On-Grid photovoltaic system 10 kWp
From panel to socket: solar efficiency and total energy control
Un on-grid photovoltaic system of 10 kWp is one of the most balanced and performing solutions for the production of renewable energy intended for large homes, offices or commercial spaces.
This system allows significant reduction of the electricity bill, increases energy autonomy and contribute directly to the transition to sustainable consumption.
The presented configuration includes premium and perfectly compatible equipment: LONGi 430 W photovoltaic panels, Fronius Symo 10 three-phase inverter, Fronius Smart Meter, protection board for 2 strings și mounting structure K2 Systems.
Together, these components form a high-performance, durable and easy-to-monitor system.
1. LONGi 430 W photovoltaic panels – efficiency and superior quality
The panels LONGi are recognized worldwide for high yield, operational reliability and long life span. The technology monocrystalline half-cut ensures excellent performance even under conditions of high temperatures or diffused light.
Main advantages:
Increased efficiency and reduced losses in partial shading.
Anti-reflective coatings and high-quality materials for maximum light absorption.
Extended warranty and reduced annual degradation.
These panels convert solar energy into a stable source of electricity, contributing directly to savings and protecting the environment.
2. Fronius Symo 10 inverter – the heart of the system
The inverter Fronius Symo 10.0-3-M it is the intelligent center of the system, responsible for converting direct current (DC) into alternating current (AC), usable in the electrical network.
Key features:
Rated power: 10 kW three-phase
Two independent MPPTs – ideal for roofs with different orientations
Conversion efficiency of up to 98,1%
Complete connectivity: Wi-Fi, LAN, Modbus, Fronius Solar.web
Function zero feed-in, to limit injection into the network
Fronius is a reference European brand, recognized for reliability, precision and exceptional technical support. With this inverter, the system works stably, efficiently and fully digitally monitored.
3. Fronius Smart Meter – intelligent energy control
The Fronius Smart Meter adds a dimension of real-time control and optimization. It is a two-way meter that measures both energy produced and consumed, providing accurate data for efficient system management.
Major benefits:
Complete monitoring of energy flows (production, consumption, injection).
Optimizing self-consumption to reduce grid dependency.
Native integration into the platform Fronius Solar.web, easily accessible online.
Support for limiting injection into the network as required by the distribution operator.
With the Smart Meter, every kWh produced is efficiently utilized, contributing to real savings.
4. Protection board for 2 strings - safety and compliance
The protective panel is designed for maximum safety and compliance with European standards. Includes:
DC fuses for each string;
DC switch-disconnector accessible;
Type 2 Surge Arrester (SPD) on DC;
On the AC side: automatic fuses, differential protection (RCD type A) [#$$#] și SPD type 2 on AC;
Visible labels and markings, according to SR EN 62446 and SR EN 60364 standards.
This protection system guarantees safe operation, preventing electrical risks and ensuring simple maintenance.
5. K2 Systems mounting structure – stability and durability
The structure K2 Systems provides safe and durable mechanical support for panels. It is compatible with all types of roofs – from classic tiles to corrugated iron or flat roofs.
Advantages:
High-quality, corrosion-resistant materials;
Certified static calculation for wind and snow resistance;
Quick and precise assembly thanks to the modular design;
Aesthetic solutions and excellent roof protection.
Through K2 systems, the facility remains stable and secure for decades, maintaining the integrity of the construction.
6. Estimated production and energy benefits
In the climatic conditions in Romania, a on-grid photovoltaic system of 10 kWp produces annually between 11,500 and 12,500 kWh, depending on the orientation of the panels and the location.
This energy successfully covers the consumption of a large home or a small business, ensuring:
Reduction of the electricity bill by up to 75–80%;
The possibility of becoming a prosumer – injection of the surplus into the network;
Increase in property value;
Real contribution to reducing your carbon footprint.
7. Monitoring and Maintenance
Through the platform Fronius Solar.web, the user can track production, self-consumption and system efficiency in real time.
Recommendations for optimal exploitation:
Annual check of electrical connections and switchboards;
Cleaning the panels of dust or deposits;
Checking the SPD indicators and updating the inverter software.
8. The advantages of a complete photovoltaic system of 10 kWp
Top equipment: LONGi, Fronius and K2 Systems – global leaders in solar energy.
High performance: over 98% efficiency, minimal losses, constant yield.
Smart Monitoring: complete control of energy through Smart Meter.
Safety and Compliance: full DC/AC protections and compliance with European standards.
Durable mounting: professional, weatherproof structure.
Safe investment: payback in 5–7 years and long term benefits.
Conclusion
Photovoltaic system on-grid of 10 kWp cu LONGi 430 W panels, Fronius Symo 10 inverter, Smart Meter, protection board for 2 strings și structure K2 Systems represents a complete, modern and cost-effective solution for the production of green energy.
It is ideal for those who wish partial energy independence, low costs și premium technology with integrated digital monitoring.
With an average yield of over 12 MWh per year and a lifespan of over 25 years, this system is a safe and responsible investment — a concrete step towards a sustainable future based on clean energy, efficiency and innovation.
