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PEPCO (DC)

District of Columbia 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
1
Post Solar Billing Method
Net Metering
Net Excess Generation Notes

When you have a solar system and are being billed for net metering, you are charged only for the net amount of energy you use during each billing period. In other words, this is the amount of energy we deliver to you minus the excess amount you send back to the smart grid. If you send more energy to the grid than we deliver, you can receive credits on your bill. This program allows you to make full use of your own solar energy system, giving you more control over your energy costs.

Rebates Offered
1
Deregulated
0
Allows Standby
1

Interconnection & taps

Approval Req To Install
Yes
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
0
System Size Restriction Type
No Restrictions
System Size Battery Included
0
System Size Includes Existing Systems
0
Offset Type
Percentage
Offset Value
100
Offset Calculation Basis
Historical
Offset Calculation Period
12
Industry Standard Watts Sqft
2
Utility Specific Adjustments

System Sizing Requirements

  • Add up your total energy use (kWh) from the last 12 Pepco bills.
  • Divide that number by 1,200 to find the maximum inverter size (kW) you can install.
  • Example: 12-month usage ÷ 1,200 = max system size in kW.
  • In D.C., your system can be sized up to 100% of your 12-month energy use.

Net Metering Offset Caps

  • 2021: Up to 140% of annual usage
  • 2022: Up to 160% of annual usage
  • 2023: Up to 180% of annual usage
  • 2024: Up to 200% of annual usage
Inverter Oversize Restrictions
0
System Offset Notes


Offset Calc Tool
PV Watts

Metering & disconnect

Production Meter Required
No
Production Meter Position
N/A
Production Meter Labeling
N/A
AC Disconnect Required
Yes
AC Disconnect Labeling
Accessible and Lockable AC Disconnect
Allowed Meter Adapter
None

Plans & docs

Placards


Electrical Stamp Required
0
Equipment Approvals
California Energy Commission
Meter Num Req SLD 3LD
0
ESID Num Req SLD 3LD
0
Electrical Diagram Notes

All Jobs [THE AC DISCONNECT IS LOCKABLE, TAGGABLE, VISIBLE BREAK, 24/7 ACCESSIBLE]

Website
link
Phone
(866) 634-6977

Other details

Restrict Inspection
0
Revision Required
0
Mod Swap Requires Planset
1
Address ID
177058
Express Planset Eligible
Yes
Compiled from public records, 2026. Tariffs and interconnection rules change; verify with PEPCO (DC) 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.