Oconomowac Utilities

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 If something here is out of date or missing, tell us and we'll fix it.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

Net metering & export

Net Metering Allowed
Yes
NEM Type
Monthly
TOU Utility
No
Post Solar Billing Method
Net Metering
Net Excess Generation Notes
"The customer shall be billed monthly on a net energy basis and shall pay the fixed charge
energy charge specified in the rate schedule under which he is served.
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
No
Deregulated
No

Interconnection & taps

Approval Req To Install
Yes
Supply Side Taps Allowed
No
Line Taps Allowed
No
Load Taps Allowed
No
Automatic Transformer Upgrade Size
0

System size & offset

System Size Battery Included
No
System Size Includes Existing Systems
No
Offset Value
0
Offset Calculation Period
0
Industry Standard Watts Sqft
2
System Offset Notes
Oconomowoc Utilities doesn’t have any size restrictions on the size of distributed generation however the purchase of excess generation (energy not used by the owner/customer that is put back into the local distribution network) by Oconomowoc Utilities is determined by the size of the DG installation
Offset Calc Tool
Historical Usage

Plans & docs

Site Plan Reqs
Site plan showing major equipment, electric service entrance, electric meter(s), location of distributed generation and interface equipment,
protection equipment, location of disconnect switch (if required), adjoining street name, and street address of the distributed generation system.
SLD Reqs
One-line Schematic Diagram of the System that includes the distributed generation equipment, interconnection disconnect switch (if required),
point of interconnection, meter(s), protection equipment and associated instrumentations
Electric Service Reqs
Please see PSC 119.20 General design requirements. 1-14
Install Reqs
Please see PSC 119.20 General design requirements. 1-14
Placards
"The applicant shall label the interconnection disconnect
switch “Interconnection Disconnect Switch” by means of a per-
manently attached sign with clearly visible and permanent letters. The applicant shall provide and post its procedure for disconnect-
ing the DG facility next to the switch."
Equipment Approvals
California Energy Commission
Website
link
Compiled from public records, 2026. Tariffs and interconnection rules change; verify with Oconomowac 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.