Panel Permits: Palo Alto vs Sunnyvale
How do panel permits rules compare between Palo Alto, CA and Sunnyvale, CA?
Palo Alto and Sunnyvale have similar restriction levels.
Palo Alto, CA
Santa Clara County
Palo Alto strongly supports residential solar with online SolarAPP+ permitting, Title 24 solar mandate compliance for new homes, and CPAU net energy metering programs.
View full Palo Alto rules →Sunnyvale, CA
Santa Clara County
Sunnyvale offers online solar permits under AB 1236 and SB 379. Residential rooftop PV typically earns same-day approval. Title 24 Solar Mandate requires solar on most new homes.
View full Sunnyvale rules →Key Facts Comparison
| Fact | Palo Alto | Sunnyvale |
|---|---|---|
| Permit Platform | SolarAPP+ same-day | - |
| Title 24 | Mandatory on new residential | - |
| Net Metering | CPAU favorable tariff | - |
| Storage Setbacks | CRC 7A fire standards | - |
| Historic Review | HRB for designated districts | - |
| Legal basis | - | AB 1236 + AB 379 |
| System cap | - | Expedited under 15 kW |
| Title 24 mandate | - | Solar on new homes |
| Batteries | - | Separate permit; fire review |
| Inspection | - | Grounding, labels, rapid shutdown |
Highlighted rows indicate differences between cities.
Palo Alto FAQ
How long does a solar permit take?
Most residential rooftop solar permits in Palo Alto are issued same-day through SolarAPP+ automated review. Complex or historic projects may take longer.
Is Palo Alto NEM better than PG&E NEM 3.0?
Yes, because Palo Alto is a municipal utility (CPAU), it sets its own net metering policy independent of CPUC NEM 3.0 rules that apply to PG&E customers.
Sunnyvale FAQ
How fast is a solar permit in Sunnyvale?
Most residential systems under 15 kW are approved online in one business day via SolarAPP+ or the Sunnyvale portal.
Do I need solar on a new home?
Yes. Title 24 Part 6 requires solar PV on most newly constructed California single-family homes.
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