In addition to what are considered a primary necessity, such as was the refrigerator and the washing machine, the television has now been added to the list (1.4 per family), and an endless number of appliances such as the microwave, the clothes dryer, and the computer to mention some of the most common. Other control mechanisms which increase consumption are also proliferating in our homes.
Equally important are the thermal uses of electricity required, for example, by the heat accumulators (night storage heaters) and vitroceramic hobs in the kitchen.
Finally, another reason indicating increased energy consumption is the increased number of new homes requiring energy. In 1975 there were 9.3 million and at present there are almost 13 million. In the year 2010 it is calculated that there will be 14.5 million homes in Spain.