Idaho Electricity Emission Factor 2023

EPA eGRID2023 Rev2 · NWPP subregion · Average

Idaho's electricity grid has a CO2e emission factor of 635.3 lb/MWh (0.2882 kg/kWh) - 18% cleaner than the US average. The grid is 58% carbon-free and 55% renewable. These are the official EPA eGRID2023 values used for GHG Protocol Scope 2 location-based emissions reporting.

635.3
lb CO2e / MWh
0.2882
kg CO2e / kWh
58%
Carbon-free
55%
Renewable

eGRID Subregion: NWPP

Idaho is entirely within the NWPP (WECC Northwest) eGRID subregion.

Generation Mix

Solar3.1%
Wind11.6%
Nuclear3.1%
Hydro38.7%
Natural Gas24.8%
Coal16.4%
Biomass1.0%
Geothermal0.7%

Electricity cost in Idaho

Latest monthly state-level average rate (EIA Form 861, 2026-04):

Sector$/kWh
Residential$0.127
Commercial$0.0987
Industrial$0.0727
All sectors$0.0989

State-level averages, not utility-specific tariffs. For exact pricing, check your utility's published rate schedule.

24-hour grid carbon profile

Average hourly CO2e intensity across the last 7 days from Idaho Power (ID's balancing authority). Red = dirtiest, green = cleanest. Data: EIA-930 (~24h lag).

Hours in local standard time. Swing: 1.9× between cleanest (17:00 local) and dirtiest (05:00 local).

Read full guide on hourly grid carbon intensity →

Derived metrics for Idaho

kWh to CO2 Calculator - Idaho

Using Idaho average: 635.3 lb CO2e/MWh = 0.2882 kg/kWh. Source: EPA eGRID2023.

How to Use Idaho's Emission Factor for Scope 2 Reporting

For GHG Protocol Scope 2 location-based emissions reporting, multiply each facility's electricity consumption by the emission factor for its ZIP code's eGRID subregion. All Idaho facilities use the NWPP factor: 635.267 lb CO2e/MWh.

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

Compare with Other States

Montana
781 lb/MWh
Nevada
590 lb/MWh
Oregon
635 lb/MWh
Utah
635 lb/MWh
Washington
635 lb/MWh
Wyoming
839 lb/MWh
Idaho
635 lb/MWh

Frequently Asked Questions

What is Idaho's electricity emission factor?

Idaho's EPA eGRID2023 electricity emission factor is 635.3 lb CO2e per MWh (0.2882 kg per kWh). This is 18% cleaner than the US national average.

How do I calculate Scope 2 emissions for a Idaho facility?

Multiply the facility's annual kWh consumption by 0.2882 to get kg CO2e. Divide by 1,000 for metric tonnes. For facilities spanning multiple Idaho subregions, use the emission factors API to get the exact factor by ZIP code.

How clean is Idaho's electricity grid?

Idaho's grid is 58% carbon-free and 55% renewable. At 635 lb CO2e/MWh, it is 18% cleaner than the US average of 770.9 lb/MWh.

Get exact emission factors by ZIP code

33,616 ZIP codes · All 27 eGRID subregions · CO2e, NOx, SO2, generation mix

Read the API docs · Scope 2 calculation guide