Its easier to generate more energy than to conserve energy.
Same like spending. Easier to make money than to save money.

Then you need to use battery to keep the energy generated from solar to use at night. Its more expensive and requires maintenance compared to the on-grid solar system that is linked to tnb meter.

I guess that is why people are complaining.
The solar generated goes to tnb during the day when people go to work, and then at night, homes draw electricity from tnb. But seems that tnb will charge ICPT for both tnb and solar energy. That don't seem fair.

How many kids you have?
Do you have elderly parents at home?

I've got a friend with 2 kids who managed to sustain his bill just a little over $100/mth. Small terrace house. Its doable.

Lol
He is a penny pincher type of person.

Either a bungalow or semi-D size house.
Several kids including teens, so you have 10+ gadgets in the house and one or two gaming PC. Mom's a kitchen dweller, constantly cooking and baking. Lots of clothes to wash including dryer. Bonus if they have water pumps for their water tank, aquarium, or water feature landscapes and bonus if they have a swimming pool.

All rooms fully aircond plus living room. Easily can hit 1k+ bill.