City of Westerville

Ohio 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 If something here is out of date or missing, tell us and we'll fix it.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 TypeAnnual
Line Taps AllowedNo
Load Taps AllowedNo
AC Disconnect RequiredYes

Net metering & export

Net Metering Allowed
Yes
NEM Type
Annual
TOU Utility
No
Post Solar Billing Method
Net Metering
Net Excess Generation Notes

A customer’s net energy shall be calculated by subtracting the kWh of electricity the customer’s generator facility feeds back to the city’s system during a billing month from the customer’s metered usage of electricity supplied by the city. If the Customer’s net energy is negative during a billing month, only the energy charge of the customer’s standard service Schedule shall be calculated using the customer’s net energy supplied to the City. All other charges shall be applicable and charged as set forth in the Table of Rates (Electric) and calculated in accordance therewith. If the customer’s net billing under the standard service schedule is negative during the billing month, the negative net billing shall be allowed to accumulate as a credit to offset energy charges the customer incurs in future billing months. After eight consecutive billing months of accumulated credit, the customer may request a refund.

Rebates Offered
No

Interconnection & taps

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

System size & offset

System Size Restrictions
100
System Size Restriction Type
Percent
System Size Battery Included
No
System Size Includes Existing Systems
No
Offset Value
0
Offset Calculation Period
0
Industry Standard Watts Sqft
2
System Offset Notes

Up to 100% offset OR 10 kW DC/AC (whichever is less)

Offset Calc Tool
Historical Usage

Metering & disconnect

Production Meter Required
No
AC Disconnect Required
Yes
Allowed Meter Adapter
ConnectDER

Plans & docs

Meter Num Req SLD 3LD
No
ESID Num Req SLD 3LD
No
Rate Schedule Link
link
Website
link
Phone
(614) 901-6700

Other details

Mod Swap Requires Planset
Yes
Compiled from public records, 2026. Tariffs and interconnection rules change; verify with City of Westerville 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.