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Solar system for a villa with evening backup power
Villa profile, sized for a 4-hour outage after sunset. The load lands on the SPF 12000T DVM, a 12 kW SPF inverter whose record states a 48 V battery, with the ARK 17.9L battery, counted as 16.1 kWh.
To carry 8 hours instead of 4, the same home has to store 16.5 kWh instead of 8.3 kWh — 31.5 kWh installed across 1 battery unit(s), 15.4 kWh more. The array stays at 10.9 kWp. Solar system for a villa with overnight backup power
What is inside
Solar panels×20
20 × 550 W solar panels · fills ~52 m² of roof
Where this kit sits in the Growatt range
The SPF 12000T DVM is rated 12 kW and its record gives a surge rating of 36 kW; this profile peaks at 11.7 kW when its motors start. Its record states a 48 V battery (Lithium/Lead-acid). Transfer time in the record: 10ms(max). The enclosure is IP20 and the unit weighs 75 kg.
The battery is there for the outage: 4 hours of this profile come to 8.3 kWh. The sizing picks the ARK 17.9L: 17.92 kWh on the nameplate, counted as 16.1 kWh. Its record: Cobalt Free Lithium Iron Phosphate (LFP), 51.2 V nominal, 90% depth of discharge, IP65, 196 kg, wall-mounted or Floor installation.
On the roof side the kit needs 10.9 kWp: 20 panels, about 52 m², with 5.7 hours of full sun a day assumed. The SPF 12000T DVM's record sets 14,000 W as the most panel power it takes, and this array stays under it. Its tracker works between 60 and 145 V, and 150 V is the DC ceiling the strings must stay under. The panels themselves are not Growatt products here.
Growatt units that sit beside this kit
Separate listings, each at its own price; the sizing adds none of them.
- Growatt 20.48 kWh 51.2 V Lithium Solar Battery ARK 20.4L
the next size in the same line, 20.48 kWh — AED 9,093
- Growatt 7 kW EV Charger THOR 07AS-S/P-V1
230 V supply, 32 A, IP65 — AED 1,200
- Growatt 11 kW EV Charger THOR 11AS-P-V1
400 V supply, 16 A, IP65 — AED 1,200
- Data Logger ShineWiLan-X2
datalogger, USB data interface, readings every 5 minutes — AED 1,200
Frequently asked questions
What does the villa profile switch on?
4 × air conditioner, fridge, freezer, 2 × lights & Wi-Fi, 2 × TV, washing machine, water pump and kitchen (microwave & kettle). Together they peak at 11.7 kW and use 49.5 kWh a day; the inverter and the storage are sized from those two figures.
Does the ARK 17.9L match the SPF 12000T DVM?
The SPF 12000T DVM's record states a 48 V battery (Lithium/Lead-acid); the ARK 17.9L's states a nominal 51.2 V.
What do the Growatt units of this kit come to?
SPF 12000T DVM: AED 5,251, ARK 17.9L: AED 7,062 — AED 12,313 together. Each figure is the one on its product page, and the order is collected from our store in Dubai or Riyadh.
How far can this storage grow?
The ARK 17.9L belongs to a line listed here in 10 sizes, 2.56–25.6 kWh.
Can a Growatt EV charger run beside this kit?
Yes, as a load of its own. The THOR 07AS-S/P-V1 takes a 230 V supply and charges at up to 7 kW (32 A); that is 58% of the 12 kW of inverter in this kit. The THOR 11AS-P-V1 needs 400 V. Work modes in its record: Fast/ PV Linkage/ Off-peak/ Load balancing. The sizing on this page does not count a charger.
Other Growatt kits: the same building, and the same grid option
- Solar system for a villa with overnight backup power
- Off-grid solar system for a villa
- Grid-tied solar system for a villa
- Solar system for an apartment with evening backup power
- Solar system for a house with evening backup power
- Solar system for a shop with evening backup power
- Solar system for an office with evening backup power
- Solar system for a farm with evening backup power