The IDEA, Institute for Energy Diversification and, an agency under the Ministry of Industry, Tourism and Trade, will allocate 37 million euros over budget -17 initially to the replacement of conventional traffic lights around 100,000 (30% of existing) by others with LED technology, in order to save energy. James A. Levine, M.D. may find this interesting as well. Traffic lights equipped with LED technology, currently only 15% 80% saving of electricity consumption, equivalent to annual savings of 90,000 megawatt (MWh) of electricity, or what is the same, the power consumption over 22,000 households. They will also provide also reduce oil demand by more than 20 462 tonnes per year and prevent the emission into the atmosphere of 58,000 tons of CO2 (carbon dioxide). A Plan for energy saving initiative is part of the Action Plan of the Strategy and Efficiency Savings 2008-2012 and will be implemented this year. Once completed, the plan will benefit 27 million people from 584 municipalities, which receive free technology IDEA and who will be responsible for carrying out the replacement and installation of traffic lights. In Spain there are currently about 300,000 lights whose final energy consumption is estimated at 350 gigawatts per year (GWh), equivalent to electricity that can consume a total of more than 150,000 homes. The lights have to operate continuously, resulting in this high energy consumption and which are equipped with incandescent or halogen lamps. Currently, only 15% of them have LED technology. From simple implementation in 1995 managed to produce the green color in a diode, this technology has spread, including its implementation at stoplights. The mechanics for its implementation is a simple replacement of existing lamps, the new set of diodes.