Franklin County Technical SchoolFranklin County Technical School

Performance Contract ProjectPerformance Contract Project

Performance Contracting Performance Contracting OverviewOverview

innovative method to purchase energy innovative method to purchase energy efficiency improvements in buildingsefficiency improvements in buildings

(MGL Ch 25A Sec 11i)(MGL Ch 25A Sec 11i)

single procurement is used to purchase a single procurement is used to purchase a complete package of servicescomplete package of services

financing of the entire project so there are no financing of the entire project so there are no “up front” costs“up front” costs

Projects are paid for from utility savings, Projects are paid for from utility savings, utility rebates, savings in cost of utility rebates, savings in cost of maintenance for existing “tired” maintenance for existing “tired” mechanical systemsmechanical systems

Savings are guaranteed by ESCO (Energy Savings are guaranteed by ESCO (Energy Service Company)Service Company)

Benefits of Performance ContractingBenefits of Performance Contracting Project completion with little or no Project completion with little or no

“immediate” funding“immediate” funding Streamlines the procurement processStreamlines the procurement process Provides continuityProvides continuity Projects are “commissioned”Projects are “commissioned” Long-term partnership with Energy Long-term partnership with Energy

Service Company (ESCO)Service Company (ESCO) High quality equipment compared to low High quality equipment compared to low

bid processbid process

The ESCo is the single source provider

Municipality

ESCo

Develop Design Construct Maintain Finance

40%

20%

0%

60%

80%

100%

B u

d g

e t Savings

Investment

Utilities

Before Contract

During Contract

After Contract

Performance Contract 101 How it works:

• Built in 1975

•151,000 Square Feet

•Single Story, Brick Faced

•525 Students

•100 Staff

Baseline CostUsage $

Electrica l $0 .171 B lended 1,787,665 kWh $305,691

#2 O il $3 .75 G als 72,404 G als $271,514Propane $1.93 G als 6,190 G als $11,946

Water $1.75 kG als 4,310 kG als $7,527Sew er** $5 .30 kG als 1,416 kG als $7,505

** Sew er C ost is not applied to the irrigation system $604,183

Utility UnitsUtility Un it

Cost

• Old, original rooftop units

• Original, inefficient boilers

• Obsolete Building Controls

Measures Considered•Lighting system improvements•Energy efficient motors and pump•Steam trap repairs and replacement•Water and waste water conservation•Variable frequency drives•HVAC equipment upgrades•New or upgraded appliances•Vending machines, plug loads•Energy Management Systems and Building Automation Systems•Cogeneration•Micro-turbines•Renewable Energy Options; PV, Wind, Fuel cell, Geo-thermo•Window replacements•Solar thermal for swimming pools, hot water•Central Plant upgrades, boilers, water treatment•Fuel switching options•Electrical systems upgrades and Preventive Maintenance

The Measures

ECM # Description1 Lighting & Controls2 Rooftop Units Replacement3 H&V Retro Commissioning4 Downsize and Replace Boilers5 Energy Management System6 Motors & Drives7 Reheat Conversion8 DHW System Improvements9 Network Controller10 Building Envelope11 Vending Machine Controls12 Cooler Control System13 Water Conservation14 Propane Conversion

Used this opportunity to clean all ductwork in the building.

New Lighting Technology

• Replace existing T-8 florescent fixtures to New T-5 Indirect fixtures

• Replace Incandescent fixtures in Lobby area New T-5 Indirect fixtures

• Upgrade Metal Halide fixtures in shop area with T-5 fixtures

• Install occupancy sensors in classrooms, offices, shops and gym

Old Lighting Technology New Lighting Technology

New Hybrid Boiler Plant• Installation of a Hybrid Boiler Plant consisting of –

• (2) condensing boilers and

• (2) non-condensing boilers

• Installation of –• (2) high-efficiency pumps with VFD’s

• (1) primary and• (1) back-up pump

VFD = Variable Frequency Drives

Existing Boiler Plant New Hybrid Boiler Plant

New Domestic Hot Water Tanks

• Replace the existing 2,550 gallon storage tank with –

(4) 119 gallon indirect fired storage tanks tied into

the new hybrid boiler plant

Old Domestic Hot Water Tank New Domestic Hot Water Tanks

New Rooftop Units

• Demo the existing Jackson & Church RTU’s with DX Cooling and Hot

Water Coils

• Replace with new Seasons4 RTU’s offering high-efficiency components

• Write program to maximize efficiency and comfort

Old Rooftop Units New Rooftop Units

The Final ProjectElectrical Fuel Nat. Gas Propane Water Sewer GuaranteedSavings Oil Savings Savings Savings Savings Savings(kWh) (Gals) (Therms) (Gals) (kGals) kGals) ($)

1 Lighting & Controls 322,301 -5,392 $41,842.00

2 Rooftop Replacement 44,637 38,248 -49,734 $71,537.00

3 H&R Retro Commissioning 13,153 -16,666 $22,674.00

4 Downsize and replace Boiler 238,972 19,887 -24,338 $32,094.00

5 EMS 84,908 18,043 $62,744.00

6 Motors & Drives 44,676 $13,067.00

7 Reheat Conversion 606 -1,794 $4,771.00

8 DHW System Improvements 75,000 -118 $2,084.00

9 Network Controller 7,542 -1,255 $9,737.00

10 Building Envelope 5,483 8,339 $14,624.00

12 Vending Machine Controls 17,983 -92 $791.00

13 Cooler Control System 510 $3,075.00

14 Water Conservation -309 586 586 $5,553.00

18 Propane Conversion -5,633 6,190 $2,940.00

Total 841,502 72,404 -78,949 6,190 586 586 $287,533.00

DescriptionECM #

Pre and Post Numbers

Electric Cons Fuel(kWh) kWH/Sqft (Mbtus) MBH/Sqft

Existing 1,787,665 12.1 10,605,696 71.55

Proposed 946,163 6.4 7,898,671 53.26

Savings 841,502 5.7 2,710,825 26%

Questions???Questions???