PowerPoint Presentation

Proposal to Update Water Conservation 
Incentives for Glendale Water Customers
Glendale Water Services – September 27, 2022

Presentation Overview
Today’s workshop will provide information on changes 
to the existing rebate and creating new rebates.
We are seeking Council consensus on:
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CHANGES TO EXISTING REBATE
• Increase rebate amount for residential       
and non-residential customers
• Discontinue rebate for landscape water 
budget
• Include artificial turf
CREATE NEW REBATES
• High-Efficiency Toilet
• High-Efficiency Clothes Washer
• Smart Irrigation Controller
• Pool/Spa Removal
• Cooling Tower Water Management 
Technology

Landscape Rebate History
1986 – Council approved a $100 landscape rebate 
for residential customers
2005 – Council approved updates to the landscape 
rebate:
1. Increased rebate amount for residential customers (existing homes 
and new homes) 
2. Created a new rebate for non-residential customers
Over 5,600 residential and 55 non-residential 
customers have participated in the landscape rebate
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Current Landscape Rebate Dollar Amount 
RESIDENTIAL 
(EXISTING HOMES)
RESIDENTIAL 
(NEW HOMES)
NON-RESIDENTIAL
$150 to $750
•
Tiered rate 
dependent on the 
amount of grass 
converted to 
xeriscape
$200
•
Flat rate for xeriscape 
installation
Up to $3,000
• $150 per every 1,000 
square feet of grass 
converted to xeriscape
• $1,500 for landscape 
water budget
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Current Landscape Rebate Overview
Landscape rebate funds are $50,000 per fiscal year
Landscape rebate requirements:
• Glendale water customer
• Grass was converted to xeriscape in the past 12 months
• 75% of new plants must be low-water-use
• Artificial turf, bare soil, and impermeable surfaces don’t qualify
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Historical Landscape Rebate Data
Fiscal Year
Total 
Participants
Grass Conversion 
(square feet)
Rebate Dollars
FY18
112
211,163
$39,327
FY19
76
122,487
$25,122
FY20
57
98,309
$18,241
FY21
62
101,337
$19,782
FY22
67
121,881
$23,783
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Quantification of Grass Lawns in Glendale
Data: Phoenix Metropolitan Area Multi-City Water Use Study
45%
55%
No Grass
Some Grass
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Proposed Change to Landscape Rebate for 
Residential (Existing Home)
Grass Conversion 
(square feet)
Existing Rebate
Proposed Rebate
500 - 1,500
$150
$250 - $750
1,501 - 2,500
$300
$750.50 - $1,250
2,501 - 3,500
$450
$1,250.50 - $1,750
3,501- 4,500
$600
$1,750.50 - $2,250
4,501+
$750
Cap at $2,250
1. Change rebate funding from tiers to $0.50 per square foot of 
grass converted to xeriscape
2. Increase rebate cap from $750 to $2,250
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Proposed Changes to Landscape Rebate 
(Non-Residential)
1. Change rebate funding from flat rate to $0.50 per 
square foot of grass converted to xeriscape.
2. Discontinue $1,500 for landscape water budget 
since this is already a requirement to receive the 
rebate. 
3. Increase rebate cap from $3,000 to $5,000
Grass Conversion 
(square feet)
Existing Rebate
Proposed Rebate
1,000
$150 
$500
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Proposed Change to Include Artificial Turf in 
the Landscape Rebate 
$0.25 per square foot of grass converted to artificial 
turf (maximum of 1,000 square foot for Residential 
and Non-Residential).
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New Rebate - High-Efficiency Toilet*
WaterSense Certified Toilet - flushes no 
more than 1.28 gallons
Residential (Single-family)
• $100 per toilet
Residential (Multi-family)
• $100 per toilet
Non-Residential
• $100 per toilet
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*Estimated water 
savings of 13,000 
gallons/year.

New Rebate - High-Efficiency Clothes Washer* 
EnergyStar Labeled Clothes Washer
Residential (Single-family)
• $200 per washer
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*Estimated water savings 
of 5,000 gallons/year.

New Rebate – Smart Irrigation Controller*
WaterSense Certified Weather-based 
Irrigation Controller
Residential
• $150 per controller
Non-Residential – currently piloting 
this technology through a U.S. 
Bureau of Reclamation grant, 
which expires at the end of 
CY2023.
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*Estimated water savings of 
15,000 gallons/year.

New Rebate – Pool/Spa Removal
Pool/Spa Removal
Residential - $1.00 per square foot of 
water surface area converted to a desert 
landscape.
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*Estimated water savings of 
25,000 gallons/year.

New Rebate – Cooling Tower Water Management 
Technology
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Upgrades to existing cooling towers to provide better water 
management practices and installation of water-saving 
technologies
Non-Residential, Up to $1,000
• Remote read controllers
• Water monitoring and leak detection hardware 
• Conductivity controllers 
• Sub-meters
*15-20% estimated 
water savings.

Proposed Water Conservation Rebate Budget
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REBATE
RESIDENTIAL
NON-
RESIDENTIAL 
TOTAL
Landscape
$55,000
$15,000
$70,000
High-Efficiency Toilet
$10,000
$10,000
$20,000
High-Efficiency Clothes Washer
$10,000
$10,000
Smart Irrigation Controller
$6,250
Pilot Testing
$6,250
Pool/Spa Removal
$2,500
$2,500
Cooling Tower Water 
Management Technology
$5,000
$5,000
$113,750

Rebate Scenario for a Residential Customer
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REBATE 
TOTAL
Landscape Rebate 
(1,000 sq. ft. of grass converted to xeriscape)
$500
2 High-Efficiency Toilets
$200
1 High-Efficiency Clothes Washer
$200
1 Smart Irrigation Controller
$150
1 Pool Removal
(450 sq. ft. of pool converted to xeriscape)
$450
$1,500

Items for Consensus
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1. Changes to Existing Landscape Rebate
a. Increase rebate amount ($0.50 per square foot for xeriscape and $0.25 per 
square foot for artificial turf) for residential and non-residential customers
b. Discontinue rebate for landscape water budget
c. Include artificial turf
2. Create New Rebates
a. High-Efficiency Toilet
b. High-Efficiency Clothes Washer
c. Smart Irrigation Controller
d. Pool/Spa Removal
e. Cooling Tower Water Management and Efficiency Technology

Questions
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