GCEC - Graham County Electric Cooperative Inc

Arizona Utility Interconnection & net metering rules

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Net Metering AllowedNo
NEM TypeN/A
Line Taps AllowedNo
Load Taps AllowedNo
AC Disconnect RequiredYes

Net metering & export

Net Metering Allowed
No
NEM Type
N/A
TOU Utility
No
Post Solar Billing Method
Export Rate
Net Excess Generation Notes
  • All kWh received from the customer by the Cooperative (Excess Generation) will be credited on the monthly customer bill by the Cooperative at the Arizona Corporation Commission (ACC) approved AER.
  • The credit shall be applied against the Cooperative monthly charges. No Excess Generation shall be “banked,” “saved” or “rolled forward” for use in a future month.
  • In the event the credit exceeds the amount due the Cooperative (Excess Credits), the credit shall be rolled forward and applied against subsequent Cooperative bills until used.
Rebates Offered
Yes
Deregulated
No
Allows Standby
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
0
System Size Restriction Type
No Restrictions
System Size Battery Included
No
System Size Includes Existing Systems
No
Offset Type
Percentage
Offset Value
125
Offset Calculation Basis
Historical
Offset Calculation Period
36
Industry Standard Watts Sqft
2
Utility Specific Adjustments

If no peak usage (residential/small business)

  • Take the highest 12-month kWh usage from the past 3 years.
  • Divide by 2190 to find 100% capacity (kW).
  • Multiply by 125% for the allowed system size.

If peak usage exists

  • Use 125% of the highest demand in the most recent 12 months.
System Offset Notes


Offset Calc Tool
Historical Usage

Metering & disconnect

Production Meter Required
No
Production Meter Position
N/A
Production Meter Labeling
N/A
AC Disconnect Required
Yes
AC Disconnect Labeling
Utility Disconnect Switch
Meter Spot Required
Yes
Allowed Meter Adapter
None

Plans & docs

Site Plan Reqs
  • The AC disconnect must be within 6’ of the utility meter and main. The distance must be shown on the site plan.
SLD Reqs


Electric Service Reqs


Placards

Disconnect Switch

  • Label as “Interconnected Utility Disconnect Switch” or “[System Type] Utility Disconnect Switch” (e.g., Photovoltaic Inverter Utility Disconnect Switch).
  • Label must be on a permanent placard with clear, durable lettering.

Breaker Panels

  • Customer must label all panels or devices that can be back-fed by the generator, per National Electric Code.
  • The Utility will label any of its own equipment.

Service Entrance

  • Place a sign at the service entrance showing the type and location of any onsite emergency, standby, or optional power sources as defined by the Utility.
Electrical Stamp Required
No
Meter Num Req SLD 3LD
No
ESID Num Req SLD 3LD
No
Rate Schedule Link
link
Website
link
Phone
(928) 485-2451
Compiled from public records, 2026. Tariffs and interconnection rules change; verify with GCEC - Graham County Electric Cooperative Inc 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.