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Mount Horeb Utilities

Wisconsin Utility Interconnection & net metering rules
Net Metering Allowed1
NEM TypeMonthly
Line Taps Allowed0
Load Taps Allowed0

Net metering & export

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

If in any month, the customer’s bill has a credit balance of $25 or less, the amount shall be credited to subsequent bills until a debit balance is reestablished. If the credit balance is more than $25, the utility shall reimburse the customer by check upon request. Monthly credits shall be computed by taking the net excess kilowatt-hours produced times the sum of the applicable energy charge plus monthly power cost adjustment clause (PCAC).

Rebates Offered
1

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
1

System size & offset

System Size Restrictions
0
System Size Restriction Type
No Restrictions
System Size Battery Included
0
System Size Includes Existing Systems
0
Offset Type
No Restrictions
Offset Value
0
Offset Calculation Period
0
Industry Standard Watts Sqft
2

Metering & disconnect

Production Meter Required
No
Production Meter Position
N/A
Production Meter Labeling
N/A
Allowed Meter Adapter
None

Plans & docs

Site Plan Reqs
  1. Street address must match utility bill record
  2. Adjoining street name must be visible
  3. Electric service entrance
  4. Electric meter
  5. Interface equipment
  6. Location of major equipment
  7. Location of interconnect disconnect switch


AC Disconnect Notes:

The Public Utility may require that the Applicant furnish and install an interconnection disconnect switch that opens, with a visual break, all ungrounded poles of the interconnection circuit. The interconnection disconnect switch shall be rated for the voltage and fault current requirements of the DG Facility, and shall meet all applicable UL, ANSI, and IEEE standards, as well as applicable requirements of the Wisconsin Electrical Safety Code, Volume 2, Chapter Comm 16. The switch enclosure shall be properly grounded. The interconnection disconnect switch shall be accessible at all times, located for ease of access to Public Utility personnel, and shall be capable of being locked in the open position. The Applicant shall follow the Public Utility's recommended switching, clearance, tagging, and locking procedures. 

SLD Reqs
  1. Generator or inverter
  2. Point where DG facility is electrically connected to the customer's electrical system
  3. Point of common coupling
  4. Lockable interconnection disconnect switch
  5. Method of grounding, including generator and transformer ground connections
  6. Protection function and systems


The DG Facility shall be installed in compliance with Wisconsin Administrative Code Chapter PSC 119

Electric Service Reqs



Commissioning Test Notes:

Applicant shall notify Public Utility in writing that installation of the DG Facility is complete and that the interconnection equipment is available for testing by Public Utility at least fifteen (15) working days before Applicant interconnects the DG Facility with Public Utility's Distribution System. Public Utility shall thereupon have the right to test the DG Facility. Public Utility shall also have the right to witness any testing by Applicant of the DG Facility. Any Public Utility testing of the DG Facility shall be completed within ten (10) working days. If Public Utility waives its right to test the installed DG Facility by notifying Applicant in accordance with this Section, Applicant may interconnect the DG Facility to Public Utility's Distribution System upon the earlier to occur of the following: (a) notification by Public Utility; or (b) fifteen (15) working days after Applicant has notified Public Utility that installation of the DG Facility is complete. 

Placards

AC Disconnect must be clearly labeled.

Website
link
Phone
(608) 437-3084

Other details

Restrict Inspection
1
Revision Required
1
Address ID
166832
Express Planset Eligible
Yes
Compiled from public records, 2026. Tariffs and interconnection rules change; verify with Mount Horeb Utilities 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.