Eco-School Business Development

October 7, 2016

Boston, MA

Northern Lights Solutions

Dmitri NaoumovProject Manager

Mackenzie de CarleLighting Retrofit Team Lead

Ernesto Diaz

Lozano Patino

Matheos TsiarasOutreach Team Lead

Arthur LeungEnergy Analysis Team Lead

Claire GaoTeam Lead

2

Agenda

• Client Introduction

• Facility Overview

• Energy Audit Results

• Lighting Retrofit

• Solar Photovoltaic System

• Project Financing and Schedule

• Project Outreach

• Acknowledgments3

Client Introduction

University of Toronto Schools• Located in Toronto, Ontario, Canada

• Opened in 1910 for grade 7-12 students

• Is the only merit-based university preparatory school in Canada associated with a university

• Offers specialized curriculum that encourages social responsibility

4

Facility Overview

• 3-storey structure with below-grade basement

• Majority of space dedicated to classrooms

• Brick façade; single-pane glass covers ~60% of exterior

First Floor Plan

5

Lighting49%AC and

Ventilation23%

Laboratory and PC

19%

Swimming Pool8%

Other1%

Energy Audit Results

Energy Audit Results• Major lighting fixtures include 2’ and

4’ T8 32W linear fluorescents in classrooms and hallways

• HVAC consists of individual A/C units and ceiling fans

• Science labs equipped with 9 fume hoods; computer labs equipped with 100 computers

• Water pumps and heaters for swimming pool in use 600hrs/month Electrical Energy

Consumption 6

Energy Efficiency Analysis

Proposed Improvements

Reduce current lighting consumption by upgrading to LED lighting

Optimize lighting system by installing occupancy sensors and daylighting controls

Install rooftop photovoltaic system for supplementary revenue and as an educational tool

7

Lighting Retrofit

• Two rooms under study

– Room 203: East-facing exterior

– Room 210: South-facing exterior

– Are representative of typical classrooms

– Have different lighting requirements

• Two options investigated per room

1. Replace types of lights used

2. Lighting control and room improvements8

Lighting Retrofit

Lighting Schematic

Room 203

• Existing Conditions

– 32 x 4’ T8 32W linear fluorescent

– Poor room light quality

(< 500 lux)

• Option 1– Replace with 32 x 4’ T8 24W Linear LED Ballast Bypass– Provide better lighting conditions– 615 kWh/yr Electricity Savings

9

Lighting Retrofit

Occupant Sensing Light Switch

10

Room 203

• Current Conditions

– Lights in use 12 hours/day (7AM – 7PM)

• Option 2

– Installation of occupant sensing light switches with manual override

– Decrease total usage of artificial lighting to 8 hours/day

Lighting Retrofit

Room 203 Financial Analysis

Upgrade to 24W LED Occupant Sensors

Electricity Savings (kWh/yr)

870 1160

Capital Cost (CAD) 1975 135

Annual Cost Savings (CAD/yr)

220 290

ROI (%) 6 2425

Payback (years) 9.1 0.5

11

• Option 1– Replace with 32 x 4’ T8 18W Linear LED Ballast Bypass– Match current lighting conditions– 1075 kWh/yr Electricity Savings

Lighting Retrofit

Room 210

• Existing Conditions

– 32 x 4’ T8 32W linear fluorescent

– Recommend light levels met

Classroom Rendering

12

Room 210

• Current Conditions

• Blinds often closed to prevent glare on workspaces

• Option 2

• Install light shelves

• Reflects natural light further into the room

• Artificial light can be kept off for significant portions of the day

Lighting Retrofit

Light Shelves

13

Lighting Retrofit

Room 210 Financial Analysis

Upgrade to 18W LED Light Shelves

Electricity Savings (kWh/yr)

1525 580

Capital Cost (CAD) 1900 800

Annual Cost Savings (CAD/yr)

380 145

ROI (%) 95 175

Payback (years) 5 5.5

14

Solar Photovoltaic System

System Design

• Tilted section of roof on northwest corner of building ideal for location of solar PV array

• Two sets of 10 Canadian Solar CS6P-260P panels, connected in parallel, to match specified inverter

• Connected to industry grade meter, then to the grid

Location of Solar PV System

15

Solar Photovoltaic System

Shading Study

• Four nearby buildings considered as possible sources of shading

• Shading analysis run for noon on the Winter Solstice

Shading Analysis Diagram16

Solar Photovoltaic System

Shading Study

• Consideration of shading from nearby roof structure

Rooftop Solar Shading Study17

December March

SeptemberJune

Solar Photovoltaic System

Electrical Schematic

Solar PV System 3 Line Diagram18

Project Financing and Schedule

Project Schedule• Pre-construction and Design phases begin Spring 2017

• Construction activities start June 29, 2017, and end September 1, 2017

• Emphasis of no interference with regular school operations

19

Project Financing and Schedule

Cost Estimate for Selected Lighting Options

20

Category Cost Estimate

Design Costs (5%) $200

LED Installation(Rooms 203/210)

$3,872

Classroom Lighting Automation(Room 203)

$132

Additional Costs (11%) $440

Subtotal $4,644

Overhead and Profit (6%) $279

Project Total (CAD) $4,923

Project Total (USD) $3,855

Project Financing and Schedule

Grants and IncentivesName Incentive/Grant Comment

TD Friends of the Environment

$1,000 CAD Max $4,000 CAD

Toronto Hydro Retrofit Program

$235.09 CADLighting - $0.05/kWh

Automation - $0.10/kWh

IESO microFIT ProgramEnergy sold to system

operator from installedsystem

$0.207/kWh for installations in 2017

21

Project Financing and Schedule

Project Financial Summary

22

Rooms 203/210 Only

Whole Building, 18W LED and Lighting Automation

Project Cost (CAD) $4,923 $151,556

Incentives Available $1,221 $11,387

Net Project Cost (CAD) $3,702 $140,169

Annual Energy Savings(MWh)

3.26 135.78

Annual Bill Savings (CAD) $653 $27,156

Annual O&M (CAD) $20 $800

Simple Payback (years) 5.8 5.3

Net Present Value (6% discount)

$3,556 $162,138

Project Financing and Schedule

Project Cash Flow Plan• Cash flow for UTS is presented for the whole building lighting

retrofit

• $150,000 Bank Loan at 5.7% interest, paid back in 9 installments over 10 years

23-$100,000

$0

$100,000

$200,000

$300,000

$400,000

2017 2021 2025 2029 2033 2037

20

16

$ C

AD

Bill Savings

Loan Repayment

Cumulative Cash Flow

Project Outreach

Partnership with University of Toronto Schools• Several potential events for Fall 2016/Winter 2017 that focus

on student learning and engagement, including:

– Guest lectures on topics such as building envelope design and solar PV systems

– Workshops on the scientific research and investigation processes

– Site visits to University of Toronto cogeneration plant

24

Project Outreach

Project Blog• Periodically updated to inform

subscribers of project progress

• Potential to leverage blog to share information on industry best practices and energy-reducing strategies

Example Project Blog Entry

25

Project Outreach

University of Toronto Sustainability Conference• Annual conference which attracts thousands of visitors

• Project team held a booth during the tradeshow, where attendees could learn about project activities

Project Team Members at Conference26

Project Outreach

Media Coverage• Daily Commercial News

• The Civilian, the University of Toronto Civil + Mineral Engineering alumni magazine

• The Cannon, University of Toronto Engineering’s newspaper

27

Project Outreach

2015 Green Energy Challenge• Client: Good Shepherd Ministries

• Project is proceeding to completion– Detailed design completed

– Materials purchased

– Contractors hired

28

• Scheduled completion: October/November 2016

Acknowledgments

29

Thank you!

Questions?