What was permitted
For homeowners in San Jose's Alum Rock neighborhood interested in renewable energy solutions, a permit has been issued for a stationary storage battery installation at 3521 Madeline Dr. This project involves electrical work for the system.
This permit was issued on May 1, 2026, and is for building and electrical work related to a stationary storage battery (ESS, BBI). COBALT POWER SYSTEMS INC is the contractor for this installation. The project cost is not reported.
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View the official permit record
Tracking number, work description, cost and dates
View the official permit record
Tracking number, work description, cost and dates
| Tracking number | 2026-116009-SI |
|---|---|
| Work permit # | — |
| Job filing number | — |
| Work type | Stationary Storage Battery · 1 & 2 Family Residential |
| Status | Active |
| Job description | Building, Electrical work: ESS,BBI |
| Floor / unit | — |
| Estimated cost | Not reported |
| Approved | — |
| Issued | May 1, 2026 |
| Expires | — |
| BBL | — |
| BIN | — |
Property owner
Nguyen Hoang And Duong Pauline
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