City of Naperville Electric Utility

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 If something here is out of date or missing, tell us and we'll fix it.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

Net metering & export

Net Metering Allowed
Yes
Post Solar Billing Method
Net Metering
Rebates Offered
Yes
Deregulated
No
Allows Standby
Yes

Interconnection & taps

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

System size & offset

System Size Restrictions
10
System Size Restriction Type
DC kW
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
Offset Calc Tool
PV Watts

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

AC Disconnect within 2' of the electric meter.

SLD Reqs

Checklist requires single line* AHJ will need to be contacted to determine if 3LD is also acceptable


"Supply side connections are limited to detached or duplex single-family housing types with a service size of 200A or less


Supply side connections can only be made using a MILBANK lug K4977 or approved equipment "

Equipment Approvals
California Energy Commission
Website
link
Phone
(630) 420-6181
Compiled from public records, 2026. Tariffs and interconnection rules change; verify with City of Naperville Electric Utility 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.