Full Case study for First Markham Village Homes Inc.

Address: 8 Cox Blvd · City: Markham, , Ontario · Postal Code / Zip code: L3R 4G1


1. Summary


The latest inventive design of GLL LED tubes with sensor made it great for application like underground parking lot, stairwell and corridor. The following saving can be achieved if FMV replace all the T12 8’ fluorescent lamps in underground parking lot to GLL LED tubes.

  1. The annual energy savings: 1,037,640.98KWH

  2. The annual economical savings: $141,368.32

  3. The project cost: $212,104.35

  4. Incentives: $41,127.5(Ontario)

  5. The payback period: 1 year and 2 months



2. Background


First Markham Village (FMV) is a townhouse complex located at 8 Cox Blvd, Markham ON L3R 4G1, near HWY 7E and Warden Avenue. FMV has a big underground parking lot which has a capacity for 800 cars. There are 895pcs of 110w T12 8’ fluorescent lamp and 284pcs of 60w T12 4’ fluorescent lamp. The lighting system is an old system that consumes a huge amount of energy, and the voltage of lighting system is 347V.


The Map of Underground Parking Lot at FMV


Globe LED Lighting Inc.(GLL) has installed 2 portable power meters at parking stall #85 and #87 on Dec 16, 2013 to track the electricity consumption of two T8 4’ LED tubes with sensor and one 110wT12 8’ fluorescent lamp



3. Portable Power Meter

  1. The portable power meter was installed to monitor two 18W LED tubes with sensor at #85

(Full power 18W/Eco power 6W)



  1. The portable power meter was installed to monitor one 110W T12 8’ fluorescent lamp at #87

(Always 110W)




4. Actual Data from portable power meter


A. Parking stall #85(2pcs of T8 LED 4' Tube with Sensor) Date and time Energy Consumption Hydro Bill 2013/12/16 13:00 The power meter was installed 2013/12/23 11:00 1.39KWH $0.17

2013/12/30 12:00 2.99KWH $0.37 2014/01/06 13:30 4.59KWH $0.57 2014/01/20 12:00 7.77KWH $0.97 2014/02/04 13.00 11.15KWH $1.39 2013/02/10 15:00 12.53KWH $1.57 2014/02/18 13:00 14.56KWH $1.82 2014/03/04 14:00 17.54KWH $2.19 2014/03/18 15.30 20.77KWH $2.60


B. Parking stall #87(one T12 8' fluorescent lamp) Date and time Energy Consumption Hydro Bill


2013/12/16 13:00 The power meter was installed 2013/12/23 11:00 am 19.49KWH $2.44 2013/12/30 12:00 41.64KWH $5.21 2014/01/06 13:30 63.76KWH $7.97 2014/01/20 12:00 107.33KWH $13.42 2014/02/04 13:00 153.29KWH $19.16 2013/02/10 15:00 171.95KWH $21.49 2014/02/18 13:00 196.29KWH $24.54 2014/03/04 14:00 239.02KWH $29.88 2014/03/18 15.30 281.11KWH $35.14

Note: $0.125/KWH


C. Table of Energy Consumption and Hydro Bill (in 92 days)



5. Analysis


A. The Energy Consumption (daily and annual)


The electricity consumption of two 18W T8 4’ LED tubes with sensor is 0.226KWH/per day in underground parking lot according to the actual track data( 20.77kwh/92days), then annual electricity consumption is 82.49KWH/per year(0.226KWH*365days). The annual hydro bill is $10.31


The electricity consumption of one 110W T12 8’ fluorescent lamp is 3.056KWH/per day in underground parking lot according to the actual track data(281.11KWH/92days), then annual electricity consumption is 1115.44KWH/per year(3.056 KWH*365days). The annual hydro bill is $139.43


Table of Energy Consumption (daily and annually)



B. Project Summary


There are 895pcs of 110W T12 8’ fluorescent lamp and 284pcs of 60W T12 4’ fluorescent in underground parking lot at First Markham Village. If the existing fluorescent lamps were used, the annual electricity consumption and hydro bill as below:


The Annual Electricity Consumption: 1115.44KWH*(895+284/2) =1,156,711.28KWH


The Annual Hydro Bill: 1,156,711.28KWH*$0.125=$144,588.91


If all the lamps is going to be retrofitted with 1740pcs of 18W T8 LED tubes with sensor at parking stall and 300pcs of 18W T8 LED tubes without sensor at parking driveway, the annual electricity consumption and hydro bill as below:


The Annual Electricity Consumption: 82.49KWH*(1740/2) +18w*24h*365d*300 =119,070.3KWH


The Annual Hydro Bill: 119,070.3KWH *$0.125=$14,883.79




Table of Project Annual Energy Consumption, Hydro Bill and Saving



6. Finance Analysis


A. Maintenance Cost


If the lifespan of T12 8’ fluorescent lamp is 30,000 hours (3.4 years), then 305pcs of T12 8’ fluorescent lamp have to be replaced for every year. The price of T12 8’ fluorescent lamp is $9.98/each.


The cost of replacing lamps for one year: 305pcs * $9.98=$3,043.9


If the lifespan of ballast is 100,000 hours (11.4 years), then 90pcs of ballast have to be replaced for every year. The price of ballast (for T12 and AC347V) is $75.97/each. The labor cost of replacing ballast is $20/each.


The cost of replacing ballasts for one year: 90pcs * ($75.97+$20)=$8,637.3


The total cost of maintenance for one year: $3,043.9+$8,637.3=$11,681.2



B. Project Cost


The project cost is $212,104.35(please see the proposal for FMV).


Note: The hydro bill will be increased by 30% in the next 3 years. The actual payback will be short.