(October 4, 2018, 3:37 PM EDT) -- WASHINGTON, D.C. — A Netherlands solar energy firm on Sept. 28 filed a petition in a District of Columbia federal court, seeking confirmation of a $74,271,750 international arbitral award issued in its favor over investments in concentrated solar power projects made in the Kingdom of Spain (Masdar Solar & Wind Cooperatief U.A. v. Kingdom of Spain, No. 1:18-cv-02254, D. D.C.)....