Watermark Apartments – Hawthorn

CASE STUDY

Focused Facilities Management engaged Greenwire Consulting to undertake a detailed energy audit for Watermark Apartments, located within the Melbourne inner suburb of Hawthorn. Focused FM’s director Jeromias D’Costa is a mechanical engineer and knows the benefits of seeking expert advice, especially when it comes to assessing energy efficiency of facilities found to consume higher than normal electricity.

Energy Audit Details – The audit focused upon electrical equipment common to apartment owners, such as carpark lighting, carpark ventilation equipment, mechanical heating & cooling plant, lifts etc. The site was also assessed for the viability of Solar PV electricity generation. Power loggers were fitted to various switchboard circuits for 2 weeks to assist in constructing a load profile for the site. The largest consuming items were mechanical plant 55% and car-park/external lighting 40%. The oversized 45kW recirculating loop pump operates 24 hours per day 7 days per week consuming 40% of site electricity. Modifications to the pump arrangement were recommended to reduce energy consumption.

ENERGY SAVINGS REVEALED

  • $ 27,800 PA – equivalent to 240 tonnes of CO(e) emissions per year.

EQUIPMENT AUDITED

GAS HEATING BOILER

Boiler daily frequency of operation was measured using internet enabled energy monitoring equipment.

Watermark Apartments carpark fan

CARPARK FANS

Supply & Exhaust fans operating times measured to ensure adequate ventilation of underground carpark.

Watermark Apartments exhaust fan

EXHAUST FANS

Numerous roof top toilet & general exhaust fans assessed. Operating parameters reviewed for energy efficiency.

Watermark Apartments switchboard

SCREW CHILLERS

8 large capacity refrigeration system screw compressors were checked for energy efficiency.

Watermark Apartments pumps

RECIRC LOOP PUMP

The largest consumer of electricity on site. A new operating strategy was formulated.

Watermark Apartments mech board

ELECTRICAL METERING

House Services Switchboards were checked that they served the right equipment.

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