life cycle assessmentLCA

• Assess the environmental impact of a product throughout its life cycle.

• LCA is divided into four stages: defining goals and scope, inventory analysis, assessment of environmental impact, and interpretation of results.

• The carbon footprint of solar and wind power is generally lower in electricity production, but still includes emissions from equipment manufacturing and dismantling.

• Electric appliances emit no carbon while driving, but their carbon footprint depends on the source of charging, which may be higher if they use unenvironmentally friendly energy such as coal.

• Regional factors greatly affect the carbon emission reduction benefits of transportation electrification. Different energy structures and markets in different regions (such as the United States and China) cause differences in the carbon emissions of electric vehicles.

Emissions from hydrogen due to manufacturing methods can be divided into

• Gray hydrogen: CO2 emitted in the process

• Blue hydrogen: using carbon capture technology to sequester carbon emissions

• Green hydrogen: no carbon emissions are emitted during the manufacturing process