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LUMA (PR)

Puerto Rico Utility Interconnection & net metering rules
Net Metering Allowed1
NEM TypeAnnual
Line Taps Allowed1
Load Taps Allowed1
AC Disconnect RequiredNo

Net metering & export

Net Metering Allowed
1
NEM Type
Annual
TOU Utility
0
Post Solar Billing Method
Net Metering
Solar Export Type
N/A
Net Excess Generation Notes
  • Customer net excess generation (NEG) is carried over as a kilowatt-hour (kWh) credit to the following month, but NEG credit is limited to a "daily maximum" of 300 kWh for residential customers and 10 megawatt-hours (MWh) for commercial customers.
  • Customers with excess credits remaining at the end of a 12-month period (ending in June) will be compensated as follows: 75% of the excess credits will be purchased by LUMA at a rate of $0.10 per kWh or "the amount resulting from the subtraction of the adjusted fuel fee based on the variable costs incurred by the public corporation exclusively for the purchase of fuel and energy, from the total price charged by the public utility to its customers, converted into kilowatt-hours, whichever is greater".
  • The remaining 25% will be granted to LUMA to distribute as a credit or reduction applied to the electricity bills of public schools.
Rebates Offered
0
Deregulated
0

Interconnection & taps

Approval Req To Install
Yes
Interconnection Level
3
Line Taps Allowed
1
Load Taps Allowed
1
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
No Restrictions
Offset Value
0
Offset Calculation Period
0
Industry Standard Watts Sqft
2
Utility Specific Adjustments
  • Transformer upgrades can be common due to limited infrastructure capacity. Please check the hosting capacity map: https://experience.arcgis.com/experience/99811dd66276465bb687a7fc8cc8cbe0/
System Offset Notes


Metering & disconnect

Production Meter Required
No
Production Meter Position
N/A
Production Meter Labeling
N/A
AC Disconnect Required
No
AC Disconnect Labeling
Visible Lockable Labeled Disconnect
Allowed Meter Adapter
None

Plans & docs

Site Plan Reqs

Requirements

  • Identify the 'Rapid Shutdown' on the site plan.

Electrical Stamp Process

  • EE stamp required for all projects
  • All pages, excluding removed pages
  • Use Right Angle Engineering
  • Electrical Stamp, Digital
  • Leave STAMP task under your name and in To Do
SLD Reqs
  • AC Disco or RSD required post PV. No ESS (battery) disco required.
  • EE stamp required. See Site Plan Requirements


Placards

The following pages should be removed from the plans

Electrical Stamp Required
1
Equipment Approvals
Other
Meter Num Req SLD 3LD
0
ESID Num Req SLD 3LD
0
Site Plan Notes

No specific site plan notes required.

Label Page Notes

No specific label page notes required.

Cover Page Notes

We must show specific information from the Utility Bill on the Title Block of the plans

  • Service Address: This can be found via "Direccion del servicio" field under "Informacion del Medidor Y Del Servicio" of Utility BIl (page 3)
  • Account Number: This can be found via "Su numero de cuenta" field on the top of the first page of the Utility Bill.
  • Account Holder: This can be found on 1st page of the Utility Bill (above mailing address)
  • If Utility Bill isn’t available in Lightspeed, block Plans task with ticket to SOW Management team

Note Latitude and Longitude (and XY coordinates) on Cover Page in the Vicinity Map

  • This can be pulled from "ID Localizacion” from Utility Bill
  • XY can be found via this website https://gis.jp.pr.gov/mipr/index.html?o=fromGeoloc 

Notate this calculation for AC System Size on title block

  • Peak output of 300 x Modules = x.xxx AC 
  • Peak output of 300 x 12 (inverters) = 3.600 AC
Electrical Diagram Notes
  • Note if the connection is 'Supply Side' or 'Load Side'.
  • Note on SLD under MSP [NO OTHER LOADS PRESENT IN THIS MAIN PANEL]
Website
link

Other details

Restrict Inspection
0
Revision Required
0
Mod Swap Requires Planset
0
Address ID
3421975
Express Planset Eligible
Yes
Compiled from public records, 2026. Tariffs and interconnection rules change; verify with LUMA (PR) 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.