As in Canada this weekend, there will also be two 'DRS' overtaking zones for Valencia's Grand Prix later in June.
The news was confirmed by European Grand Prix organiser Valmor Sports' Jorge Martinez Aspar in the Spanish port city on Tuesday.
Valencia's street circuit has usually not hosted the most spectacular Formula One races but the adjustable rear wing innovation could change that, Aspar said in Spanish reports.
"Hopefully it will be a great show," he told El Mundo newspaper.
The organisers have reduced ticket prices for 2011 by 12 per cent with the goal of attracting 80,000 race-day spectators and breaking even financially.
"We have a contract until 2014, with the option to renew for five more years until 2019, and we believe that we will meet the deadline," he is quoted by Europa Press, playing down rumours one of F1's two Spanish hosts might make way to reduce the size of the sport's swelling calendar.
Two Grands Prix in Spain can live together perfectly well
Spanish motor racing federation president Carlos Gracia said the situation could be helped by the Barcelona and Valencia races having more space between them on the schedule.
But he insisted: "The two Spanish races have contracts in force and I know they are current in their payments and want to fulfil their contracts.
"We might have to change the date so they are not so close together but two Grands Prix in Spain can live together perfectly well."