Testing Utility

California Utility Interconnection & net metering rules

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Tariffs and interconnection rules move often. If something here is out of date or missing, tell us and we'll fix it.

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Net Metering AllowedYes
Supply Side Taps AllowedYes
Line Taps AllowedYes
Load Taps AllowedYes

Net metering & export

Net Metering Allowed
Yes
TOU Utility
Yes
Rebates Offered
Yes

Interconnection & taps

Approval Req To Install
Yes
Supply Side Taps Allowed
Yes
Line Taps Allowed
Yes
Load Taps Allowed
Yes
Automatic Transformer Upgrade Size
0
Meter Aggregation Allowed
Yes

System size & offset

System Size Battery Included
No
System Size Includes Existing Systems
No
Offset Value
0
Offset Calculation Period
0
Industry Standard Watts Sqft
2
Inverter Oversize Restrictions
Yes
Restriction Percent
15
Offset Calc Tool
EPBB

Plans & docs

Site Plan Reqs
Utility Approval Required for Install? Meter Aggregation Allowed? Load Justification?
SLD Reqs
- 4 - 5 - 6
Electric Service Reqs
- 7 - 8 - 9
Install Reqs
- 10 - 11 - 12
Placards
- 13 - 14 - 15
Equipment Approvals
California Energy Commission
Rate Schedule Link
link
Website
link
Phone
(123) 456-7890
Compiled from public records, 2026. Tariffs and interconnection rules change; verify with Testing Utility before you rely on this. The useful move: if an installer says you need a main panel upgrade, ask how these tap and interconnection policies were considered first.