Table 7 The estimation results for the...

Table 7

The estimation results for the ARDL model for the distribution subsystem

Models	Variable	Frequency of outages		Duration of outages
Models	Variable	Coefficient	p-value	Coefficient	p-value
Long term model	In system shutdowns	0.6981	0.099	0.4138	0.000
	D. maintenance and repair costs	−0.0001	0.622	0.0000	0.270
	In rainfall	0.0922	0.717	0.0715	0.529
	In failed equipment	0.8273	0.203	0.1109	0.704
	D. technical faults	0.0023	0.234	0.0009	0.302
	Trees	−0.0039	0.829	−0.0142	0.104
	System overload	−0.0372	0.193	−0.0125	0.298
	In theft and vandalism	−0.0121	0.715	−0.0074	0.918
	Constant	−0.1222	0.845	3.9127	0.009
Short term model	In system shutdowns
	D1
	LD.	−0.1497	0.000	−0.0977	0.129
	L2D	−0.1200	0.000	−0.1100	0.112
	D. maintenance and repair costs
	D1	−2.56e-06	0.315	−3.26e-06	0.606
	LD.	−2.56e-06	0.315	−3.26e-06	0.606
	In rainfall
	D1	−0.0111	0.701	0.0317	0.648
	LD	0.0001	0.994	0.0257	0.666
	L2D	−0.1857	0.384	0.0361	0.486
	In failed equipment	0.3485	0.000	0.2009	0.254
	D	0.3485	0.000	0.2009	0.254
	D. technical faults
	D1	0.0001	0.754	−0.0005	0.378
	LD.	0.0001	0.719	0.0001	0.697
	L2D	−9.98e-06	0.943	−0.0000	0.887
	L3D	−0.0001	0.421	−0.0000	0.637
	D. trees	0.0001	0.933	0.0047	0.171
	D1	0.0001	0.933	0.0047	0.171
	System overload	0.0072	0.005	−0.0014	0.821
	D1	0.0072	0.005	−0.0014	0.821
	In theft and vandalism	0.0072	0.083	0.0343	0.405
	ECM	−0.1335	0.068	−0.7187	0.000
	For frequency of outages; ${\bar{R}}^{2} = 70.7$			ARDL MODEL (1,2,1,3,1,4,1,1,1)
	For duration of outages; ${\bar{R}}^{2} = 60.9$			ARDL MODEL (1,2,1,3,1,4,1,1,1)

Models	Variable	Frequency of outages		Duration of outages
Models	Variable	Coefficient	p-value	Coefficient	p-value
Long term model	In system shutdowns	0.6981	0.099	0.4138	0.000
	D. maintenance and repair costs	−0.0001	0.622	0.0000	0.270
	In rainfall	0.0922	0.717	0.0715	0.529
	In failed equipment	0.8273	0.203	0.1109	0.704
	D. technical faults	0.0023	0.234	0.0009	0.302
	Trees	−0.0039	0.829	−0.0142	0.104
	System overload	−0.0372	0.193	−0.0125	0.298
	In theft and vandalism	−0.0121	0.715	−0.0074	0.918
	Constant	−0.1222	0.845	3.9127	0.009
Short term model	In system shutdowns
	D1
	LD.	−0.1497	0.000	−0.0977	0.129
	L2D	−0.1200	0.000	−0.1100	0.112
	D. maintenance and repair costs
	D1	−2.56e-06	0.315	−3.26e-06	0.606
	LD.	−2.56e-06	0.315	−3.26e-06	0.606
	In rainfall
	D1	−0.0111	0.701	0.0317	0.648
	LD	0.0001	0.994	0.0257	0.666
	L2D	−0.1857	0.384	0.0361	0.486
	In failed equipment	0.3485	0.000	0.2009	0.254
	D	0.3485	0.000	0.2009	0.254
	D. technical faults
	D1	0.0001	0.754	−0.0005	0.378
	LD.	0.0001	0.719	0.0001	0.697
	L2D	−9.98e-06	0.943	−0.0000	0.887
	L3D	−0.0001	0.421	−0.0000	0.637
	D. trees	0.0001	0.933	0.0047	0.171
	D1	0.0001	0.933	0.0047	0.171
	System overload	0.0072	0.005	−0.0014	0.821
	D1	0.0072	0.005	−0.0014	0.821
	In theft and vandalism	0.0072	0.083	0.0343	0.405
	ECM	−0.1335	0.068	−0.7187	0.000
	For frequency of outages; ${\bar{R}}^{2} = 70.7$			ARDL MODEL (1,2,1,3,1,4,1,1,1)
	For duration of outages; ${\bar{R}}^{2} = 60.9$			ARDL MODEL (1,2,1,3,1,4,1,1,1)

Source(s): STATA software 17 output