NIA turns over 3 solar-powered irrigation projects in Leyte, Samar. TACLOBAN CITY — Three solar-powered irrigation projects in Leyte and Samar were turned over to local farmers early this week, providing a more reliable water supply for 42 hectares of farmland as Eastern Visayas faces agricultural challenges from climate change and El Niño. The National Irrigation Administration (NIA) Region 8 said the projects are located.