SEN. Sherwin Gatchalian called on Saturday on concerned agencies to promptly resolve the recurring power interruptions across the country.Gatchalian’s appeal was addressed to the Department of Energy (DOE), the National Grid Corp. of the Philippines (NGCP) and the Energy Regulatory Commission (ERC).This comes as the NGCP continued to raise red and yellow alerts over the Luzon and Visayas grids due to the simultaneous forced outages of several…