Draft 2025 Urban Water Management Plan

Table 6 - 10. DWR Submittal Table Energy Intensity

Optional Submittal Table O-1A: Recommended Energy Reporting - SINGLE DELIVERY PRODUCT - WATER SUPPLY PROCESS APPROACH Water Delivery Product drop down list (If delivering more than one type of product recommend using Table O-1C)

Multiple Products (if unable to use table O-1C) 7/1/2024 6/30/2025

Only for Water Delivery Products Under the Urban Water Supplier's Operational Control

Start Date of Reporting Period

Non-Consequential Hydropower (if applicable)

End Date of Reporting Period Is upstream embedded energy included in the values reported?

Water Management Process

Total Utility See DWR NOTES

Units for Water Volume

Place into Storage

Extract and Divert

Conveyance Treatment Distribution

Hydropower

Net Utility

Volume of Water Entering Process Energy Consumed (kWh) Energy Intensity (kWh/vol. converted to MG)

AF N/A N/A

89,980

89980

127,859,874

127,859,874

0.0

0.0

0.0

0.0

0.0

4360.9

0.0

4360.87

DWR NOTES: Total Utility: The volume of water entered in the “Total Utility” column should equal the volume of water entering the distribution system (excluding recycled water); in most cases, this is the total volume calculated in UWMP Table 4-1: 2025 Actual Total Uses for Potable and Non-Potable Water. Note if recycled water is included in your Submittal Table 4-1, you must exclude it from your volume in thi tbl

Quantity of Self-Generated Renewable Energy 1,701,538 kWh Data Quality (Estimate, Metered Data, Combination of Estimates and Metered Data) Metered Data Data Quality Narrative:

Narrative: The overall IRWD energy use data was gathered using Utility API, a service that provides Southern California Edison energy use and cost data in excel files on a monthly basis. The quanitity of self-generated renewable energy from our 1 MW solar array was reported back to us by the third-party owners of the renewable system as part of requirements stipulated in our power purchase agreement. Water use data was gathered from a spreadsheet entitled "Irvine Ranch Water District Water Purchased/Delivered FY 2024-2025" that tracks potable and non-potable water used by fiscal year. IRWD is Orange County's largest retail water district, providing water and sewer service to more than 100,000 homes and businesses throughout Irvine and portions of Lake Forest, Tustin, Newport Beach, Costa Mesa, Orange, and unincorporated Orange County. For a description of the key energy-consuming facilities in our delivery and treatment systems please go to: https://www.irwd.com/construction/facilities-construction NOTES:

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IRWD – 2025 Urban Water Management Plan

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