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info@energycom.hr
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01 4875 952
info@energycom.hr
01 4875 952
The investor is the owner of a newer family house in Zagreb with increased electricity consumption. The household uses a heat pump, electric boiler, multi-floor cooling system and charges one electric vehicle. The goal was to reduce dependence on rising energy prices and cover a larger share of annual consumption through own production.
Energycom took on the complete job - from initial consultation and technical assessment, to design, equipment delivery, installation, commissioning and configuration of operational monitoring via app.
The household had high annual consumption and pronounced peak periods in summer and winter - in summer due to cooling, and in winter due to heating and domestic hot water preparation. An additional challenge was the arrangement of roof surfaces and partial shading in the early morning hours.
The investor did not want a partial solution. He needed a clear project with proven equipment, quality installation and an accurate overview of expected production. An important condition was also remote monitoring of system operation.
It was necessary to achieve a good balance between the available roof area, production throughout the year and the long-term profitability of the investment.
After analysing the location, consumption and available area, a system with a total capacity of 18.48 kW was proposed. The selected configuration comprises 48 monocrystalline panels with 385 W output and a three-phase 17 kW inverter. Due to partial shading and panel arrangement, a system with string-level optimisation was designed.
The structure was adapted to the tiled roof, and the panel layout was arranged to maintain good ventilation and a neat roof appearance. The investor received an app for monitoring production, consumption and basic system alerts.
This gave him a unique system that reduces energy costs, monitors plant operation in real time and facilitates future energy planning.
| Total power | 18.48 kW |
|---|---|
| Number of panels | 48 |
| Panel power | 385 W |
| Panel type | Monocrystalline |
| Inverter | Three-phase 17 kW |
| Mounting type | Roof structure for tiles |
| Operational monitoring | Mobile and web app |
| Panel warranty | 25 years on performance |
The project was delivered as a complete service, with no need for the investor to coordinate multiple contractors.
Consumption review, technical property assessment, roof analysis and preparation of an optimal system power proposal.
Preparation of the main design, required documentation and coordination of administrative steps.
Equipment installation, electrical connections, system testing and activation of plant operational monitoring.
The project was planned so that each phase has a clear sequence, deadline and responsible person.
Data on annual consumption, usage habits and planned future loads were collected.
The roof slope, covering condition, possible shading and electrical cabinet position were checked on site.
The client received a clear proposal for plant power, panel arrangement and an estimate of annual production.
After offer confirmation, project documentation was drawn up and equipment prepared for installation.
Installation was carried out in accordance with an arrangement that ensures stability, a neat appearance and easy maintenance.
All necessary electrical connections, protective elements and system control tests were carried out.
The system was tested, activated and connected to the app for real-time production and operational monitoring.
The investor received app instructions, a production overview and recommendations for optimal consumption.
In the first estimated year of operation the system produces approximately 22,300 kWh of electricity. This covers approximately 91% of the household's previous annual consumption. The greatest effect is achieved from spring to autumn, while during winter it significantly reduces total energy costs.
The estimated annual saving is approximately €3,920, with an expected return on investment of between 6.5 and 7.5 years, depending on future electricity price movements and household consumption habits.
An additional benefit is seen in more stable cost planning, increased property value and better consumption monitoring through the app.
"We wanted a solution that makes sense in the long term. It was important for us that one team manages everything and that we know what we are getting. After the system was commissioned, we immediately saw how much it means to have an overview of production and consumption in one place."
After commissioning the investor received access to an app for viewing production, inverter status and key plant performance indicators. This allows him a quick overview of daily, monthly and annual production.
For long-term stable operation, regular visual inspection of the system, occasional production checks relative to the season and a service inspection according to the equipment manufacturer's recommendation are advised.
Such an approach helps the plant maintain expected performance over years of operation.
Send an enquiry and request an estimate of the optimal system power, expected production and implementation cost.
