What is Lifecycle Analysis?
Lifecycle analysis (LCA), also known as lifecycle assessment, is a methodology for evaluating the environmental impacts of a product or process throughout its entire life cycle. For clean energy tax credits, lifecycle analysis typically focuses on greenhouse gas (GHG) emissions from production to end use.
Several clean energy tax credits under the Inflation Reduction Act use lifecycle GHG emissions as a key factor in determining credit eligibility and amounts. Understanding lifecycle analysis is essential for maximizing these credits.
Why Lifecycle Analysis Matters for Tax Credits
Section 45V - Clean Hydrogen
Credit tiers are based on lifecycle GHG emissions per kg of hydrogen produced. Lower emissions = higher credits.
Section 45Z - Clean Fuels
Credit amounts scale based on lifecycle emissions relative to petroleum baseline.
Section 45Y/48E - Clean Electricity
Technology-neutral credits require zero or near-zero lifecycle GHG emissions.
Components of Lifecycle Analysis
Emissions from feedstock production, extraction, and transportation to the production facility.
- - Raw material extraction
- - Feedstock processing
- - Transportation to facility
- - Energy used in production
Direct emissions from the production or conversion process itself.
- - Process emissions
- - Energy consumption
- - Fugitive emissions
- - Waste treatment
Emissions from distribution, storage, and end use of the product.
- - Transportation to market
- - Storage and handling
- - End-use combustion
- - Product disposal
The Department of Energy GREET model is often used for lifecycle analysis.
Learn About GREET ModelCredit-Specific LCA Requirements
Credit calculated based on emissions factor (EF):
EF = (50 - Lifecycle Emissions) / 50
Where lifecycle emissions are measured in kg CO2e per mmBTU, and petroleum baseline is 50 kg CO2e/mmBTU.
Fuels must have lifecycle emissions at least 25% below petroleum baseline to qualify.