MidAmerica Energy Co

Illinois Utility Interconnection & net metering rules

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Net Metering AllowedYes
NEM TypeAnnual
Line Taps AllowedYes
Load Taps AllowedNo

Net metering & export

Net Metering Allowed
Yes
NEM Type
Annual
Post Solar Billing Method
Net Metering
Solar Export Type
Fixed kWh
Net Excess Generation Notes

With net metering, energy delivered to MidAmerican at the metering location is subtracted from the energy consumed (kWh consumed minus kWh delivered). If a customer consumes more energy than they deliver, the resulting net kilowatt-hour is billed to the customer at the same electric rate at which the customer normally purchases their energy from MidAmerican. If the customer delivers excess energy to MidAmerican's electric distribution system during the billing period, net metering provides the customer energy and/or delivery credits that can be stored in the customer's account for future use in subsequent billing periods. These excess credits expire based on the annual period (April or October) the customer selects in the Net Metering Application.

Rebates Offered
Yes
Deregulated
Yes
Allows Standby
No

Interconnection & taps

Approval Req To Install
Yes
Line Taps Allowed
Yes
Load Taps Allowed
No
Tap Criteria

Taps are NOT allowed in Meter Can or Utility owned equipment

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
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

Electric Service Reqs

System Sizing:

There is no limit on system size as long as it passes the Illinois technical screens described in the state interconnection rules. 2,000 kW is the largest generator size eligible for net metering

Install Reqs

** MidAmerican performs a witness test of the generator prior to returning the Certificate of Completion. Either the customer or their contractor would need to meet MidAmerican onsite for the witness test.

** NEC requirements generally apply for most clearances. See MidAmerican’s Electric Service Manual for meter and service-related requirements:

** Per the State of Illinois interconnection rules. Screening is based on the AC system sized. IL Rules: http://www.ilga.gov/commission/jcar/admincode/083/08300466sections.html

Rate Schedule Link
Tariff and rate schedule information is available upon request.
Website
link
Phone
877-815-0010

Other details

Revision Required
No
Mod Swap Requires Planset
Yes
Compiled from public records, 2026. Tariffs and interconnection rules change; verify with MidAmerica Energy Co 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.