Waterloo Utilities

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 If something here is out of date or missing, tell us and we'll fix it.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

Net metering & export

Net Metering Allowed
Yes
NEM Type
Monthly
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 and 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
Yes
Deregulated
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
0
System Size Restriction Type
No Restrictions
System Size Battery Included
No
System Size Includes Existing Systems
No
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

"Site plan that shows:

- Street address of DG facility

- Adjoining street name

- Electric service entrance

- Electric meter

- Interface equipment

- Location of major equipment

- Location of interconnect disconnect

switch (if required)"

SLD Reqs

"One-line wiring diagram shall include:

- Generator or inverter

- Point where DG facility is electrically connected

to the customer’s electrical system

- Point of common coupling

- Lockable interconnection disconnect switch

(outside, if required)

- Method of grounding, including generator

transformer ground connections

- Protection function and systems"

Install Reqs

Utility Inspection Required

All installations shall include equipment circuit breakers, on the DG facility side of the point where the DG facility is electrically connected to the customer’s electrical system, that are capable of interrupting the maximum available fault current. Equipment circuit breakers shall meet all applicable UL, ANSI, and IEEE standards.

Placards

The applicant shall label the interconnection disconnect switch “Interconnection Disconnect Switch” by means of a permanently attached sign with clearly visible and permanent letters. The applicant shall provide and post its procedure for disconnecting the DG facility next to the switch.

Equipment Approvals
California Energy Commission
Website
link
Phone
(920) 478-2260
Compiled from public records, 2026. Tariffs and interconnection rules change; verify with Waterloo 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.