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Western Illinois Elec Coop

Illinois Utility Interconnection & net metering rules
Net Metering Allowed0
Line Taps Allowed0
Load Taps Allowed0
AC Disconnect RequiredYes

Net metering & export

Net Metering Allowed
0
TOU Utility
0
Post Solar Billing Method
Export Rate
Solar Export Type
Avoided Cost
Solar Export Rate Approx
0.03
Solar Export Value Notes
Changes monthly/annually or as needed
Net Excess Generation Notes

With Net Billing, members using a renewable energy system first utilize their generated power at their location, getting full retail value for those generated kilowatt-hours (kWh). Any time the renewable energy system is producing more energy than the location is using, the excess energy is sent to WIEC electric grid. At the end of the month, WIEC pays the member for that excess energy at our on-peak wholesale energy rate which is set annually by Prairie Power Inc. (Current rate: $0.03 / kWh)

Rebates Offered
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
100
System Size Restriction Type
AC kW
System Size Battery Included
0
System Size Includes Existing Systems
0
Offset Value
0
Offset Calculation Period
0
Industry Standard Watts Sqft
2
Inverter Oversize Restrictions
0
System Offset Notes

100 kW AC or 110% offset of their historical usage, whichever is less

  • If 12 months of data is not available, the average amount of energy may be reasonably estimated by the Cooperative
  • The utility will inform the customer when they meet up with them what the maximum system size is allowable


Customers with electrical heating is not able to move forward with Solar. Please have the customer contact the utility. (Rates 40, 41, 403 and 413)

Offset Calc Tool
Historical Usage

Metering & disconnect

Production Meter Required
No
AC Disconnect Required
Yes
AC Disconnect Labeling
Visible Lockable Labeled Disconnect

Plans & docs

Equipment Approvals
California Energy Commission
Meter Num Req SLD 3LD
0
ESID Num Req SLD 3LD
0
Rate Schedule Link
link
Website
link
Phone
(800) 576-3125

Other details

Restrict Inspection
0
Revision Required
1
Mod Swap Requires Planset
1
Address ID
6802116
Express Planset Eligible
Yes
Compiled from public records, 2026. Tariffs and interconnection rules change; verify with Western Illinois Elec Coop 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.