Research on Utility Evaluation of Grid Investment considering Risk Preference of Decision-Makers

Table 1

Power grid investment effectiveness evaluation index system.

First-level indicator	Second-level indicator	Third-level indicators	Index number
Grid investment effectiveness evaluation	Economic benefits	New investment included in fixed assets ratio	A1
		Unit new asset pricing cost	A2
		Asset utilization efficiency	A3
		Weighted average return on capital	A4
		Unit asset pricing depreciation fee	A5
		Life-cycle return on investment	A6
	Social benefits	Investment power growth ratio	B1
		User reliability	B2
		System reliability	B3
	Environmental benefits	CO2 emission reduction rate	C1
		Proportion of clean energy power generation capacity	C2
		Pollutant emission reduction rate	C3
	Technical benefits	Qualified rate of voltage	D1
		Node voltage ratio	D2
		Average transfer ratio of transmission line	D3
		Network coordination	D4