Solar Sanity Checksolar, decoded Independent. Nothing you type leaves your browser.

Yellowstone Valley Electric Cooperative

Montana Utility Interconnection & net metering rules
Net Metering Allowed1
NEM TypeAnnual
Line Taps Allowed0
Load Taps Allowed0
AC Disconnect RequiredYes

Net metering & export

Net Metering Allowed
1
NEM Type
Annual
TOU Utility
0
Post Solar Billing Method
Net Metering
Net Excess Generation Notes

After each monthly billing cycle, any excess kilowatt-hours generated are placed into a bank on the customers electric account. Based on the energy usage, banked kilowatt-hours will automatically be deducted from the account up to April 1

Rebates Offered
0
Deregulated
1
Allows Standby
0

Interconnection & taps

Approval Req To Install
Yes
Interconnection Level
3
Line Taps Allowed
0
Load Taps Allowed
0
Automatic Transformer Upgrade Size
0
Meter Aggregation Allowed
0

System size & offset

System Size Restrictions
10
System Size Restriction Type
DC kW
System Size Battery Included
0
System Size Includes Existing Systems
0
Offset Value
0
Offset Calculation Period
0
Industry Standard Watts Sqft
2
System Offset Notes

100% offset or 10 kW DC (whichever is less). System may not exceed 10 kW DC but may exceed the 100% offset reasonably.

Offset Calc Tool
Historical Usage

Metering & disconnect

Production Meter Required
No
AC Disconnect Required
Yes
AC Disconnect Labeling
Utility Disconnect Switch
Allowed Meter Adapter
None

Plans & docs

Site Plan Reqs
  • Disconnect switches near the meter are required. If it cannot be installed near the meter, a mapping placard of its location is required.
SLD Reqs

Standard

Electric Service Reqs

AC Disconnect Required

  • Accessible, visible and lockable disconnect switch is to be provided by the member in an appropriate curcuit which is lockable in the open position only.
  • Must be located at the members electric meter
  • Clearly marked "Generator Disconnect Switch"
Install Reqs
  • Powering a system (including testing) is NOT permitted before we program (cogen) the meter , this will result in a tampering and meter fee.
Placards

AC Disconnect:

  • Clearly marked “Generator Disconnect Switch” on a weather resistant placard.
Electrical Stamp Required
0
Equipment Approvals
California Energy Commission
Meter Num Req SLD 3LD
0
ESID Num Req SLD 3LD
0
Website
link
Phone
(406) 348-3411

Other details

Restrict Inspection
1
Revision Required
1
Mod Swap Requires Planset
1
Address ID
4777895
Express Planset Eligible
Yes
Compiled from public records, 2026. Tariffs and interconnection rules change; verify with Yellowstone Valley 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.