Reviving this thread. I applied for meralco time of use. Downloaded the application form and brought it to the nearest Meralco branch. I asked them to apply 6 months zero interest for the meter. I'm paying about 557 pesos a month for 6 months for the meter.

After a month of use, my generation charge went down from 49.7% to 41.8%. Electrical consumption in kwh is still the same. Without changing our usage habits, 63.08% of our use is off peak and 36.92% is during peak. The only significant change is, we told the maids to do most of the laundry on Sundays. Come to think of it maybe we should tell them to iron on sundays.

Even with the meter charge, my monthly ave electric bill went down by around 700 pesos. If I'll disregard the 557 peso meter charge, I would save around 1250 pesos.