34.8 kWp Parallel Hybrid System in Manavgat: 2×20 kW Inverters

Project summary

According to the Instagram post dated February 2026, Solar Nexo installed a hybrid system for a high-consumption home in Manavgat, made up of 58 panels, two parallel inverters and two battery modules. The purpose stated in the post is to cut the high monthly electricity bill substantially and to come close to near-complete energy independence.

System components

Why was this system designed this way?

When the power class of a single inverter is insufficient for this consumption, two inverters are run in parallel. Two inverters of the same model, joined by a communication cable, behave as a single system and their output power adds up: 2 × 20 = 40 kW. The second benefit of a parallel architecture is redundancy and scalability; when the load is split in two, each inverter runs below its nominal rating and thermal stress is reduced. Because the panel-to-inverter ratio is 34.8 / 40 = 0.87, panel production does not exceed total inverter capacity.

The battery calculation is different too. 51.2 V × 280 Ah = 14,336 Wh, which is about 14.3 kWh per module; two modules give about 28.7 kWh in total. The storage-to-panel ratio is 28.7 / 34.8 = 0.82 kWh/kWp; in other words, in this project the panel power is larger than the battery capacity, and the design aims at daytime load and grid independence together. In theory the expected average daily production is 134 kWh in February and 189 kWh in July.

34.8 kWp is above the 25 kW limit of the simplified rooftop procedure (the limit was raised from 10 kW to 25 kW on 12.03.2022). Grid connection and the scope of net metering above this power are determined by the distribution company and current regulations; the post does not describe this application process.

The points to watch in a parallel installation are well defined: the two inverters must be the same model and software version, the AC outputs must be connected with the same phase sequence, the battery bank must be connected to a common data bus and the communication cables must be run at a suitable length. Even if one inverter fails, the second can keep carrying part of the load; however, this behavior depends on the backup output settings and the post gives no detail.

Estimated production

With the PVGIS value for Manavgat of 1,649 kWh/kWp/year, 34.8 kWp gives about 57,390 kWh of theoretical production per year. These figures are a PVGIS-based theoretical calculation; actual production varies with roof orientation, tilt, shading and panel soiling.

Installation and commissioning process

For high-consumption homes, the survey stage includes reviewing the existing subscription, contract power and hourly load structure. In project design, the DC string distribution of the parallel inverters and the placement of the battery bank are planned. If a grid connection is needed, an application step is added. Installation, commissioning, maintenance and 7/24 technical support follow. The post gives no timeline for this project.

At this scale, commissioning covers a synchronization test of the two inverters, a balancing check of the battery modules and DC string voltage measurements. The distribution of the 58 panels across the inverters and their placement on the roof surfaces are planned at the project stage; the post does not state this distribution.

For a similar system

A parallel inverter solution can be considered for high-consumption homes, large villas or facilities with several air conditioning loads. Hybrid systems, our hybrid inverter selection article and our Manavgat and Side article give details. You can also use the references, the calculation tool and the contact pages. For solar panels in Antalya province, including Manavgat, we design systems sized to the real load.

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.