Table 4 Energy use and carbon dioxide emission (CO2) of the office alternatives
In kWh/year | Present | Mega | Local | Home |
|---|---|---|---|---|
Offices | ||||
 Lighting | 1468 | 1299 | 812 | 1468 |
 Air conditioning electric | 991 | 932 | 485 | 1109 |
 Air conditioning gas | 8900 | 6261 | 2236 | 10,364 |
 Equipment | 622 | 523 | 361 | 684 |
 Subtotal office use | 11,981 | 9014 | 3894 | 13625 |
 Subtotal office energy reduction | 0% | 25% | 67% | −14% |
Transport | ||||
 Car | 4442 | 3397 | 0 | 0 |
 Train | 97 | 760 | 0 | 0 |
 Subtotal transport energy reduction | 4539 | 4157 | 0 | 0 |
 Total MWh per person | 16.5 | 13.2 | 3.9 | 13.6 |
 Energy reduction | 0% | 20% | 76% | 18% |
CO2 kg per year per person | ||||
 Office electricity | 511 | 383 | 163 | 582 |
 Office gas | 134 | 95 | 34 | 157 |
 Car | 128 | 98 | 0 | 0 |
 Train | 4 | 33 | 0 | 0 |
 Total kg/year | 777 | 608 | 197 | 738 |
 Percent of typical CO2 per capitaa | 7.4% | 5.8% | 1.9% | 7.0% |
 Emission reduction | 0% | 22% | 75% | 5% |