City of Manassas Utilities

Virginia 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 If something here is out of date or missing, tell us and we'll fix it.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

If the power output (kW) of the customer generation exceeds the load (kW) of the customer premises at any time during a billing cycle, the resulting energy (kWh) returning to the City’s system will be netted against the energy (kWh) consumed by the customer during that same billing cycle. If during a billing cycle the netted amount is a credit, this energy will be carried forward and applied to the usage in the next billing cycle. If no energy is used or the net result is a credit, the customer will pay the Customer Charge for the billing period. 

Rebates Offered
No
Allows Standby
Yes

Interconnection & taps

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

System size & offset

System Size Restrictions
10
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

Plans & docs

Site Plan Reqs
  • The City requires a manual, lockable, load break utility-interface disconnect switch between the output of the photovoltaic inverter and the Customer’s wiring connected to the City’s electric distribution system. The load break device shall be both visible and accessible to the City’s employees.
Electrical Stamp Required
No
Meter Num Req SLD 3LD
No
ESID Num Req SLD 3LD
No
Website
link
Phone
(703) 257-8200

Other details

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