City West Water’s

Business Resource Efficiency Program

Cameron FitzGerald

General Manager Service Sustainability

Melbourne, Australia

Λ Capital city of State of Victoria

Λ Size: 8,806 km2

Λ Population: 4.25 million

Λ Manufacturing hub

City West Water Λ Victorian State Government owned and run

on commercial basis

Λ Provides water, sewage, trade waste and

recycled water services to 389,551 customers

Λ 37,210 (around 10%) of customers are

commercial, industrial and institutional

Λ Service area includes industrial hub and

Melbourne’s CBD

Λ Approximately 40% of the 103,000 ML

(27,210 Mgal) per year of water supplied

within the catchment is to CII customers

Λ 10/28/2014

City West Water 4 2013 population

4.25 million 1991 population

2.5 million

1933 population ~ 1 million

City West Water’s Ongoing

Commitment to Water Efficiency

Λ CWW strategic goals:

• Efficient water users

• Clean and efficient producers

Λ Maintained core groups of water efficiency expertise

Λ Support Government’s new approach

• Melbourne’s Water Future

• Integrated water cycle management central part of plan

Drivers for Establishing the

Business Resource Efficiency Program

Λ Initiated in 2003 to assist business customers to:

• Improve water use efficiency in Melbourne’s Top 200 water users in

response to severe drought – CWW had 104 of these customers

• Reduce salt (total dissolved solids) and other critical contaminants in

trade waste discharge to enable use of recycled water in agriculture

Early program Λ Salt reduction plan and water efficiency with industrial

customers successful

• Building on relationships established through industrial and

business wastewater (trade waste) management

• Some great early wins

Λ Water efficiency with other commercial customers in Top

104 not so successful

• Difficulty engaging them with the service offering

• Expensive “War and Peace” audit

• Solutions not meeting customer need – flow control valves!

Program Design – keys to success

Λ Customers want a level of certainty of success to engage in process

Λ Simple audit with high level prioritised opportunities – waterMAP –

low or no cost

Λ Trusted and knowledgeable expert – staff or plumber to help them

identify opportunities

Λ Help to over come the barriers to implementation –expert advice, R

and D, information, behavioural change materials

Λ Benchmarking – how they compare to others of similar ilk

Λ Incentives –rebates or tailored grants and with ease of access

Λ Promotion and recognition of achievements

Λ Relationships above all, established, developed and nurtured

WaterMAP Template

Expert Advice, Information, and

Behavioural Change Materials

Research & Development Λ Program assists customers to investigate

barriers to water efficiency and recycling

Λ Projects conducted in conjunction with:

Λ Customers

Λ Universities

Λ Research institutions

Λ Government agencies

Λ Industry associations

Λ Projects can be:

Λ Customer specific

Λ Industry sector based

Λ Metropolitan wide

National Business Water Efficiency

Benchmarking Project (NBweb)

Λ Scope: To develop and display national sector

specific water efficiency benchmarks

Λ Cost: $AUD360,000 + in-kind

Λ Outcomes:

Λ Benchmarking methodology

Λ Website and portal www.nbweb.com.au

Λ 40 industry and climate specific benchmarks

Λ Learnings:

Λ Need many water utilities involved

Λ Difficulty in getting customer data to create

benchmarks – greatest opportunity while

customers are engaged during drought!

Promotion of Customer

Achievements

Λ Case studies

Λ Publications such as Liquid Assets

Λ Website

Λ External publications and conferences

Λ Resource Efficiency Seminar

Customer Engagement

Λ One on one relationship still most important

Λ Person to do the initial investigations for them

Λ Present them with opportunities and ways to realise them

Λ Reduce red tape, bring funding opportunities to their desk

Λ Quick wins important

Λ Demonstrate how they can achieve $$ savings

Λ Different tools for different business sizes

Results - Water

Water reduction of 16.2 billions litres (4.3 billion gallons) per year compared to 00/01 levels

-

10,000

20,000

30,000

40,000

50,000

60,000

2000/01 2001/02 2002/03 2003/04 2004/05 2005/06 2006/07 2007/08 2008/09 2009/10 2010/11 2011/12 2012/13

ML

Year

Non-residential water use (ML)

CWW Below 10ML CWW Above 10ML waterMAP

Water Energy Nexus

Water Energy Nexus Supply End-use Disposal

Melbourne’s Water Cycle Nexus

Source: Adapted from Natural Resources Defense Council March 2009

Minimal treatment

• Disinfection

• Fluoridation

• pH correction

• Sea water desal

Source: Photos courtesy of Melbourne Water

Thermodynamic processes:

• Heating

• Cooling

&

Water-Energy Nexus at

End Use

Targeted Programs

• Programs developed for specific equipment, processes or industry sectors

• Developing program ideas:

• Look for common equipment/processes across industry sectors

• See what customers have done already

• See what other water (and energy) utilities have done

• Partnerships

Steam System Efficiency Program Λ Scope: Improve water and energy efficiency of steam systems

Λ Cost: Total project $AUD230,000, including partner funding $AUD50,000

Λ Methodology:

Λ Provide free audits

Λ Train operators to identify improvement opportunities

Λ Produce reports quantifying water/energy/chemical savings

Λ Help customers to implement saving opportunities

Λ Savings identified:

Λ 239 ML (63.1 Mgal) water per year

Λ 187,000 gigajoules (1,772,418 therms) gas per year

Λ 1 0,400 tonnes CO2-e per year

Λ Implemented savings to date:

Λ 10 ML (2.6 Mgal) water per year

Λ 14,900 gigajoules (141,225 therms) gas per year

Λ 784 tonnes CO2-e per year

Λ Winner 2012 AWA National Program Innovation Award

Cooling Towers Efficiency Program

Λ Scope: To assist businesses to optimise water savings through self management rather than

capital investment

Λ Project Partners: Victorian government, Australian Institute of Refrigeration Air-conditioning and

Heating

Λ Outcomes:

Λ Free cooling tower efficiency assessments

Λ AIRAH training course

Λ Guidance material on water efficiency incorporated into

standard cooling tower operating procedures

Λ On-line calculator www.mycoolingtower.com.au

Λ Check-meters to optimise water efficiency

Λ Assessment outcomes integrated into waterMAPs

Λ Potential savings1.7 billion litres (0.45 billion gallons) per year

Λ Learnings:

Λ Cooling towers more inefficient in regional areas

Pre Rinse Spray Valves Λ Scope: Exchange inefficient PRSV using 10-15 litres/min to efficient PRSV using 4-6 L (1-1.6

gal) per min

Λ Cost: $AUD146,147 for 367 PRSV

Λ Technology: Fisher Rinse-maid spray valve

Λ Methodology:

Λ Identify customers with inefficient PRSV

Λ Plumber exchanged PRSV

Λ Savings:

Λ 23.9 ML (6.3 Mgal) per year

Λ 3,129 GJ (29,657 therms) per year

Λ 160 tonnes CO2-e per year

Λ Learnings:

Λ Customers requiring hose and adaptor exchanges were greater than anticipated

Λ Opportunities for “white certificates” for carbon reductions to improve business case

Showerhead Exchange

Λ Scope: Provide water efficient showerheads to businesses

Λ Cost: $AUD15 - 37 per showerhead

Λ Methodology:

Λ Provide free showerheads to customers

Λ Customer installs and return inefficient showerheads

Λ Potential offset on cost with “white certificates”

Λ Estimated savings:

Λ 11,500 showerheads exchanged

Λ 182 ML (48 Mgal) water per year

Λ 24,000 GJ (227,476 therms) gas per year

Λ Learnings:

Λ Showerheads provided to residential customers were not

always suitable for business customers (hospitals and

hotels)

Water and Energy Audits Λ Scope: Provide free water and energy audits to small businesses

Λ Cost: $AUD185 per audit

Λ Methodology:

Λ Leveraged other government programs to deliver water and energy efficiency audits

at no cost to the customers

Λ Engaged contractor to conduct audits

Λ Contractor produced report and obligation free quote

Λ Outcomes:

Λ 202 audits completed

Λ Identified water and energy savings 381 ML (101 Mgal) and 25.307 GWh per year

respectively

Λ Learnings:

Λ Customers don’t want to pay for an audit – no guarantee that opportunities will be

identified

Λ Most customers are time poor – practical advice important

Λ Risks engaging contractors but contractors use as opportunity for follow-up

business on installs

Resource Efficiency Assist

Λ Scope: Assist customers to improve water, energy and materials efficiency

Λ Project Partners: Australian Industry Group and Sustainability Victoria

Λ Methodology:

Λ High level business assessment

Λ Level 1 equivalent to focus on areas of greatest potential

Λ Master classes

Λ Showcasing (site tours)

Λ Learnings:

Λ Partnerships can enhance expertise of water utilities and deliver wider

benefits to customers

Co-funded Projects

• Co-funding for site specific projects

• Encourages implementation of projects by improving business case

• Low administrative burden

• Facilitated implementation of over 100 customer water efficiency projects

• Lifetime water savings over 28 billion litres (7.4 billion gallons)

• Leveraged customer funds more than 4:1

Moonee Valley Racing Club

Stormwater Harvesting

Λ Scope: Expanded stormwater harvesting system for

racetrack irrigation

Λ Cost: Total project $AUD344,760, CWW funding

$AUD172,380

Λ Payback: estimated 4.6 years, actual 2 years

Λ Savings:

Λ 60 ML (15.9 Mgal) water per year (estimated savings

were 42.7 ML per year)

Λ No potable water used for track irrigation this year

Λ Hard rubbish and nitrogen diverted from local creek

Encore Tissue

Wastewater Filtration System

Λ Scope: Installation of wastewater filtration system to make

water suitable for reuse in tissue making process

Λ Cost: Total project $AUD800,000, CWW funding

$AUD181,268

Λ Payback: estimated 2.1 years, actual 1.4 years

Λ Savings:

Λ 166 ML (43.9 Mgal) water per year (estimated savings

115 ML per year – production increase)

Λ 142 ML (37.5 Mgal) trade waste per year

Λ Recovery of paper fibres for reuse

O-I Glass

Cooling Tower Replacement Λ Scope: Replacement of existing cooling towers with those

that operate on ambient air temperature and variable

speed drives

Λ Cost: Total project $AUD443,000, CWW funding

$AUD195,000

Λ Payback: 3 years

Λ Savings:

Λ 22 ML (5.8 Mgal) water per year

Λ 440,000 kWh electricity per year

Λ 550 tonnes greenhouse gas emissions reduction

Λ Legionella risk reduced, chemical use eliminated

Λ Exceeding O-I’s global benchmark for water use

Tollman Chemicals

Clean In Place Λ Scope: Change tank wash method

Λ Cost: Total project $AUD18,500, CWW funding

$AUD5,500

Λ Technology: Fluid driven orbital high pressure

cleaning nozzle and high pressure pump

Λ Savings:

Λ 4.16 ML (1.1 Mgal) water per year

Λ 1 terajoule (9,480 therms) gas per year

Λ 50 tonnes CO2-e per year

Λ 1.5 tonnes TDS discharge per year

Λ 676 hours downtime per year

Sugar Australia

Phosphate Removal

Λ Scope: To install centrifuging process removing calcium phosphate in the effluent

Λ Cost: Total project $AUD850,000 with Government funding $AUD340,000

Λ Payback: 2 years

Λ Savings:

Λ 188 tonnes TDS/yr, ($4.5/ T)

Λ 51 tonnes of phosphate removed from WTP

Λ 13 ML (3.4 Mgal) potable water saved through

on-site reuse of “sweetwater”

Λ ‘Sweetwater’ for reprocessing

Λ Phosphate Cake suitable for composting

Oxford Cold Storage

Rainwater Harvesting

Λ Scope: Rainwater harvesting system to substitute with

potable water for use in the cooling towers

Λ Cost: Total cost $AUD1.22 million with CWW funding of

$AUD227,594

Λ Savings:

• Reduced water consumption despite 35% increase in

cooling capacity

• Water savings of 20 ML (5.3 Mgal) per year

101 Collins Street

Toilet Replacement Λ Scope: To replace single flush toilets with efficient dual flush toilets

Λ Cost: Total project $AUD750,000 with CWW funding $AUD150,000

Λ Payback: 15.3 years

Λ Savings:

Λ 14 ML (3.7 Mgal) water per year

Λ Similar volumes in sewage discharge

Thank You

Cameron FitzGerald

General Manager Service Sustainability

Cameron.FitzGerald@citywestwater.com.au

City West Water, Melbourne, Australia

www.citywestwater.com.au/business