of contract

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Annual M&V Report Sample Summary Chart

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Benefits of ESPC Project for: U.S. Army Garrison, Adelphi Laboratory Center

Over 40% operating cost savings expectedCompliance with Federal energy laws & Army energy policiesEnhanced energy security for critical loads through use of CHP plant during power outagesModernize energy infrastructure now with minimal capital outlayImproved occupant comfort through upgraded DDC systemEnhanced operation/maintenance for major energy equipmentEscrow fund of 100,000 per year for contract term for upgradesEnvironment benefits through significant improvements in energy efficiency

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Thank You