Sample Energy Audit - Jan 1 09
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Sample Energy Audit - Jan 1 09

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Report To: Mr. John Smith Smith Printing Company ENERGY AUDIT 123 Main Street January 1, 2009 Mississauga, Ontario 120 Carlton Street, Suite 212 Toronto, Ontario M5A 4K2 Tel 416-964-3246 Toll Free 1-866-964-3246 Fax 416-964-2046 www.CDWengineering.com TABLE OF CONTENTS 1.0 SUMMARY...................................................................................................................... 1 2.0 INTRODUCTION......................................................................................................... 4 3.0 ENERGY CONSUMPTION....................................................................................... 6 4.0 LIGHTING.................................................................................................................... 12 5.0 HEATING, AIR-CONDITIONING AND VENTILATION......................... 14 6.0 PLUMBING .................................................................................................................. 16 7.0 EXTERIOR COMPONENTS................................................................................... 16 8.0 SUMMARY OF RECOMMENDED ENERGY CONSERVATION MEASURES 18 9.0 INQUIRIES ................................................................................................................. 19 10.0 CLOSING COMMENTS ........................................................................................... 20 APPENDIX A – Photographs STATEMENT ...

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 Report To:  Mr. John Smith  Smith Printing Company
ENERGY AUDIT   
 
 
 
 
120 Carlton Street, Suite 212 Toronto, Ontario M5A 4K2 Tel 416-964-3246 Toll Free 1-866-964-3246 Fax 416-964-2046
www.CDWengineering.com  
 
 
 
 
 
 
TABLE OF CONTENTS   
1.0  SUMMARY ...................................................................................................................... 1  2.0  INTRODUCTION ......................................................................................................... 4  3.0  ENERGY CONSUMPTION ....................................................................................... 6  4.0  LIGHTING .................................................................................................................... 12  5.0  HEATING, AIR-CONDITIONING AND VENTILATION ......................... 14  6.0  PLUMBING .................................................................................................................. 16  7.0  EXTERIOR COMPONENTS ................................................................................... 16  8.0  SUMMARY OF RECOMMENDED ENERGY CONSERVATION MEASURES .................................................................................................................. 18  9.0  INQUIRIES ................................................................................................................. 19  10.0  CLOSING COMMENTS ........................................................................................... 20  
APPENDIX A  Photographs
STATEMENT OF QUALIFICATIONS
 
Carson Dunlop Weldon & Associates Ltd.
 
Table of Contents  
 
January 1, 2009 Energy Audit Report Property: 123 Main Street, Mississauga, Ontario
This is an energy audit report (EAR) of th e property at 123 Main Street, Mississauga, Ontario. This is a single-storey, multi-unit industrial building. The subject unit covers an estimated 5,200 square feet (very rough estimate). There is an office portion at the front that covers approximately 1,000 square feet. The entire space is conditioned (approximately 477.5 m 2 ). The building is presently used for printing by Smith Printing Company. This report has been prepared by Carson Dunlop Weldon & Associates Ltd. on behalf of our client, Mr. John Smith of Smith Printing Company. Our client is the current lessee and this report has been prepared to provide pertinent information on the energy use at the property and the potential for energy use reduction. The site visit was carried out on December 17, 2008, in the company of Mr. John Smith of Smith Printing Company.
Lighting
The lighting fixtures for the building are of the fluorescent and incandescent types.
Heating, Air-Conditioning and Ventilation
The building heated and cooled by two, gas-fired, rooftop units. Fresh air is supplied by air ducts in the rooftop equipment and operable windows. Exhaust is achieved by individual exhaust fans and operable windows.
Plumbing
There are four sets of 2-piece washrooms at the building. There is an electric domestic water heater.
Carson Dunlop Weldon & Associates Ltd.         
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123 Main Street, Mississauga, ON
Building Envelope
Report W090101W  January 1, 2009
The roof is covered by a built -up asphalt and gravel membrane. The exterior walls are solid masonry. The exterior doors are aluminum-framed, single-glazed and steel units. The windows are wood- and alum inum-framed, double-glazed un its. There are steel-framed, single glazed units in the warehouse. Insulating types noted in the building include rigid polyisocyanurate foam on the roof.
Annual Utility Costs and Consumption
The following is a summary of the most rece nt annual energy consumption and associated costs:
 C Annual Utility Cost onsumption Cost Index Intensity Usage (GJ) ($/GJ) (GJ/m 2 ) Electricity $2,859 87 32.86 0.18 Natural Gas $3,274 275 11.90 0.58 Total $6,133 362 16.94 0.76  Comparison to Reference Building
Comparing the energy use intensity (energy use per square foot of conditioned space) of the subject building with data published by Natural Resources Canada, it was noted that the energy consumption is less than similar buildings. While this is a favourable result, there is nevertheless potential for cost effective retrofits.
 
Carson Dunlop Weldon & Associates Ltd.
 
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123 Main Street, Mississauga, ON
Recommended Modifications
Report W090101W  January 1, 2009
$80 4 GJ 1 GJ
$275 8 GJ
2.5 years
5.5 years
The main opportunities for energy conservation at the above property include upgrading of the aging heating and air-conditioning unit on the roof and lighting upgrades. The following lists recommended modifications in ranked order: Report Recommendation Initial Annual Annual Savings Simple Ref Cost CCoaspti tal $ Gas Electricity Payback Savings 5.2.3 Provide $75 $45 1 GJ 1 GJ 1.6 years programmable thermostat for warehouse rooftop unit  7.2.3 Replace cracked or $200 missing glazing sections at windows  4.2.2 Update  eight foot $3,700 $400 fluorescent luminaires in warehouse with T8 lamps using electric ballasts 4.2.1 Update  2- and 4-lamp $1,750 fluorescent luminaires with T8 lamps using electric ballasts and mirrored reflectors. 7.2.1 Replace sealants in $2,490 exteriors walls 5.2.2 Install economizer $1,000 units on the rooftop equipment 7.2.2 Insulate and drywall $1,000 over steel framed, single glazed windows in warehouse  Total $10,215 $400
$230 7 GJ
$175 12 GJ 1 GJ $65 2 GJ
$35 3 GJ
$905 20 GJ 20 GJ
7.6 years
14.2 years 15 years
28 years
7.8 years
The total proposed energy saving measures have the potential to reduce the building’s energy consumption by 11%. The capital cost to implement these building system upgrades and improvements is $10,215, which can achi eve a net annual savings of 40 GJ. These annual savings transform into $905 in saving s per year, at current energy prices and a simple payback of 7.8 years. The total Incentives available for the recommended modifications are $15 from Enbridge and $400 from Natural Resources Canada.
Carson Dunlop Weldon & Associates Ltd.
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123 Main Street, Mississauga, ON
  
      
2.1
Report W090101W  January 1, 2009
Inspection Authorization and Scope As per the request of Mr. John Smith of Smith Printing Company and in accordance with our Proposal, an energy audit was pe rformed to identify the present energy consumers at the building unit and identify potential modifications that cost effectively reduce energy consumption. This assessment meets or exceeds the ASHRAE Research Project RP-669 and ASHRAE Special Project SP-56 – Procedures for Commercial Building Energy Audits and the Natural Resources Canada Federal Building Initiatives – Audit Standard Guidelines. Historic energy use was collected and analyzed as part of this assessment. This report provides: a detailed breakdown of energy end-use consumers, an analysis of current energy consumption by end-use, potential modifications that will reduce energy use and/or cost, a rank-ordered list of recommended modifications, including initial budget cost estimates for the modifications and the simple payback. The report also identifies applicable incentive programs (typically offered through government and utility providers) that will assist with the capital expenses associated with the modifications. The audit did not include testing the operation or efficiency of the equipment. The recommendations are based on an audit sampling technique. For example, a close review of each and every lighting unit to verify the type of ballast used was not undertaken. This report recommends modifications to reduce energy use and/or operating costs. It does not provide specifications or methods for performing the work. In some cases, a more detailed study is needed to prepare specifications for the work. This report is intended for the exclusive use of our client. Use of the information contained within the report by any other party is not intended and, therefore, we accept no responsibility for such use. This report is considered to be pr eliminary in nature. Before any major modifications are undertaken, we recommend a more detailed analysis be undertaken to develop a plan of action. The weather at the time of the inspection was overcast, with an approximate outdoor temperature of -3°C.
Carson Dunlop Weldon & Associates Ltd.
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Report W090101W  January 1, 2009
123 Main Street, Mississauga, ON 2.2 Building Description This is a single-storey, multi-unit industrial building. The subject unit covers an estimated 5,200 square feet (very rough esti mate). There is an office portion at the front that covers approximately 1, 000 square feet. The entire space is conditioned (approximately 477.5 m 2 ). It should be understood that all building sizes noted here are rough approximations based on site observations, and are for the purposes of this report only. The visible evidence suggests that the building was constructed approximately 40 years ago. The building is presently used for printing by Smith Printing Company. The building is occupied Monday to Friday, from 9 am to 5:00 pm in the winter, and from 9 am to 4:30 pm in the summer. For the purpose of this report, the front of the building is considered to be facing south. 2.3 Documents Reviewed As part of the Energy Audit, a request wa s made to review available building plans, maintenance records, warranties, equipment lists and at least 12 months of utility bills. The following was available for our review: Natural gas invoices – 12 months Hydro electric invoices – 12 months
 
  
Carson Dunlop Weldon & Associates Ltd.
 
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123 Main Street, Mississauga, ON
 
Report W090101W  January 1, 2009
Electrical Energy Use There is a single meter for the unit. The peak monthly demand in the summer is 28 kW. The electricity is supplied to the building by Enersource Hydro. The account number is 123456-1. Table 3.1 – Annual Electrical Consumption and Costs Billing Period Days in Consumption Demand Cost Period (kWh) (kW) ($) Sept 13 to Oct 17, 2007 34 1900 28 234.38 Oct 17 to Nov 13, 2007 27 1600 12 196.27 Nov 13 to Dec 13, 2007 30 2400 13 281.59 Dec 13 to Jan 15, 2008 33 2400 14 278.93 Jan 15 to Feb 14, 2008 30 2600 13 300.15 Feb 14 to Mar 13, 2008 28 2200 13 257.72 Mar 13 to Apr 11, 2008 29 2000 14 236.56 Apr 11 to May 9, 2008 28 1800 13 214.37 May 9 to Jun 11, 2008 33 1900 23 222.31 Jun 11 to Jul 15 2008 34 2000 23 232.21 Jul 15 to Aug 14, 2008 30 1700 28 202.58 Aug 14 to Sept 12, 2008 29 1700 26 202.58
Carson Dunlop Weldon & Associates Ltd.
 
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123 Main Street, Mississauga, ON  
 
 
   
3000
2500 2000 1500 1000 500 0
Energy Consumption (kWh)
Report W090101W  January 1, 2009
                17-Oct- 13-Nov- 13-Dec- 15-Jan- 14-Feb- 13-Mar- 11-Apr- 9-May- 11-Jun- 15-Jul- 14-Aug- 12-Sep-07 07 07 08 08 08  08 08 08 08 08 08  13-Sep- 17-Oct- 13-Nov- 13-Dec- 15-Jan- 14-Feb- 13-Mar- 11-Apr- 9-May- 11-Jun- 15-Jul- 14-Aug-07 07 07 07 08 08  08 08 08 08 08 08  Time (Date)     Figure 3.1 – Annual Energy Consumption Referring to Figure 3.1, it is noted that in general, electrical consumption in the heating season is greater than in the cooling season. The maximum monthly electrical consumption of the year occurs between January and February at 2600 kWh, while the minimum monthly electrical consumption occurs between October and November at 1600 kWh. Consumption through the summer months re mains almost constant, to maintain a cool working environment. However, it is rare for the electrical consumption in a gas-fired heated building to be greater in the winter than in the summer. Therefore, the lighting, plug loads and/or process equipment are consuming a larger percentage of electricity in the winter. This is expected as longer working hours were reported during the winter, compared to summer. As well, it was re ported that there are fewer employees during the summer. Lastly, it was reported that office staff might be using portable space heaters in the winter, which consume a large amount of electricity.
Carson Dunlop Weldon & Associates Ltd.
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30
25
123 Main Street, Mississauga, ON            
20
15
10
5
0
Demand (kW)
Report W090101W  January 1, 2009
17-Oct- 13-Nov- 13-Dec- 15-Jan- 14-Feb- 13-M  ar- 11-Apr- 9-May- 11-Jun 15-Jul- 14-Aug- 12-Sep--07 07 07 08 08 08 08 08 08 08 08 08 13-Sep- 17-Oct- 13-Nov- 13-Dec- 15-Jan- 14-Fe  b- 13-Mar- 11-Apr- 9-May- 11-Jun- 15-Jul- 14-Aug -07 07 07 07 08 08 08 08 08 08 08 08  Time (Date)   Figure 3.2 – Annual Electrical Demand  Based on the graph in Figure 3.2, the powe r demand has two distinct load profiles; summer and winter. The summer peak dema nd ranges between 23 and 28 kW, while the lower winter peak demand ranges between 12 and 14 kW. Peak demand in the late spring and early fall is quite high, when reduced air conditioning usage should significantly decrease peak loads. This represents a financial opportunity, as it should be possible to reduce peak demand charges in the spring and fall.
Carson Dunlop Weldon & Associates Ltd.
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123 Main Street, Mississauga, ON Report W090101W  January 1, 2009 Natural Gas Use There is a single gas meter for the unit located at the north exterior wall. The peak monthly gas consumption in the winter is 1602 m 3 .  The natural gas supply to the building is provided by Enbridge. The account number is 09 12 34 56789 1. Table 3.2 – Annual Electrical Consumption and Costs Billing Period Days in Consumption Cost Period (m 3 ) ($) Aug 15 to Sept 12, 2007 28 43 43.47 Sept 12 to Oct 16, 2007 34 0 94.23 Oct 16 to Nov 13, 2007 28 317 162.18 Nov 13 to Dec 13, 2008 30 1258 550.97 Dec 13 to Jan 15, 2008 33 1345 570.43 Jan 15 to Feb 14, 2008 30 1501 614.02 Feb 14 to Mar 17, 2008 32 1602 651.76 Mar 17 to Apr 15, 2008 29 882 365.83 Apr 15 to May 14, 2008 29 34 39.71 May 14 to Jun 13 2008 30 0 25.08 Jun 13 to Jul 15, 2008 32 108 93.87 Jul 15 to Aug 14, 2008 30 0 62.78 Note – Gas consumptions are taken directly from utility bills. No compensation has been made with respect to actual, estimated or adjusted readings. For the purposes of this report, all gas cons umptions are assumed to be actual. Assumptions in the analyses may be made with respect to estimated gas consumptions.     Carson Dunlop Weldon & Associates Ltd. Page 9