To facilitate the implementation of the "dual carbon" goals

explore the market application potential and low-carbon benefits of green ammonia as a new type of clean energy fuel

and conduct a study on the cost and carbon reduction value assessment from the production to the application of green ammonia fuel. Focusing on the entire process of green ammonia production through water electrolysis

synthesis

storage and transportation

as well as its combustion applications

with carbon pricing and electricity pricing as the core variables

we quantify the costs and carbon reduction benefits of green ammonia fuel under different scenarios

and complete a comprehensive economic evaluation of green ammonia fuel. The results indicate that

based on the carbon price at the end of 2024

when the electricity price is below 0.10 yuan/(kW·h)

the cost of green ammonia can be on par with that of gray ammonia. When it drops below 0.08 yuan/(kW·h)

it can become more competitive than natural gas. However

if the grid electricity price is set at 0.60 yuan/(kW·h)

green ammonia will not possess a competitive edge until 2050. The coupled effect of carbon price fluctuations and carbon emission intensity has significantly reshaped the economic landscape of ammonia fuel applications. The northwest electricity curtailment production model

leveraging its advantages of low-cost green electricity and low emissions

has already demonstrated carbon emission reduction benefits in 2020. Its cost advantage is expected to continue to increase in 2030

and it is projected that by 2050

carbon revenues will fully cover production

storage

and transportation costs. In summary

as the cost of wind and solar renewable energy generation continues to decline

green ammonia possesses excellent low-carbon economic benefits and broad application prospects

making it a viable clean energy alternative to important fossil fuels.