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MesaAZ - Mesa AZ Energy Resources (City of Mesa)

Arizona Utility Interconnection & net metering rules
Net Metering Allowed1
Line Taps Allowed0
Load Taps Allowed0
AC Disconnect RequiredYes

Net metering & export

Net Metering Allowed
1
Post Solar Billing Method
Net Metering
Rebates Offered
0
Allows Standby
0

Interconnection & taps

Approval Req To Install
Yes
Interconnection Level
3
Line Taps Allowed
0
Load Taps Allowed
0
Automatic Transformer Upgrade Size
0

System size & offset

System Size Restrictions
10
System Size Restriction Type
DC 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
Utility Specific Adjustments
  • Residential without ESS: ≤ 5 kWDC
  • Residential with ESS: ≤ 10 kWDC PV (ESS ≤ 10 kWAC)
  • Commercial: ≤ 50 kWDC
System Offset Notes


Offset Calc Tool
N/A

Metering & disconnect

Production Meter Required
Yes
Production Meter Position
Inv-PM-Disco-POI
Production Meter Labeling
Production Meter
AC Disconnect Required
Yes
AC Disconnect Labeling
Utility AC Disconnect
Allowed Meter Adapter
None

Plans & docs

Site Plan Reqs
  • No load allowed between dedicated meter and breaker for DG equipment.
  • Breaker must be a dedicated circuit in the main panel (no other loads).
  • Meter socket must be next to the existing ERD Utility meter.
  • Meter and disconnect must have 24-hour access.
  • Existing Systems: Must be labeled and clearly identified.
SLD Reqs

Relay Meter Orientation = Over/Under

Requirements

  • CME accepts Hot Bus; a disconnect is required.
  • For Lug Fed MSPs: main breaker must be installed. If not possible, MPU is required.
  • City of Mesa/MesaAZ follows SRP labeling for PMs and disconnects.

Labeling

  • Dedicated DER Meter
  • DER Meter Disconnect Switch
  • Utility AC Disconnect Switch

Production Meter

  • Wire inverter to top, disconnect to bottom.

Existing Systems

  • All equipment must be shown, labeled, and called out.
Install Reqs

Disconnect must lock only in the OPEN position with a standard City/ERD padlock. Only City personnel may remove the padlock. Unauthorized removal is a material breach.

Placards

If solar equipment is on a different structure than the SES/delivery point

  • Install placards at every SES.
  • Placards must give clear directions to the SES and Disconnect Switches.
  • Label Disconnects as 1/x, 2/x, etc. (x = total number).
  • Placards must be embossed/engraved metal, permanently riveted or screwed on.

Disconnect must be labeled by as follows

  • DISTRIBUTED GENERATION DISCONNECT SWITCH WARNING!
  • ELECTRICAL SHOCK HAZARD
  • DO NOT TOUCH TERMINALS
  • TERMINALS ON BOTH LINE AND LOAD SIDES MAY BE ENERGIZED IN OPEN POSITION
Electrical Stamp Required
0
Meter Num Req SLD 3LD
0
ESID Num Req SLD 3LD
0
Rate Schedule Link
link
Website
link
Phone
480-644-2652

Other details

Restrict Inspection
0
Revision Required
1
Mod Swap Requires Planset
1
Address ID
110853
Express Planset Eligible
No
Compiled from public records, 2026. Tariffs and interconnection rules change; verify with MesaAZ - Mesa AZ Energy Resources (City of Mesa) 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.