Solar Sanity Checksolar, decoded Independent. Nothing you type leaves your browser.

City of Union

South Carolina Utility Interconnection & net metering rules
Net Metering Allowed1
NEM TypeMonthly
Line Taps Allowed0
Load Taps Allowed0
AC Disconnect RequiredYes

Net metering & export

Net Metering Allowed
1
NEM Type
Monthly
TOU Utility
0
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
0
Deregulated
1
Allows Standby
1

Interconnection & taps

Approval Req To Install
No
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
15
System Size Restriction Type
AC kW
System Size Battery Included
0
System Size Includes Existing Systems
0
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
0
Equipment Approvals
California Energy Commission
Meter Num Req SLD 3LD
0
ESID Num Req SLD 3LD
0
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

Restrict Inspection
0
Revision Required
0
Mod Swap Requires Planset
0
Address ID
4151835
Express Planset Eligible
Yes
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.