let's assume 375hrs usage.
let's also assume 300w/hr [on load] consumption [cpu,speaker,led monitor,fans, etc...]
let's round off the current rate into an integer... 11php/kw
((375(hr) * 300w)/ 1000w) = 112.5kw
112.5(kw) * 11php = 1,237.5php
so more or less from (600 to 1,200) + 300php sa electicfan give and take if e consider ang idle time ug times nga di kadula or kadali 2-4 hrs ra mag dula (ako lang gi assume nga 8hrs a day pag weekdays ug 24hrs a day page weekends para dili ma short, mas nindot pasubraan para ma prepared sa worst case scenario).
i think kaya ra man paiguan sa budget. sakto2 raba na nga calculation?