Based on the actual data and needs of the Changsha Meixi Lake regional energy station project

a series of studies on the selection of project technical routes

scheme design

and equipment selection are carried out

and the evaluation indicators of the composite energy system are discussed. The methods for evaluating system design performance are researched

formulated

and verified by calculation examples. It proves that regional energy projects adopt a combination of annual primary energy utilization rate and annual system comprehensive coefficient performance for evaluation

which can reasonably reflect the system overall performance status.