Pick your appliances – washing machine, immersion heater, power tools, borehole pump – and the builder sizes a Fogstar 48V battery bank, a ground- or roof-mount solar array, and a Victron or LuxPower inverter to match, with a live parts list as you go.

Honest off-grid numbers, not brochure numbers

Drop a pin on your site and the builder pulls real solar irradiance data for that spot, then simulates your system through every month of the year. A setup that runs forever in June and struggles in December will tell you so – before you buy anything, not after.

What the builder does for you

• Calculates your daily consumption in kWh from the appliances you plan to run
• Sizes a 48V battery bank (16–64kWh) that can carry your heaviest loads through the night
• Matches a solar array and MPPT charging – or an all-in-one hybrid inverter with built-in solar inputs – to the bank
• Shows month-by-month off-grid performance for your exact location, winter included

Checked by an engineer before you buy

Off-grid systems at this scale deserve a second pair of eyes, so we don't sell them straight from a basket. When your build is ready, send it to us – a Vunked engineer checks the design over, confirms the details with you, and only then do you buy. It's the same care we'd want for our own site.

Design it now, and we'll check it with you.