Equipplx

DIY Off-Grid System Builder

Size a complete solar system and get the parts list — matched, checked, and priced.

Your setup

Start from

Country

Province / state

Size for

Winter sizing builds a much larger array. Use it if the system is your only power in December.

System architecture

What's the difference?

3 components — controller, inverter and battery bank all chosen and wired by you. Cheapest per kWh, most parts to get right.
2 components — MPPT and inverter in one box, battery bank still separate. From about 2,400W, 24V and 48V only.
1 component — MPPT, inverter and battery in a single sealed unit, grown by clipping on battery modules. Almost no wiring, no fusing to size; roughly twice the price per kWh, and nothing is replaceable on its own.

What you'll run

Appliance	Watts	Qty	Hrs/day

Connected load0 W

Daily energy0 kWh/day

Override daily energy (kWh)

Maximum simultaneous load

1,500 W

Sets the inverter. Not everything runs at once — this is the realistic peak.

Days of reserve

Battery type

System voltage

Budget

Installing on

Sourcing

Installation area

Measured in

Currency

Buy from

The roof face or patch of ground you can actually build on. The array is held to 75% of it — fire setbacks, vents, a walkway and the gap between rows take the rest. Enter it and the builder will not propose an array that does not fit.

Distributor panels are cheaper per watt but you cannot order them from a marketplace — you need a trade account. "Buy online only" keeps every part in the list something you can actually add to a cart today.

Your system updates as you answer. Your answers travel in the link, so you can bookmark it or send it to someone — log in below to also save it to your pick history.

Working out your system…

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Country/region

Working out your system…

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