(Eagle News)– Red and yellow alerts are in effect over Luzon grid today, June 20. The National Grid Corporation of the Philippines said the red alert, which means there is a generation deficiency, will be in effect from 10 a.m. to 11 a.m., and from 1 p.m. to 4 p.m. It said a yellow alert, which means reserves do not meet the minimum requirements, is hoisted from 9 a.m. to 10 a.m., from 11 a.m. […]