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Cairo Public Utility Company

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

Net metering & export

Net Metering Allowed
1
NEM Type
Annual
TOU Utility
0
Post Solar Billing Method
Net Metering
Solar Export Type
Avoided Cost
Net Excess Generation Notes

For multi-unit residential and commercial buildings, if all units are on the same account, it qualifies as a single customer for purposes of the policy. If individual units are separately metered, and individual tenants have individual accounts, then the term “customer” only refers to the building owner and any usage by the owner. 

Energy generated by the customer-owned generator during the billing period may supply all or a portion of the energy required by the customer’s load. The customer shall be credited for excess energy delivered by the customer to Cairo Public Utility Company at the meter from the approved on-site generating facility. 

For any energy generated by the customer in excess of the energy required by the customer’s loads for a given billing period a credit shall be carried forward to the customer’s next billing period.  

The annual period shall end each year on April 30; provided however for new net metering customers with generating facilities installed during an annual period, the annual period shall end on April 30 of the following year.

Rebates Offered
1
Deregulated
1

Interconnection & taps

Approval Req To Install
Yes
Interconnection Level
3
Line Taps Allowed
0
Load Taps Allowed
0
Automatic Transformer Upgrade Size
0

System size & offset

System Size Battery Included
0
System Size Includes Existing Systems
0
Offset Value
0
Offset Calculation Period
0
Industry Standard Watts Sqft
2
System Offset Notes
  • The customer’s energy usage will be analyzed using 36-months of historical energy usage (if available) in order to calculate the customer’s expected annual usage. 
  • If a customer provides documentation specifying why the usage has increased over that time, such as home renovation/addition or installation of electric heating or an electric vehicle charging station on the premises, then the previous 12-month period shall be used to determine the average for the expected annual usage.
Offset Calc Tool
Historical Usage

Metering & disconnect

Production Meter Required
No
AC Disconnect Required
Yes
AC Disconnect Labeling
Visible Lockable Labeled Disconnect
Allowed Meter Adapter
None

Plans & docs

Site Plan Reqs
  • AC disconnect must be accessible to the utility 24/7
SLD Reqs
  • A sample line diagram is available in the database files
Meter Num Req SLD 3LD
0
ESID Num Req SLD 3LD
0
Website
link
Phone
(618) 734-3200

Other details

Restrict Inspection
0
Revision Required
0
Mod Swap Requires Planset
1
Address ID
1304406
Express Planset Eligible
Yes
Compiled from public records, 2026. Tariffs and interconnection rules change; verify with Cairo Public Utility Company 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.