PRMS eGRID Subregion - Puerto Rico Miscellaneous Emission Factor (2023)

EPA eGRID2023 Rev2 · States: PR · Very Dirty

PRMS (Puerto Rico Miscellaneous) covers ZIP codes in PR (100%), by share of its ZIP codes. Its largest generation sources in 2023 were gas 44%, oil 39%, coal 15%. This page gives the official EPA eGRID2023 emission factors for PRMS, used for GHG Protocol Scope 2 location-based reporting.

Emission Factors

1548.53

lb CO₂e / MWh

0.7024

kg CO₂e / kWh

2.31%

Carbon-free

2.31%

Renewable

The PRMS subregion is 101% dirtier than the US average (770.9 lb CO₂e/MWh).

All Pollutants

Pollutant	lb / MWh	kg / kWh	Scope
CO₂e (total GHG)	1548.53	0.7024	Scope 2
CO₂	1543.073	0.6999	Scope 2
CH₄ (methane)	0.077	0.00003493	Scope 2
N₂O (nitrous oxide)	0.012	0.00000544	Scope 2
NO_x	3.902	0.00176992	Air quality
SO₂	3.695	0.00167602	Air quality
CO₂ non-baseload	1636.738	0.7424	Avoided-emissions estimates (not Scope 2)

Generation Mix

Solar1.5%

Wind0.6%

Natural Gas43.5%

Coal15.2%

Oil39.0%

kWh to CO₂ Calculator

Enter electricity consumption (kWh):

Using PRMS emission factor: 1548.53 lb CO₂e/MWh = 0.7024 kg/kWh. Source: EPA eGRID2023.

Data Source & Methodology

These emission factors are from EPA eGRID2023 Rev2 (released June 2025), the official US government source for grid electricity emission rates. eGRID uses annual net generation and emissions data from all US power plants to calculate subregion-level output emission rates.

For GHG Protocol Scope 2 reporting, use the CO₂e total output emission rate: 1548.53 lb/MWh or 0.7024 kg/kWh.

Get This Data via API

Query PRMS emission factors by ZIP code:

curl "https://emission-factors.com/api/lookup?zip=YOUR_ZIP"

Read the API docs - free, no key, no signup.

Frequently Asked Questions

What is the PRMS emission factor for Scope 2 reporting?

The PRMS eGRID2023 Scope 2 location-based emission factor is 1548.53 lb CO₂e per MWh (0.7024 kg CO₂e per kWh). This is the value to use in GHG Protocol location-based Scope 2 calculations for facilities in the Puerto Rico Miscellaneous subregion.

Which states are in the PRMS subregion?

PRMS (Puerto Rico Miscellaneous) covers ZIP codes in PR (100%), by share of its ZIP codes. Its largest generation sources in 2023 were gas 44%, oil 39%, coal 15%.

How do I convert kWh to kg CO₂e for PRMS?

Multiply kWh by 0.7024. Example: 50,000 kWh × 0.7024 = 35120 kg CO₂e (35.12 tonnes).

Query any US ZIP code via API

33,700+ ZIP codes · All 27 eGRID subregions · EPA eGRID2023 + eGRID2024 (Cornerstone)

Read the API docs · Scope 2 guide