Short answer
According to its Instagram post, Solar Nexo (a solar company in Antalya, based in Kepez) installed a hybrid system at a villa in Manavgat in July 2026: 20 TommaTech 605 W panels (12.1 kWp), a 15 kW hybrid inverter and a 15 kWh LiFePO4 battery. Panel, inverter and battery sizes are kept close together for a mid-sized villa.
The project video was published on the Solar Nexo Instagram account (@solarnexotr).
Project summary
The Instagram post from July 2026 shows that Solar Nexo installed a 12.1 kWp hybrid system for a villa in Manavgat. The post's visual highlights the technical room, where the hybrid inverter and the LiFePO4 battery unit stand side by side. This project is an example of balanced panel, inverter and battery ratios for a mid-sized villa.
System components
- Panels: 20 × 605 W TommaTech, 12.1 kWp in total
- Inverter: 15 kW hybrid inverter
- Storage: 15 kWh LiFePO4
Why was this system designed this way?
The three sizes are kept close to each other: 12.1 kWp of panels, a 15 kW inverter and a 15 kWh battery. The panel-to-inverter ratio is 12.1 / 15 = 0.81; in other words, the array stays below the inverter's capacity and the inverter does not saturate even at the midday peak. This ratio shows that inverter power is set by the villa's peak demand, not by panel production.
The battery-to-panel ratio is 15 / 12.1 = 1.24 kWh/kWp. In theory the average daily production in July is 66 kWh; a 15 kWh battery equals about 23% of that. When the battery is only meant to cover the evening load, this ratio can be considered sufficient. In winter (a theoretical 39 kWh per day in December) the battery takes longer to fill, and if evening consumption rises, grid support steps in.
LiFePO4 chemistry stands out in home storage for its thermal stability and cycle life. Manufacturers typically declare thousands of cycles, but this value varies by brand and model. Because the battery brand in this project is not stated in the post, no cycle life or warranty period is given. The battery warranty should be requested in writing for the specific brand and model.
Because the focus of this project's visual is the inverter and battery, the technical room layout is worth mentioning. A hybrid inverter and LiFePO4 battery are usually wall-mounted or cabinet-type units; ventilation clearance is left between the heat-emitting inverter and the battery, cable cross-sections are chosen for the battery current and suitable protection devices are used on the DC side. A technical room that is enclosed and unheated matters for the battery's operating temperature. The details of the layout in this project are not given in the post.
Estimated production
With the PVGIS value for Manavgat of 1,649 kWh/kWp/year, 12.1 kWp gives about 19,950 kWh of theoretical production per year. The highest monthly value is about 2,033 kWh in July and the lowest is about 1,198 kWh in January and December. These figures are a PVGIS-based theoretical calculation; actual production varies with roof orientation, tilt, shading and panel soiling.
Installation and commissioning process
Solar Nexo starts with a free site survey and designs the project around the roof and load information. If grid-connected operation is planned, an application to the distribution company is required; this power is below the 25 kW simplified rooftop procedure limit. After installation and commissioning, maintenance and 7/24 technical support continue. The post gives no project-specific timeline.
During commissioning, battery charge/discharge limits, grid connection parameters and the monitoring app are set up. The system flow is shown to the customer; afterwards the maintenance and 7/24 technical support line remains available.
For a similar system
It suits mid-sized villas with a clear evening consumption. The topic is explained by the hybrid system service, the LiFePO4 battery article and the hybrid inverter selection article. You can also visit our references, the calculation tool and the contact pages. For solar panels in Antalya province, including Manavgat, we size the system to the real load.
Questions about this project
Why was a 15 kW inverter used with 12.1 kWp of panels?
Inverter power is chosen more for the villa's peak load demand than for panel power. A hybrid inverter also feeds loads from the battery and the grid, so it is normal for it to be larger than the panel power. In this project the panel-to-inverter ratio is 0.81, so panel production cannot saturate the inverter and no clipping loss occurs. This ratio prevents clipping loss and leaves room for future load growth.
How many kWh does a 12.1 kWp system produce per year in Manavgat?
With the PVGIS figure for Manavgat of 1,649 kWh/kWp/year, theoretical production is about 19,950 kWh. The real value differs with roof orientation, tilt, shading and soiling; this figure is not a firm production promise. It is clarified with a roof-specific survey. The roof-specific survey refines this calculation to real conditions; production is never guaranteed in advance.
How many years does a LiFePO4 battery last?
Manufacturers typically declare thousands of cycles for home LFP modules, but this figure varies by brand and model. Because the battery brand in this project is not stated, no duration can be given. Real lifetime depends on depth of discharge, temperature and intensity of use; the warranty should be asked for in writing by brand. For this reason, look at the brand warranty instead of an exact number of years.
Related guides
Estimated yields are theoretical values based on PVGIS 5.3 data (EU Joint Research Centre); actual output depends on roof orientation, tilt, shading and temperature.
Considering a similar system?
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