Table 5 Descriptive statistics of the main variables.

From: Intelligentization helps the green and energy-saving transformation of power industry-evidence from substation engineering in China

variant

Sample size

Average value

(Statistics) standard deviation

Minimum value

Maximum values

Explanatory variable

 

project Greening

2642

86.536

26.353

25

114

Explanatory variable

 

project Intelligence

2642

27.725

14.632

11

54

Mechanism explanatory variables

 

Environmental monitoring capabilities

2642

0.627

0.013

0

1

Fine-tuning of resource control

2642

0.562

0.015

0

1

Instrumental variable

 

Regional digitalization Index

2642

0.562

0.124

0.152

0.896

Control variable

 

Scale of project investment (take pairs)

2642

8.365

2.373

6.573

12.473

project and construction cycle

2642

15.323

5.725

4

36

Type of construction

2642

2.132

0.531

1

4

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