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Off-grid solar system for a villa

Villa — no utility supply on site. The load is air conditioner ×4, fridge, freezer, lights & Wi-Fi ×2, TV ×2, washing machine, water pump and kitchen (microwave & kettle). From the Voltronic catalogue the sizing takes the Axpert MAX II TWIN 12K inverter and 12 × LIO 4810 batteries (4.8 kWh each by name).

What is inside

Inverter + BatteryAED 36,467

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Solar panels11.6 kWp22 panelsInverter12 kWruns the placeBattery51.8 kWha full day + reserveVilla49.5 kWh/daywhat you use a day
How the energy moves through your system

What the records of these units say

Motors set the inverter size, not the daily total: this profile uses about 49.5 kWh a day but reaches 11.7 kW in the instant its motors start. The Axpert MAX II TWIN 12K is the unit the sizing landed on; its record gives the rated output power as “12000VA/12000W”. If the load grows, the same record allows up to 6 units in parallel.

With nothing behind the battery, it is sized for a whole day of this load: about 49.5 kWh. The sizing covers that with 12 × LIO 4810 batteries (4.8 kWh each by name), counting 51.8 kWh of it as usable. Its record states: nominal voltage 48VDC, cycle life “> 4500 @ 25°C” and 44.8 kg per unit. Two rows to hold against each other before ordering: the Axpert MAX II TWIN 12K states a battery voltage of 48 VDC in its record, and this pack states 48 V nominal in its own.

Panels are bought apart from this catalogue, which lists none; the array is therefore a count: 22 panels, 11.6 kWp, figured at 5.7 peak sun hours a day. What the Axpert MAX II TWIN 12K accepts on its solar input, from its record: maximum PV power “18000W (Max. 12000W per tracker)”. String the panels inside those limits.

Voltronic parts beside the inverter and the battery

None of these is in the kit above. Each is its own listing, with its own table and its own price, for the site that needs a transfer switch, remote monitoring or a separate charge controller.

Frequently asked questions

Can the Axpert MAX II TWIN 12K run this villa with no utility at all?

The catalogue files it as “Off-Grid Inverter”. In this kit it has only the panels and the battery to draw on, which is why the battery is sized for 49.5 kWh rather than for a few hours.

How much battery does this villa kit hold?

12 × LIO 4810 batteries (4.8 kWh each by name); the sizing counts 51.8 kWh of that as usable against a need of 49.5 kWh. The pack's nominal voltage is 48VDC, and the inverter's record states a battery voltage of 48 VDC.

What is the price of the Voltronic units in this villa kit?

1 × Axpert MAX II TWIN 12K at AED 2,339 and 12 × LIO 4810 at AED 2,844, AED 36,467 in all. That is the figure on each product page and the one you pay when you collect the order from our store in Dubai or Riyadh; panels and installation are outside it.

Can a second Axpert MAX II TWIN 12K be added later?

Its record states parallel operation of up to 6 units, so the inverter side can grow without replacing the first unit. Battery capacity is a separate decision, taken from the battery's own record.

Does Voltronic supply the solar panels as well?

Not in this catalogue. It lists 233 inverters, 88 UPS, 16 batteries, 20 solar charge controllers and 17 voltage regulators, and no panels. This kit needs 22 of them, about 57 m² of roof.

Other Voltronic kits: this building on another supply, and this supply elsewhere

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