A Systems View Across Time and Space
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*** |