While the battle for control of Endesa has not yet been resolved, Acciona's investments in Spain's biggest electric company are providing large revenues to the Spanish builder. The construction company has invested some EUR 7.55 bn to build up a total 21.03% stake in Endesa. This interest is currently valued at EUR 8.18 bn in the market, some EUR 632 mln more than the price it was purchased. This amount almost doubles Acciona's net worth in 2005.