Model

Number of Observations

R-Square

Root Mean Square Error

Probability > F-Statistic, Confidence Interval = 95%,

1

40

0.988

0.420

0.000

Model

Coefficients

Standard. error

t-statistic

Significance

(p > |t|)

1

Integrating regional energy systems

0.469

0.050

9.98

0.000

Use of storage technologies and renewable fuels

0.155

0.100

1.60

0.119

Improving energy efficiency in the buildings

0.313

0.100

3.14

0.003