Since February 2011, utilities must inform the Inland Revenue of electricity consumption of taxpayers, with rents in order to detect undeclared or hidden industrial or commercial activity to the Treasury. You must also identify the holders of the supply contracts.
Finance has approved the model 159, "Annual Information Statement electricity consumption, to be submitted each year by computer and that will require utilities to provide the information of the estimated 25 million existing contracts Spain. In addition, utilities must include in its submission to the tax reference of the real estate and location, rated contract and the annual consumption in kilowatt, location of the supply and discharge date thereof.
According to the report, financial institutions are "heavily discounted" and may even lose money on this to sell their "stock" property, which "penalizes" promoters. 
other hand, the study at the end of 2010 will be 260,000 new homes started, 27% less than in the previous year, which will reach completion about 100,000 in 2012.