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Solar system for an office with overnight backup power

Office — 8 hours of night with the utility down. The load is air conditioner ×3, lights & Wi-Fi ×2, computers ×4 and kitchen (microwave & kettle). It needs 10 kW of inverter and one EnergyCube 405 battery (20 kWh by name); the sizing tool names no single Voltronic inverter at that rating. Listings that state 10 kW or more in their own name start with the Axpert King IP52 10KW, Axpert MAX AIR 10K and InfiniSolar WP 10KW.

If 4 hours are enough instead of 8, the storage needed falls to 6.7 kWh — 9 kWh installed across 1 battery unit(s), 9 kWh less. The array stays at 8.9 kWp. Solar system for an office with evening backup power

What is inside

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Solar panels8.9 kWp17 panelsInverter10 kWruns the placeBattery18 kWh~8 h after a cutOffice40.4 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 40.4 kWh a day but reaches 9.2 kW in the instant its motors start. That calls for 10 kW, and the tool leaves the inverter as a rating here. Nearest by name: Axpert King IP52 10KW (AED 1,997), Axpert MAX AIR 10K (AED 1,997) and InfiniSolar WP 10KW (AED 1,997). Another route is two smaller units side by side: 63 inverter records in this catalogue state how many units run in parallel, up to 12.

The battery only has to bridge the outage: 8 hours of this load is about 13.5 kWh. The sizing covers that with one EnergyCube 405 battery (20 kWh by name), counting 18 kWh of it as usable. Its record states: nominal voltage 409.6VDC, 4 battery modules per set, cycle life “6000 Cycles @>80% capacity” and 221 kg per unit. No inverter is named beside this pack, so its nominal voltage of 409.6 V is the figure to carry to the battery-voltage row of any inverter's page.

Panels are bought apart from this catalogue, which lists none; the array is therefore a count: 17 panels, 8.9 kWp, figured at 5.7 peak sun hours a day.

This profile includes computers, the load a UPS is bought for. 69 inverter records in this catalogue give a transfer time of 10 ms for personal computers and 20 ms for home appliances; 27 online UPS records give a transfer time of zero. The UPS models are separate listings, from AED 1,290 to AED 9,500 for the single-phase online ones.

Voltronic parts beside the inverter and the battery

The first entries are the inverters named above; none of the rest is in the kit. 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

Which Voltronic inverter reaches the 10 kW this office needs?

The sizing tool names none, so the catalogue is read by name: Axpert King IP52 10KW at AED 1,997, Axpert MAX AIR 10K at AED 1,997 and InfiniSolar WP 10KW at AED 1,997. Open each one and compare its phase and battery-voltage rows with your site before ordering.

How much battery does this office kit hold?

One EnergyCube 405 battery (20 kWh by name); the sizing counts 18 kWh of that as usable against a need of 13.5 kWh. The pack's nominal voltage is 409.6VDC.

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

1 × EnergyCube 405 at AED 11,702. 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.

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 17 of them, about 44 m² of roof.

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

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