Solar savings stop being abstract when you follow one household’s arithmetic: a J$30,000 monthly bill, a ~J$1.14M battery system, an 85% offset — and J$25,500 a month that stops leaving the house.
The household
Family of four, St. Catherine: fridge, freezer, washing machine, fans, TVs, router, water pump, one window AC used at night. JPS bill: ~J$30,000/month at rates historically equivalent to US$0.30–0.40/kWh.
The system
6kW hybrid inverter (J$220,000), 8 × 605W panels (J$200,000), 16kWh lithium battery (J$395,000), mounting/protection/cable and installation — about J$1.14M all-in from BTECH stock.
The savings flow
Panels carry the daytime; the battery carries the evening and the AC’s night shift; the grid covers rainy stretches. Offset: ~85%. New bill: ~J$4,500. Monthly saving: J$25,500 — J$306,000 a year.
The timeline
Payback: J$1,140,000 ÷ J$306,000 ≈ 3.7 years. Years 4–25+: the saving continues on warranted panels — over J$5M of avoided bills across two decades even with zero rate increases (and rates do not stay still).
Your version of this example
Swap in your bill and appliances — the free calculator rebuilds the arithmetic for your house in five minutes.
FAQ
What if my bill is smaller?
Smaller system, similar payback — the ratio holds down to modest bills.
What pushes savings to 90%+?
Bigger storage and daytime-shifted habits (laundry at noon, not 8 PM).
Who checks my maths?
We do, free: 876-777-5488.
