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IID - Imperial Irrigation District

California Utility Interconnection & net metering rules
Net Metering Allowed0
Supply Side Taps Allowed0
Line Taps Allowed0
Load Taps Allowed0
AC Disconnect RequiredYes

Net metering & export

Net Metering Allowed
0
Post Solar Billing Method
Export Rate
Solar Export Type
Fixed kWh
Solar Export Rate
0.0698
Solar Export Value Notes
According to https://www.iid.com/Home/ShowDocument?id=19124 as of 1/13/25
Net Excess Generation Notes

$.0698 as of 1/13/25

https://www.iid.com/Home/ShowDocument?id=19124

https://www.iid.com/power/rooftop-solar

Rebates Offered
0
Allows Standby
1

Interconnection & taps

Approval Req To Install
Yes
Interconnection Level
1
Supply Side Taps Allowed
0
Line Taps Allowed
0
Load Taps Allowed
0
Automatic Transformer Upgrade Size
20
Automatic Transformer Upgrade Size Type
kW DC
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 Size Justification
Load Justification
System Offset Notes

Production cannot exceed 100% of annual usage -- project cannot be designed without usage.

  • If usage has not been provided, block with a ticket to SOW Management requesting usage to be provided by Sales
  • Production must be verified via PowerClerk NOT Aurora
  • PRODUCTION CHECK ---> https://iidrooftopsolar.powerclerk.com/MvcProjects/ProjectList?ProgramId=RC9KF76JDZJT
  • FOLLOW SOP IN FILES 'Power Clerk IID Offset Confirmation'
  • Video walk-through on out to correctly size an IID project ---> https://www.youtube.com/watch?v=r9d4kWb3tXo

Justification Letters accepted ONLY if customer DOES NOT have 12mo usage

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
Visible Lockable Labeled Disconnect
Meter Spot Process

&

Include the following:

1. Meter Number

2. Existing panel size

3. Upgrade size

4. Customer Name

5. Customer Address

6. Customer phone number


Once you have a meter spot, you will need a PAYMENT ID number from interconnection - they get this when the NEM has been approved and the fees have been paid. It is best to work with interconnection during this process.

Allowed Meter Adapter
None

Plans & docs

Site Plan Reqs
  • UTILITY DOES NOT ALLOW EZ PLANS MUST SHOW BOS LOCATIONS
  • AC Disconnect must be 24/7 accessible - in front of fences/gates
  • SHOW EV CHARGER ON SITE PLAN AND SLD
  • Site plan and ELD must be EE stamped
SLD Reqs
  • SINGLE SYSTEM DISCONNECT IS REQUIRED -- MULTIPLE DISCONNECTS NOT ALLOWED
  • ELECTRICAL ENGINEER STAMP REQUIRED ON SLD
  • Must have one single point of interconnection

Battery

  • If the system is split, use a disconnect between the gateway device and the POI breaker instead of a generation disconnect

#NFZ_ALL#

Electric Service Reqs


Install Reqs

Minimum clearance between Utility DG AC disconnect and meter service panel is 12".

Disconnect means shall clear the main service panel door's swing with a minimum of 6" clearance.

Electrical Stamp Required
1
Meter Num Req SLD 3LD
0
ESID Num Req SLD 3LD
0
Rate Schedule Link
link
Website
link
Phone
760-339-9301

Other details

Restrict Inspection
1
Revision Required
1
Address ID
108039
Express Planset Eligible
Yes
Compiled from public records, 2026. Tariffs and interconnection rules change; verify with IID - Imperial Irrigation District 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.