Illinois Electric Cooperative

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 If something here is out of date or missing, tell us and we'll fix it.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

Net metering & export

Net Metering Allowed
Yes
NEM Type
Monthly
TOU Utility
No
Post Solar Billing Method
Export Rate
Net Excess Generation Notes

When electricity flows from the members generation into the cooperatives system, the cooperative shall credit the members monthly statement for the number of kWh's/month which are in excess of the members electric consumption at the retail rate (ranges from $0.0859-$0.0092 - based on kWh delivery from cooperative) 

Rebates Offered
No
Deregulated
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
0
System Size Restriction Type
No Restrictions
System Size Battery Included
No
System Size Includes Existing Systems
No
Offset Type
Percentage
Offset Value
110
Offset Calculation Basis
Historical
Offset Calculation Period
12
Industry Standard Watts Sqft
2
System Offset Notes

Systems may not be sized over 110% of their previous 12 months usage, or they will not qualify for compensation for their excess power.

Offset Calc Tool
Historical Usage

Metering & disconnect

Production Meter Required
No
AC Disconnect Required
Yes
AC Disconnect Labeling
Utility Disconnect Switch

Plans & docs

Site Plan Reqs

Standard

SLD Reqs

Standard

Placards

Per utility "With placards, we’re only concerned that they have identification that a PV system is present and interconnected, and the location of disconnects"

Electrical Stamp Required
No
Equipment Approvals
California Energy Commission
Meter Num Req SLD 3LD
No
ESID Num Req SLD 3LD
No
Website
link
Compiled from public records, 2026. Tariffs and interconnection rules change; verify with Illinois Electric Cooperative 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.