Pacific Power (WA)

Washington Utility Interconnection & net metering rules

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Net Metering AllowedYes
NEM TypeAnnual
Line Taps AllowedYes
Load Taps AllowedYes
AC Disconnect RequiredYes

Net metering & export

Net Metering Allowed
Yes
NEM Type
Annual
TOU Utility
No
Post Solar Billing Method
Net Metering
Net Excess Generation Notes

If the electricity generated by the Member and distributed back to Avista during the billing period, exceeds the electricity supplied by Avista, then the Member shall be credited for the net excess kilowatt-hours generated during the billing period, with this kilowatt-hour credit appearing on Member’s bill. At the end of the 12 months, unused kWh will be granted to Avista with no compensation to the customer

Rebates Offered
No
Deregulated
No

Interconnection & taps

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

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
Offset Calc Tool
Historical Usage

Metering & disconnect

Production Meter Required
No
AC Disconnect Required
Yes
AC Disconnect Labeling
Visible Lockable Labeled Disconnect
Allowed Meter Adapter
ConnectDER,Tesla Backup Switch

Plans & docs

Site Plan Reqs

Standard -

SLD Reqs


Electric Service Reqs

AC Disconnect Required

  • Two manual-operated, unitized load-break disconnect switches located near the POI are required. The switches shall be used to establish visual-open working clearance for maintenance and repair work in accordance with PacifiCorp rules and practices
  • The first switch shall be located on the PacifiCorp side of the meter structure (see Figure C1, MDS1). This switch will be owned, operated, and maintained by PacifiCorp
  • The second switch, located on the customer side of the meter structure (see Figure C1, MDS2) will be owned and maintained by the customer and operated by PacifiCorp. PacifiCorp personnel shall inspect and approve the installation before parallel operation is permitted. If the disconnect device is in the Interconnection Customer's substation, it shall be located on the substation dead-end structure. The second switch must be: accessible to PacifiCorp personnel • capable of being locked in the open position • located within sight and within 3 feet of the utility meter or at a PacifiCorp-approved location with acceptable signage at the utility meter indicating the location of the disconnect • chosen from PacifiCorp’s list of approved materials • gang-operated
Placards

Placard Requirements uploaded to files (Engraved_Placard_Examples.pdf (pacificpower.net))

  • Lettering should be 3/8 inches high on all placards
  • Placards should have a red background with white lettering
  • Sizing may be adjusted to fit Meter Base and AC Disconnect Switch
Electrical Stamp Required
No
Equipment Approvals
California Energy Commission
Meter Num Req SLD 3LD
No
ESID Num Req SLD 3LD
No
Website
link

Other details

Revision Required
Yes
Mod Swap Requires Planset
Yes
Compiled from public records, 2026. Tariffs and interconnection rules change; verify with Pacific Power (WA) 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.