Statistics Norway

Energy uasage in households

4 Consumption of different energy commodities by housetype and household size. Supply of energy per household on average and confidence intervals for energy consumption. 2006
  Energy consumption on average
  Total energy Electricity Oil and kerosene Wood, coal and coke
  kWh
Total 21 644 16 240 1 411 3 853
         
House type        
Farm house 32 900 19 750 1 689 11 460
Detached house 26 680 19 330 1 965 5 261
Rowhouse etc. 17 033 14 376  639 1 946
Flat etc. 12 589 10 871  952  491
         
Household size        
1 person 15 011 11 606 1 109 2 216
2 persons 22 767 16 383 1 662 4 590
3 persons 26 482 20 613 1 037 4 540
4 persons 28 561 21 222 2 020 5 183
5 and more 30 846 23 040 1 613 5 972
         
  95 per cent confidence intervals for energy consumption1, 2
  Total energy Electricity Oil and kerosene Wood, coal and coke
  MWh ( 1 MWh = 1000 kWh)
Total 20,9 - 22,4 15,7 - 16,8 1,1 - 1,7 3,5 - 4,2
         
House type        
Farm house 24,4 - 41,4 13,4 - 26,1 0,0 - 5,0 6,4 - 16,5
Detached house 25,6 - 27,8 18,5 - 20,1 1,4 - 2,5 4,6 - 5,9
Rowhouse etc. 14,7 - 19,4 12,4 - 16,3 0,0 - 1,4 0,8 - 3,0
Flat etc. 7,1 - 18,0 5,6 - 16,1 0,0 - 3,1 0,0 - 1,8
         
Household size        
1 person 8,5 - 21,5 6,7 - 16,5 0,0 - 3,2 0,0 - 5,6
2 persons 20,5 - 25,0 14,9 - 17,9 0,6 - 2,7 3,3 - 5,9
3 persons 22,2 - 30,8 17,5 - 23,7 0,0 - 2,4 2,5 - 6,6
4 persons 26,0 - 31,2 19,4 - 23,0 0,8 - 3,2 3,6 - 6,8
5 and more 27,8 - 33,9 21,1 - 24,9 0,1 - 3,1 4,1 - 7,9
1  The interpretation of 95 % confidence interval is that the true value (average for the group) with 95 % probablity is within these limits.
2  The confidence interval is measured as the average + / - 2 times the standard error, divided on the sample in the group divided on the root of the total sample. The lower sample in the group, the larger becomes the uncertainty. There are few one person housholds in the total sample, and this implies a large confidence interval for this group.

Explanation of symbols