THE ROCKS HEAT EXCHANGE PRESENTATION BY BRIAN COCK MANAGER, FACILITIES ASSET MANAGEMENT SERVICES

AUGUST 2012

What is a heat exchange system?

. It is a heat transfer system . Heat is transferred from one fluid to another . In the case of The Rocks (closed loop) heat exchange system will allow multiple buildings air conditioning and refrigeration plant to transfer heat to and from Harbour

Sydney Harbour heat exchange systems

. Sydney Harbour has been utilised for heat exchange systems for more than a century predominantly for electricity power generation . Power stations included: Ultimo (1902), Balmain (1903), Pyrmont (1904) and White Bay (1912) . The Rocks power station constructed (1907) – never commissioned . Emergence of commercial air conditioning in the 1960’s introduced additional smaller open seawater systems

Open sea water cooled air conditioned buildings

. – . AMP Building – Alfred Street – Circular Quay . Park Hyatt Hotel – Circular Quay . Museum of Contemporary Art – Circular Quay . Sydney Convention & Exhibition Centre – . Power House Museum – Darling Harbour . King Street Wharf – Darling Harbour . Star Casino – Pyrmont Bay . Workplace 6 – Pyrmont Bay . Barangaroo (under construction) – Darling Harbour Closed sea water cooled air conditioned buildings

. Closed loop / hydrothermal seawater systems are rare in and around the world. . Sydney sites include Balmain Water Police (200kW) and Wharf 11 Woolloomooloo (500kW) . The proposed Rocks Heat Exchange will have a capacity of (7MW) and is likely to be the largest of its type in the world.

Sea water open Heat rejection options system Geothermal

Sea water / Hydrothermal closed system

Air Cooled

Cooling towers Open system challenges

. High maintenance costs – continual marine growth . Complex and difficult facility maintenance routine . Increasing Environmental Protection Authority (EPA) compliance requirements . A changing marine ecology . Reduced energy savings

Open system challenges

. Sydney Convention & Exhibition Centre – marine fouling / debris Sea water closed system overview BUILDING NO. 1

NO. 2 NO. 3 NO. 4

COMPRESSOR

PLANT ROOM MAIN PLANT ROOM

Heat rejection modules

CLOSED LOOP DISTRICT HEAT EXCHANGE SYSTEM SYDNEY HARBOUR 88 GEORGE STREET heritage precinct 88 GEORGE STREET upgrade lift and foyer master plan ‘creative class’ tenants activate rooftop ROOFTOP remove cooling towers district air conditioning solution 88 GEORGE STREET panoramic harbour views 88 GEORGE STREET activated rooftop glass gazebo corporate hospitality venue KEY BENEFITS minimised lifecycle costs optimised adaptive re-use less power, water, chemicals no legionella risk less rooftop clutter seamless staged refurbishment minimal heritage impact no separate heating system

‘connect and forget’ LOCATION OPTIONS

Campbells Cove PREFERRED LOCATION

Overseas Passenger Terminal SYDNEY PORTS CORP. negotiations and consultations risk assessments Sydney Ports Corporation

. Negotiations and consultations . Risk assessments

PROJECT SCOPE

Stage One

Stage Two

l l l l l l l l l Heat exchange buildings

86 88 George Street former Bushells Building Heat exchange buildings

Campbell's Storehouse PROJECT STATUS prototype development

Water Police model Balmain Water Police

Marine fouling post 5 years Concept design Preliminary temperature data Module design

. World first

Prototype module installed

PROJECT OUTCOMES

7 megawatt capacity closed loop system

Air conditioning and refrigeration

$25k annual maintenance costs

56% annual energy savings

35.5Ml annual water savings

$6.27m budget THANK YOU