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.
Electricity: 52,020 kWh pa
Energy & maintenance over 10 years
Savings per fitting: $119 pa
Avg annual energy & maintenance saving over 10 years
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
Run time 24/7
|98,112||Time clocks & duty