City of Union

South Carolina 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 If something here is out of date or missing, tell us and we'll fix it.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
Net Metering
Net Excess Generation Notes

"We currently have no avoided rates in our system. We give full retail rate for your generation up to net 0 kwh. The meters used are net meters billed monthly. They register delivered, produced, and net. The net has never been 0 in any month of our existing solar systems. We do not compensate monetarily."

Rebates Offered
No
Deregulated
Yes
Allows Standby
Yes

Interconnection & taps

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

System size & offset

System Size Restrictions
15
System Size Restriction Type
AC 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

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

Standard - Refer to AHJ Requirements

SLD Reqs

Standard - Refer to AHJ Requirements

Electric Service Reqs

Refer to AHJ Requirements

Electrical Stamp Required
No
Equipment Approvals
California Energy Commission
Meter Num Req SLD 3LD
No
ESID Num Req SLD 3LD
No
Site Plan Notes

Refer to AHJ requirements

Label Page Notes

Refer to AHJ Requirements

Cover Page Notes

Refer to AHJ Requirements

Website
link

Other details

Revision Required
No
Mod Swap Requires Planset
No
Compiled from public records, 2026. Tariffs and interconnection rules change; verify with City of Union 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.