An off-grid solar kit replaces JPS entirely — which means it must be sized for your worst week, not your best day: enough panels to harvest, enough lithium storage to carry cloudy stretches, and a hybrid inverter strong enough for every simultaneous load.
What a real off-grid kit contains
605W bi-facial panels (J$25,000 each — off-grid homes typically need 8–20), a hybrid inverter with generous surge capacity (6kW J$220,000 to 12kW J$430,000), lithium storage sized for autonomy (10–16kWh units, J$360,000–J$450,000, often multiple), plus the full protection and mounting stack. BTECH assembles kits from stock and installs island-wide.
The off-grid sizing rules
Autonomy days: storage for 1.5–2 cloudy days keeps mornings calm.
Surge honesty: pumps and compressors briefly draw multiples of their running watts — the inverter must absorb it.
Load discipline: efficient appliances shrink every other line on the quote; the cheapest kilowatt is the one you never need.
Who goes off-grid in Jamaica
Rural properties far from lines (connection costs can exceed a whole system), farms, hillside homes on unreliable feeders, and owners who simply want done with bills. No JPS involvement also means no interconnection paperwork at all.
FAQ
What does a full off-grid home kit cost?
Small cabins start near the price of grid-assisted systems; full households typically J$1.5M–J$3M depending on loads — free sizing at btechj.com/solarestimate.
What about weeks of storm weather?
A small generator as rare backstop is common and sensible.
Can I convert to off-grid gradually?
Yes — hybrid systems grow panels and storage in stages: 876-777-5488.
