Energy Demand of Buildings - Low Energy Cooling for Sustainable Buildings - page 15

Figure 1.14 Projected electricity consumption for cooling in Europe with the two main consumer
countries, Italy and Spain
for area-related cooling energy demand. Breembroek and Lazaro (1999) quote values
of 20 kWh m − 2 a − 1 for Sweden, 40-50 kWh m − 2 a − 1 for China and 61 kWh m − 2 a − 1
for Canada. The author's own survey of area-related cooling demand is shown in
Figure 1.15. For residential buildings, the Catalan building research centre, Institut
Cerda estimated a typical cooling energy demand in Catalunya of 13 kWh m − 2 a − 1 .
In the food trade the energy consumption for cooling is significantly higher, with
a total electricity demand between 82 and 345 kWh per square metre of sales area,
about 50-60% of total electricity consumption (O. O. Energiesparverband, 1996). The
demand is dominated by food cooling equipment.
Figure 1.15 Cooling energy demand for new commercial buildings