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Table 5 Estimation results from 2SLS model 2

From: Determinants of household electricity consumption in Greece: a statistical analysis

Dependent variable: OLS estimation 2SLS estimation—first stage 2SLS estimation—second stage
log(Ave. consumption) Squ. meter area log(Ave. consumption)
Squ. meter area 0.003*** (0.0002)   0.005*** (0.0005)
Occupants 0.132*** (0.010) 2.616*** (0.970) 0.111*** (0.011)
Heating hours 0.075*** (0.013) 5.022*** (1.209) 0.058*** (0.014)
Cooling hours 0.058*** (0.015) −2.594* (1.337) 0.065*** (0.015)
Time spend: half-day or more −0.067*** (0.025)   −0.077*** (0.026)
Time spend: less than half-day −0.184*** (0.047)   −0.181*** (0.048)
Cooling type: no air-conditioning −0.090** (0.035) −2.776 (3.193) −0.082** (0.036)
Bedrooms   42.101*** (2.934)  
Rooms   16.977*** (1.816)  
Secondary heater: yes 0.074*** (0.025) −1.282 (2.253) 0.076*** (0.025)
Heating type: individual central boiler −0.016 (0.031) 5.673** (2.824) −0.031 (0.032)
Heating type: individual local units 0.093*** (0.035) −3.165 (3.180) 0.102*** (0.036)
Heating type: no heating 0.003 (0.055) −4.579 (4.958) 0.012 (0.056)
CDD 0.106** (0.051) 12.749*** (4.573) 0.092* (0.052)
Dwelling type: single family house   22.279*** (2.313)  
Age 0.033** (0.013) 1.081 (1.213) 0.022 (0.014)
Constant 4.633*** (0.100) −52.396*** (9.422) 4.585*** (0.102)
Observations 1,801 1,801 1,801
R2 0.297 0.381 0.270
Adjusted R2 0.292 0.376 0.265
Residual Std. error (df = 1787) 0.458 41.402 0.467
F Statistic (df = 13; 1787) 58.086*** 84.476***  
  1. Note: *p<0.1; **p<0.05; ***p<0.01