Glacier Electric Cooperative

Montana 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 If something here is out of date or missing, tell us and we'll fix it.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
NEM TypeAnnual
Line Taps AllowedNo
Load Taps AllowedNo
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

Glacier Electric utilizes an annual true up on December 31st of each year. Power generated in excess of the actual load at the location will not be purchased by the cooperative or credited to the meter after the annual true up period. Excess generation will be credited at the avoided cost (not provided)

Rebates Offered
No
Deregulated
Yes
Allows Standby
No

Interconnection & taps

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

System size & offset

System Size Restrictions
15
System Size Restriction Type
AC kW
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
No
Offset Calc Tool
Historical Usage

Metering & disconnect

Production Meter Required
No
Production Meter Position
N/A
Production Meter Labeling
N/A
AC Disconnect Required
Yes
AC Disconnect Labeling
Utility Disconnect Switch
Allowed Meter Adapter
None

Plans & docs

Equipment Approvals
California Energy Commission
Meter Num Req SLD 3LD
No
ESID Num Req SLD 3LD
No
Website
link
Phone
(406) 873-5566

Other details

Revision Required
Yes
Mod Swap Requires Planset
Yes
Compiled from public records, 2026. Tariffs and interconnection rules change; verify with Glacier Electric Cooperative 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.