Laura van wie panel 3 - moderator

Policy Summit Laura Van Wie McGrory October 4, 2011 Vice President, International Programs

Water and Energy Efficiency:The Next Big Thing

Energy and Water are Linked

Whenever water is lost to leaks, the energy and cost of energy embodied in that water is also lost.

Many distribution systems around the world are leaky- Industrialized countries: Old infrastructure

- Developing countries: 33-50% lost to leaks and system inefficiencies

Common emphasis on end-user conservation- In many countries most water is lost before it reaches the end

user

What is “WATERGY”?Alliance to Save Energy program that maximizes

efficiency of both energy and water Why is this important?

Each gallon in the system requires energy (~20% or > energy savings possible)

Water & energy efficiency frees up funding for other crucial public services

Mitigates risk in increasingly water-constrained environments Water savings can amplify return on investment Optimizing existing infrastructure forestalls the need to replace

equipment

What does a Watergy Project involve? An assessment of the main end use applications Assistance with design for energy efficiency An energy management plan/training for plant personnel Identification of financing mechanisms to enable implementation Outreach/recognition of efficiency achievements

Watergy: A Proven Strategy

Lake Victoria Watergy project Watergy in South African schoolsEE in Caribbean Water Utilities

Since 1997: has helped more than 100 cities in 16 countries

Kicked off in the U.S. in 2010 (Bucks County, PA) Watergy Program elements

• Improving Motor System Efficiency (pumps, blowers, grinders):• System Automation• Leak Management• Metering and Monitoring• Pressure management

PROBLEM: 80% of water flowing to homes lost through leaking main pipes and home plumbing fixtures!

TECHNICAL SOLUTION:TECHNICAL SOLUTION: Pressure ManagementPressure Management

• • Automated pressure management valves on each supply lineAutomated pressure management valves on each supply line

• • Reduced high bulk pressure; further reductions @ nightReduced high bulk pressure; further reductions @ night

• • $800,000 construction commissioned Sept 2005$800,000 construction commissioned Sept 2005

FINANCING SOLUTION:FINANCING SOLUTION: Performance ContractingPerformance Contracting

• • Water pressure management firm acting as ESCOWater pressure management firm acting as ESCO

• • Build-Operate-Train-Transfer to municipality after 5 yearsBuild-Operate-Train-Transfer to municipality after 5 years

• • Fees: firm gets 20% of savingsFees: firm gets 20% of savings

Case Study: Emfuleni, South Africa

• • Payback period: <3 months

• Annual Savings:

Money: US $ 3.8 million

Water: 2.1 billion gallons

a reduction of >30%

Energy: >14 million kWh

• CO2 Reductions:

12,000 tons/year

Emfuleni Results

Case Study: Bucks County Water & Sewer Authority

Located in eastern Pennsylvania

Created in 1962

$65 million in Annual Revenue

78,000 Retail Water and Sewer Customers

385,000 Wholesale and Retail Population Served in Bucks & Montgomery Counties PA

One of 27 PA water systems serving over 100,000 people

Nearly 1,000 of these large systems across the US

BCW&SA has grown by 300% over the last 15 Years through Acquisitions

BCWSA Energy Management Plan

1. Energy Management Practices• Energy management policy, budget & energy

manager

• Benchmark motor system energy use

2. Operational Measures• Reduce facility temperatures

• Cycle motor operation

• System repairs

3. Conservation Measures• Install controls

• Replace malfunctioning pumps

• Install Variable Frequency Drives

Proposed Solutions Pump control replacements Blower improvements Other mechanical and metering improvements Operator training and incorporating energy management

into SOPs, O&M manuals Financing packages from government, utility, and private

parties

Assessment Results Electric Energy Savings 4.1 million kWh Energy Cost Savings $361,000/yr Simple Payback 2.2 years (~ 45% ROI) Integrated energy management plan

Since its not Rocket Science, What are the Barriers to Adoption?

Culture of focusing on primary mission- Water demands and water quality mandates

Lack of data to evaluate solutions and awareness of energy markets in general- Workforce training needed

Financing- Many energy efficiency incentives do not benefit

water & wastewater utilities

- Unmet water supply & water quality capital needs

THANK YOU!

Alliance to Save Energy

www.ase.org

www.watergy.org