In the context of the global active response to climate change and the strong
advocacy of green development, China’s energy industry is demonstrating a
steadfast commitment to low-carbon transformation. In this process, green power
trading has gained significant development by virtue of its unique advantages
and potential. In this process, green power trading has gained significant
development by virtue of its unique advantages and potential. The core objective
of the Pinglu Canal Project, a pivotal initiative promoting green and low-carbon
development in the region, is to establish a “net-zero carbon” initiative by
facilitating the supply of green energy throughout its entire life cycle. This
initiative is designed to promote a green and low-carbon transition. This paper
conducts an in-depth study on the green power supply path during the
construction period of the Pinglu Canal project, and proposes four practicable
options. In order to scientifically and objectively determine the optimal path,
this paper constructs a comprehensive evaluation index system and a TOPSIS
evaluation method based on comprehensive weights. The system encompasses the
four dimensions of feasibility, economy, technology, and demonstration, enabling
a comprehensive and precise evaluation of the advantages and disadvantages of
each path. The findings of the empirical analysis demonstrate that the combined
scores of Path 1 (participation in green power trading), Path 2 (purchase of
thermal power with green certificates), Path 3 (rooftop distributed photovoltaic
system and purchase of new energy power), and Path 4 (rooftop distributed PV
system and purchase of thermal power with green certificates) are 0.8166,
0.7486, 0.2197, and 0.2885, respectively. The comparative analysis reveals that
participation in green power trading is the optimal strategy for the project’s
construction period.