Ontario · San Bernardino County · 2 Tesla Powerwall 3 units · Backup Switch
Dual Powerwall 3 in Ontario
A completed Ontario residential project with two Tesla Powerwall 3 units, a Backup Switch, and SCE Permission to Operate.
2 Tesla Powerwall 3 units
Storage
Tesla Backup Switch
Backup equipment
SCE PTO · Oct. 25, 2024
Utility approval
The completed SCE project
OC Solar's completed-project record identifies this as a residential solar-and-battery project in Ontario. Its equipment record verifies two Tesla Powerwall 3 units and a Backup Switch on Southern California Edison service.
The installation was completed on July 24, 2024, and the project received SCE Permission to Operate on October 25, 2024. The source record's solar-module fields are blank, so this case study publishes only the verified storage equipment and milestones. Customer name, street address, financial information, savings, and production estimates are intentionally excluded.
Why two batteries change the design
Two Powerwall 3 units can provide more stored energy and discharge capability than one unit, but the usable backup plan still depends on the home's load selection, reserve setting, equipment configuration, and household consumption. No backup-duration or bill-savings estimate is inferred from the project record.
Representative of OC Solar's 6,373 Southern California projects & service calls. System size, equipment, and timelines vary by home; figures shown are project specifications, not guaranteed savings.
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Licensed, Bonded & Insured · CSLB #1023627