The energy from the 487 active plants accounts for the 19% of the renewable energy produced in Italy in 2010.:38 The total energy produced in 2010 was 8,787 GWh, with an increase of 29% from the previous year.:45
In 2001, the European Commission issued its Directive on Electricity Production from Renewable Energy Sources. The Directive set a goal for Italy to obtain at least 25% of its electricity from renewables by 2010. The 1999 Italian ‘White Book’ targeted to install 2,500 MW of wind power capacity by 2010; Italy exceeded this in 2007. The Italian government targeted 12,000 MW by 2020. Given that Italy's recent growth in wind power capacity has been about 30% annually, the target appears reachable by 2015. Italy introduced a renewable energy quota system in 2002, and uses green certificates to ensure that power producers and importers produce specified percentages of electricity from renewables. Renewable energy under the quota system must come from new or repowered plants which began operating after April 1, 1999.