Franklin County Technical School Performance Contract Project

Performance Contracting Overview

 innovative method to purchase energy efficiency improvements in buildings (MGL Ch 25A Sec 11i)  single procurement is used to purchase a complete package of services  financing of the entire project so there are no “up front” costs

 Projects are paid for from utility savings, utility rebates, savings in cost of maintenance for existing “tired” mechanical systems  Savings are guaranteed by ESCO (Energy Service Company)

Benefits of Performance Contracting

 Project completion with little or no “immediate” funding  Streamlines the procurement process   Provides continuity Projects are “commissioned”  Long-term partnership with Energy Service Company (ESCO)  High quality equipment compared to low bid process

The ESCo is the single source provider

Municipality ESCo Develop Design Construct Maintain Finance

Performance Contract 101 How it works: 100% 80% 60% 40% 20% 0%

Before Contract During Contract After Contract Savings Investment Utilities

• Built in 1975 •151,000 Square Feet •Single Story, Brick Faced •525 Students •100 Staff

Utility Unit Utility Electrical $0.171

Cost Blended #2 Oil Propane Water Sewer** $3.75

$1.93

$1.75

$5.30

Gals Gals kGals kGals Baseline Usage 1,787,665 72,404 6,190 4,310 1,416 Cost Units $ kWh $305,691 Gals $271,514 Gals kGals $11,946 $7,527 kGals $7,505

• 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 # 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Description Lighting & Controls Rooftop Units Replacement H&V Retro Commissioning Downsize and Replace Boilers Energy Management System Motors & Drives Reheat Conversion DHW System Improvements Network Controller Building Envelope Vending Machine Controls Cooler Control System Water Conservation 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 Seasons 4 RTU’s offering high-efficiency components • Write program to maximize efficiency and comfort

Old Rooftop Units New Rooftop Units

The Final Project

ECM # 1 2 3 4 5 6 7 8 9 10 12 13 14 18 Description Lighting & Controls Rooftop Replacement H&R Retro Commissioning Downsize and replace Boiler EMS Motors & Drives Reheat Conversion DHW System Improvements Network Controller Building Envelope Vending Machine Controls Cooler Control System Water Conservation Propane Conversion Total Electrical Savings (kWh)

322,301 44,637 238,972 84,908 44,676 75,000 7,542 5,483 17,983

841,502 Fuel Oil (Gals)

38,248 13,153

Nat. Gas Savings (Therms)

-5,392 -49,734 -16,666 19,887 -24,338 18,043 606 510

72,404

-1,794 -118 -1,255 8,339 -92 -309 -5,633

-78,949 Propane Savings (Gals)

6,190

6,190 Water Sewer Savings Savings (kGals) kGals) Guaranteed Savings ($)

$41,842.00

$71,537.00

$22,674.00

586 586 $32,094.00

$62,744.00

$13,067.00

$4,771.00

$2,084.00

$9,737.00

$14,624.00

$791.00

$3,075.00

$5,553.00

$2,940.00

586 586 $287,533.00

Pre and Post Numbers Existing Proposed Savings Electric Cons (kWh) 1,787,665 946,163 841,502 kWH/Sqft 12.1

6.4

5.7

Fuel (Mbtus) 10,605,696 7,898,671 2,710,825 MBH/Sqft 71.55

53.26

26%

Questions???