NYLI eGRID Subregion - NPCC Long Island Emission Factor (2023)

EPA eGRID2023 Rev2 · States: NY · Very Dirty

Long Island Power Authority (LIPA) grid with gas and growing offshore wind. This page provides the official EPA eGRID2023 electricity emission factors for the NYLI subregion, used for GHG Protocol Scope 2 location-based emissions reporting.

Emission Factors

1189.333

lb CO₂e / MWh

0.5395

kg CO₂e / kWh

6.5%

Carbon-free

6.5%

Renewable

The NYLI subregion is 54% dirtier than the US average (770.9 lb CO₂e/MWh).

All Pollutants

Pollutant	lb / MWh	kg / kWh	Scope
CO₂e (total GHG)	1189.333	0.5395	Scope 2
CO₂	1180.672	0.5355	Scope 2
CH₄ (methane)	0.14	0.00006350	Scope 2
N₂O (nitrous oxide)	0.018	0.00000816	Scope 2
NO_x	0.829	0.00037603	Air quality
SO₂	0.331	0.00015014	Air quality
CO₂ non-baseload	1316.38	0.5971	Scope 2 (marginal)

Generation Mix

Solar2.5%

Natural Gas87.2%

Biomass4.0%

Oil1.5%

Other Fossil4.8%

kWh to CO₂ Calculator

Enter electricity consumption (kWh):

Using NYLI emission factor: 1189.333 lb CO₂e/MWh = 0.5395 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: 1189.333 lb/MWh or 0.5395 kg/kWh.

Primary utility: PSEG Long Island

Get This Data via API

Query NYLI emission factors by ZIP code:

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

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

Neighboring Subregions

NYCW - NPCC NYC/Westchester NYUP - NPCC Upstate NY

Frequently Asked Questions

What is the NYLI emission factor for Scope 2 reporting?

The NYLI eGRID2023 Scope 2 location-based emission factor is 1189.333 lb CO₂e per MWh (0.5395 kg CO₂e per kWh). This is the value to use in GHG Protocol location-based Scope 2 calculations for facilities in the NPCC Long Island subregion.

Which states are in the NYLI subregion?

The NYLI (NPCC Long Island) eGRID subregion covers: NY. Long Island Power Authority (LIPA) grid with gas and growing offshore wind.

How do I convert kWh to kg CO₂e for NYLI?

Multiply kWh by 0.5395. Example: 50,000 kWh × 0.5395 = 26975 kg CO₂e (26.98 tonnes).

Query any US ZIP code via API

33,616 ZIP codes · All 27 eGRID subregions · EPA eGRID2023 + 2024 preliminary

Read the API docs · Scope 2 guide