PWP - Pasadena Water and Power

California Utility Interconnection & net metering rules

Spot something wrong?

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 If something here is out of date or missing, tell us and we'll fix it.

Report a correction
Net Metering AllowedYes
Line Taps AllowedNo
Load Taps AllowedNo
AC Disconnect RequiredYes

Net metering & export

Net Metering Allowed
Yes
Post Solar Billing Method
Net Metering
Rebates Offered
No
Allows Standby
Yes

Interconnection & taps

Approval Req To Install
Yes
Line Taps Allowed
No
Load Taps Allowed
No
Automatic Transformer Upgrade Size
0
Meter Aggregation Allowed
No

System size & offset

System Size Restrictions
0
System Size Restriction Type
No Restrictions
System Size Battery Included
No
System Size Includes Existing Systems
No
Offset Type
Percentage
Offset Value
100
Offset Calculation Basis
Historical
Offset Calculation Period
12
Industry Standard Watts Sqft
2
System Offset Notes

** System sizing is up to 100% of the homeowner’s historical usage, averaged from the past 3 years

If there’s less than 1 year of usage, you can use 2 watts/sqft to size your system.

Metering & disconnect

Production Meter Required
No
AC Disconnect Required
Yes
Allowed Meter Adapter
None

Plans & docs

Site Plan Reqs

** Production meter not required

** The AC Manual Utility Disconnect Switch is required for all solar installations and it must be installed within eight (8) feet and line of sight from the main service panel

SLD Reqs

** Production meter not required.

** The AC Manual Utility Disconnect Switch is required for all solar installations.

Electric Service Reqs

They only Except 100Amp & 200Amp for MPU & can be Solar Ready

Install Reqs

** Currently, PWP is not conducting in-person inspections of solar installations until further notice. Customers can, instead, submit photos of their installation for approval..

** If the submitted photos do not adequately represent the installation, PWP may decide to conduct an in-person inspection; although the customer and/or contractor is not required to be present.

** Performance meter not required. If install, please either remove socket or add a meter + lock ring + lock

Equipment Approvals
California Energy Commission
Rate Schedule Link
link
Website
link
Phone
(626) 744-6970

Other details

Revision Required
Yes
Compiled from public records, 2026. Tariffs and interconnection rules change; verify with PWP - Pasadena Water and Power 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.