THE MEWS - PRIVATE APARTMENTS

147 Charles Street West Perth
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PostPosted: Mon Aug 04, 2014 5:54 pm 
Site Admin

Joined: Tue Jan 06, 2009 5:53 pm
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Over the next few months we will be performing an energy efficient lighting trial / case study at the complex.

This trial involves replacing existing fluorescent lighting installed around the building walkways with LED lighting.

The trial will replace around 20% of the current lighting and will run for one electricity billing period (two months.)

This new LED lighting is stated to use 60% less energy than the current lighting and therefore if proven effective will pay for itself within 3 years of installation. After the 3 years we will experience savings until the lighting requires replacement (approx 10 years)

The total cost of the trial is $600.


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PostPosted: Tue Aug 05, 2014 6:49 am 
Site Admin

Joined: Tue Jan 06, 2009 5:53 pm
Posts: 2511
Trial has been approved

/viewtopic.php?t=802


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PostPosted: Fri Aug 08, 2014 1:35 pm 
Site Admin

Joined: Tue Jan 06, 2009 5:53 pm
Posts: 2511
The building lighting is currently made up of the following (prior to trial commencing):

Front Building
- Ground Floor : 7 fluorescent tubes
- First Floor : 7 fluorescent tubes
- Second Floor : 3 fluorescent tubes / 6 LED bulbs

Rear Building
- Ground Floor : 14 fluorescent tubes
- First Floor : 14 fluorescent tubes
- Second Floor : 11 fluorescent tubes / 6 LED bulbs

TOTAL: 56 fluorescent tubes


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PostPosted: Sat Aug 16, 2014 4:14 pm 
Site Admin

Joined: Tue Jan 06, 2009 5:53 pm
Posts: 2511
08/08/2014 : The trial lighting has been installed.

12 fluorescent tubes have been replaced with LED tubes (just over 20%)

Rear Building
- First Floor : 12 LED tubes / 2 fluorescent tubes

PREVIOUS TOTAL: 56 fluorescent tubes
CURRENT TOTAL: 44 fluorescent tubes / 12 LED tubes

We will be monitoring power consumption closely over the next few months and will update this page with information as it becomes available.


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PostPosted: Fri Sep 05, 2014 6:32 am 
Site Admin

Joined: Tue Jan 06, 2009 5:53 pm
Posts: 2511
16/08/2014 : The new lighting was installed just over a week ago and is already showing signs of reducing electricity consumption significantly.

Due to this reduction we are able to estimate that the new lighting will pay for itself in under 24 months.

Power consumption before change : 2150W
Power Consumption after change : 1550W (600W change or 50W per light fitting)
Savings per day after change : $1.10
Payback period : 1.5 years ($600.00 total cost / $1.10 per day = 545 days or 1.5 years)


The chart below shows the reduction in energy use before and after the lighting trial started.


Attachments:
20140816_power_consumption.png
20140816_power_consumption.png [ 14.84 KiB | Viewed 4333 times ]
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PostPosted: Wed Apr 08, 2015 11:05 am 
Site Admin

Joined: Tue Jan 06, 2009 5:53 pm
Posts: 2511
As a result of the success of this trial, a program to replace all building lighting has commenced.

/viewtopic.php?t=917


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