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Hartford Electric & Water (Hartford Utilities)

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

Net metering & export

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

For systems 20 kW or less, any energy exported to the grid will be credited at the full retail rate. At the end of each billing cycle, if there is a remaining credit balance, it will over indefinitely until it is fully used. If the credit balance exceeds $25, the customer has the option to request a payout.

Rebates Offered
1
Deregulated
0
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
20
System Size Restriction Type
AC kW
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
AC Disconnect Required
Yes
AC Disconnect Labeling
Visible Lockable Labeled Disconnect
Allowed Meter Adapter
None

Plans & docs

Site Plan Reqs

- Street address of DG facility

- Adjoining street name

- Electric service entrance

- Electric meter

- Interface equipment

- Location of major equipment

- Location of interconnect disconnect switch

SLD Reqs

- 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)

- Method of grounding, including generator and transformer ground connections

- Protection function and systems

Meter Num Req SLD 3LD
0
ESID Num Req SLD 3LD
0
Electrical Diagram Notes


Rate Schedule Link
link
Website
link
Phone
(262) 670-3700

Other details

Restrict Inspection
0
Revision Required
1
Mod Swap Requires Planset
1
Address ID
167389
Express Planset Eligible
Yes
Compiled from public records, 2026. Tariffs and interconnection rules change; verify with Hartford Electric & Water (Hartford 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.