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This presentation premiered at WaterSmart Innovations 2010
Join us this fall in Las Vegas, October , 2011
watersmartinnovations.com
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October 7,2010WSI Conference, Las Vegas
A Performance-Based Pilot Program in the San Diego Region
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Overview
1. Intro & Regional Program Highlights (Michelon)
2. CA’s Water-Energy Pilot Programs (Heppell)
3. Program Contractor Perspective (Bak)
4. Retail Utility Perspective (Jacoby)
5. Questions / Discussion
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San Diego County’s Water Sources
LAKESHASTA
LAKEOROVILLE
State Water Project 28%
Colorado River 54%
Local Resources 18%
San Diego County imports more than 80%
of its water supply
3
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San Diego County Water Authority
24 member agencies
3 million people
920,000 acre service area
97% of county’s population
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Governor declares drought in June 2008 & utilities adopt Drought Ordinances
New statewide Model Landscape Ordinance
Governor calls for 20% reduction in water use (SBX7-7)
Statewide Water Conservation Actions
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Managed Landscape Program Highlights
1. Applies energy sector’s “measured savings” model
2. Objective: better irrigation control – applies CA Prop 13 WBIC lessons
1. Program targeted at high water users
2. Guaranteed Performance:
> % of sites that saved water: 100% (vs. 57% with lower Appl. Ratio)
> Average savings per site: guaranteed min. of 20% (vs. 6%)
3. Implementation Method: Outsourced turn-key service to contractor
4. Key take-away: “You get what you ask for”
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California’s consumption of water-related energy represents:
19% of the state’s electricity
30% of its natural gas
88 billion gallons of diesel fuel
… and the demand is growing!
Water Agencies Are the Largest Energy End-Users
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Energy Commission’s 2005 Water Energy Report
• California’s regulated energy utilities were asked to do more to promote water conservation
• Model the success of California’s energy efficiency programs
•
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10
California’s per capita energy consumption has remained relatively flat since 1973
CA Per Capita Energy Consumption
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In 2007, California’s Public Utilities Commission asked the four larger state energy utilities to develop Water/Energy Pilot programs.
Develop partnerships with water agencies
Undertake jointly-funded water conservation programs
Evaluate and measure the results
If cost-effective energy and water savings can be demonstrated, water conservation programs could be added to energy efficiency portfolios
California’s Water/Energy Pilot Programs
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The pilot programs were to focus on cold water energy savings (production, transportation, use, treatment, and disposal)
Three Water/Energy Pilot programs were developed in SDG&E’s service territory
SDG&E and SDCWA worked together to develop the Managed Landscapes pilot’s specific goals and expected results. The decision was made to outsource the program and an RFP was issued
California’s Water/Energy Pilot Programs (Cont’d)
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Program Contractor Perspective
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Managed Landscape Program (MLP) Goals
Achieve minimum of 20% savings on large landscapes
Water2Save, LLC’s scope of services for MLP project included:
– Identify and recruit properties with savings potential throughout San Diego County
– Install and operate remote water management & wireless data communications equipment
– Manage 1 year of operation at each participant site
– Monitor water usage during project participation
© WaterLink Systems, Inc. 2010. All rights reserved.
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Managed Landscape Program - Operated by Water2Save
© WaterLink Systems, Inc. 2007. All rights reserved.
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© WaterLink Systems, Inc. 2010. All rights reserved.
Variety of Property Types
HOA’s, apartment communities, commercial, schools
Landscape sizes varied from 2 to 11 irrigated acres
3 to 10 remote water managements units installed per participant site
Variety of Locations/Climate Zones
City of San Diego Water District, Otay Water District, Vallecitos Municipal Water District, and City of Poway
San Marcos to Chula Vista, La Jolla to El Cajon
Profile of MLP Participants (13 Sites)
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Location of Participants within San Diego County
Climate Zones
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© WaterLink Systems, Inc. 2010. All rights reserved.
Program Results
Water Savings Performance: All participants surpassed 20% savings threshold
Average savings of 36% compared to previous 4-5 year historical averages
Total Water Saved:
155 AFY / 67,500 Hundred Cubic Feet / 50.5 Million Gallons
Participant Retention:
84% upon project completion
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Retail Agency Perspective
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Retail Water Agency Benefits of Participation
Agency benefits from having customer participation
Customers benefit from decreased consumption and lower bills
Opportunity to “test drive” a potential service to customers
Option to recommend service to other customers
Potential ability to realize urgent usage reductions with one or more organizations that control multiple meters and many sites
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Retail Agency Program Implementation Support
Coordinate with service provider to identify customers who would possibly benefit from the program
Provide timely and regular consumption histories for participating customers
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Water Management vs. Water Restrictions
Level 2 Mandatory Restrictions
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Water Waste Restrictions - Level 2
Irrigate 3 designated days a week
Maximum of 10 minutes for typical fan spray (7 min. winter) unless system is regulated by a Weather Based Controller
Water Management vs. Water Restrictions
Revisions to Drought Response Ordinance:“proposed alternative water use restrictions for
the property would result in greater water saving
than the existing water use restrictions”
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Conclusions
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Preliminary Cost-Effectiveness Estimates
$200
$400
$600
$800
$1,000
$1,200
$1,400
Year 1 Year 2 Year 3 Year 4 Year 5 Year 6 Year 7
Cos
t of W
ater
Per
Acr
e-Ft
Sav
ed
With 100% Retention With 84% Retention
With 74% Retention
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Contact Information
Agency Name Email
SDCWA Carlos Michelon [email protected]
SDG&E Janis Heppell [email protected]
Water2Save Stephen Bak [email protected]
City of San Diego,Public Utilities
JoEllen Jacoby [email protected]
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Questions & Discussion