In recent years

a new kind of run mode of enterprise

"aluminium electricity pool"is raised quietly

which combined the power plants with the e lectrolytic aluminium factory together

makes full use of both of the charact eristics

and has achieved a great economic benefit.However

for the new run-mod e

especially for the newly built aluminium electricity pool

it is necessary to f ind out a mostly suitable power supply mode.According to the actual situation of us

a new power supply mode is proposed that the step-up substation in power p lant combines with the distribution in the aluminium factory.It not only saves b ig investment

but also increases the economic benefit.