Summary

ROI: 3.4 years (incl installation)

A standard & emergency Chamaeleon LED light retrofit of T8 fluorescent batten lighting in the underground car park & fire stairs of the 93 apartment complex on the Brisbane River contributes to a National Energy Efficiency Award win for electrical contractor Briett Thiedeke. Combined with a wider scope of upgrade works including lifts, exhaust fans, HVAC, pool pumps, garden & pool lighting a 30% reduction in TOTAL common area electricity usage was achieved from 2012-15.

Savings

Energy: 79%

Electricity: 52,020 kWh pa

Total: $212,259
Energy & maintenance over 10 years

Savings per fitting: g: $119 pa
Avg annual energy & maintenance saving over 10 years

79 %

Project Overview

The car park and fire stair lighting upgrade was part of a wider energy management project that was instigated by Brett Thiedeke. Brett has been the site's electrical contractor for 10 years including planned & reactive electrical maintenance, which enabled him to develop a strong understanding of the building's operating costs and opportunities for improvement.

The extensive project which also included HVAC controls, data logging, car park exhaust fan timer clocks, garden & lobby lighting upgrades was recognised as State Energy Efficiency Project Winner by Master Electricians QLD in October 2015 and NATIONAL winner a month later.

 

Testimonial

We are very pleased with the Chamaeleon light installation in the 4000m² underground car park of our South Brisbane apartment complex. In addition to the significant energy cost savings, the area is noticeably cooler.

The Solution

No failures were recorded at the first 6 monthly emergency lighting battery discharge test since the lighting upgrade, which has delivered an annual $10K saving in replacement parts & labour.

The Owners Corporation received an Energex Positive Reward payment of $1771, in recognition of the site's contribution to peak load reduction across its network.

Southbank Apartments Energy Management Results 2006-2015

Energy Saving Opportunity

Old Technology

Original Power (kWhpa)

New Technology

New Power (kWhpa)

Savings (kWhpa)

Car park Exhaust Fans*

24 hr 4 x 18.5kW

648,240

1 x 18.5kW Fan run 1.5hr day

10,129

638,111

Pool Heater

3 ph. 21kW heater

150,000

Heat Pump

20,000

130,000

Lighting Electricity Savings

Fluorescent + Halogen

309,370

LED + sensor + PE cell

68,555

240,815

Lighting Maintenance Savings

 

 

Reduced repair & replacement costs

 

$18,000

HVAC toilet exhaust

8 x 3phase 1.4kW
Fan motors
Run time 24/7

98,112

Time clocks & duty
cycles

24,528

73584

 

 

 

 

TOTAL

1,112,639

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