The demand for electrical energy on the Spanish peninsula was 23,385 GWh in the month of December, representing a growth of 2.9% with respect to the same month in 2009. The gross growth in demand was 4.2% due to noticeably colder temperatures than those registered in December last year.

At the close of 2010 the demand for electrical energy had reached 260,261 GWh, a 2.9% increase on the same period last year and a 3.2% increase in gross terms.

Evolution of demand growth

Blue line: gross demand.
Red line: demand.

Wind power production grows 5.4%
During the month of December wind energy production grew 5.4% compared to the same period in 2009, producing 19.7% of the total production. Similarly, generation derived from renewable energy sources reached 38.1% of the total generation during the same period. Regarding the year as a whole, energy production from renewable sources reached 35%.

In addition, 57.8% of December's electricity generation was produced by technologies which do not produce CO2 emissions.

Generation mix in the month of December

Generation mix January to December 2010

NB. As of June 2010, we have been taking as a reference the demand figures once the effects of seasonal and working patterns have been factored in to provide data which better reflects actual consumption figures.