AKMS eGRID Subregion - ASCC Miscellaneous Emission Factor (2023)

EPA eGRID2023 Rev2 · States: AK · Clean

AKMS (ASCC Miscellaneous) covers ZIP codes in AK (100%), by share of its ZIP codes. Its largest generation sources in 2023 were hydro 67%, oil 25%, gas 6%. This page gives the official EPA eGRID2023 emission factors for AKMS, used for GHG Protocol Scope 2 location-based reporting.

Emission Factors

522.4

lb CO₂e / MWh

0.2370

kg CO₂e / kWh

68.98%

Carbon-free

68.98%

Renewable

The AKMS subregion is 32% cleaner than the US average (770.9 lb CO₂e/MWh).

All Pollutants

Pollutant	lb / MWh	kg / kWh	Scope
CO₂e (total GHG)	522.4	0.2370	Scope 2
CO₂	520.483	0.2361	Scope 2
CH₄ (methane)	0.026	0.00001179	Scope 2
N₂O (nitrous oxide)	0.004	0.00000181	Scope 2
NO_x	8.139	0.00369179	Air quality
SO₂	0.708	0.00032114	Air quality
CO₂ non-baseload	1548.614	0.7024	Avoided-emissions estimates (not Scope 2)

Generation Mix

Wind1.8%

Hydro67.2%

Natural Gas6.5%

Oil24.6%

kWh to CO₂ Calculator

Enter electricity consumption (kWh):

Using AKMS emission factor: 522.4 lb CO₂e/MWh = 0.2370 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: 522.4 lb/MWh or 0.2370 kg/kWh.

Get This Data via API

Query AKMS emission factors by ZIP code:

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

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

Subregions Serving the Same States

AKGD - ASCC Alaska Grid

Frequently Asked Questions

What is the AKMS emission factor for Scope 2 reporting?

The AKMS eGRID2023 Scope 2 location-based emission factor is 522.4 lb CO₂e per MWh (0.2370 kg CO₂e per kWh). This is the value to use in GHG Protocol location-based Scope 2 calculations for facilities in the ASCC Miscellaneous subregion.

Which states are in the AKMS subregion?

AKMS (ASCC Miscellaneous) covers ZIP codes in AK (100%), by share of its ZIP codes. Its largest generation sources in 2023 were hydro 67%, oil 25%, gas 6%.

How do I convert kWh to kg CO₂e for AKMS?

Multiply kWh by 0.2370. Example: 50,000 kWh × 0.2370 = 11850 kg CO₂e (11.85 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