How to choose an inverter suitable for your photovoltaic system

If you live Bucharest or in the county Ilfov And you want to become PerfuumatorIf you have already been approved by The Green House program 2024Whether it is preparing for the next edition of 2025, one of the most important decisions is the choice of the right photovoltaic inverter.

Why? Simple: Inverter is the brain of your sun system. Transform the DC current (DC) generated by alternative current panels (AC), compatible with the electrical network of your home and appliances.

1. What role does the photovoltaic inverter play?

1. A functional photovoltaic system is based on three essential components:
2. Photovoltaic panels – which capture solar energy;
3. The inverter – which transforms it into usable energy;

Structure and assembly connections – that keep them together.

An effective inverter ensures:

• an optimized energy production,
• system safety,
• and real monitoring of production.

2. Types of inverter: which is suitable for your system?

If you are in the Bucharest -ilfov area and want to mount a Power 3––6 6qus. (more commonly encountered by Green house), you have available 3 types of inverter:

A) Inverter string (on-grid)

• It is the most common and accessible. Ideal for houses with an unstoppable roof, with panels mounted in the same direction.
• Recommended for: Most of the houses in the cities and municipalities of Ilfov (for example Volunari, Pantelimon, Chiajna), where the roofs are simple.

b) Optimization of the inverter

• Adds an individual control level for each panel. Very useful if you have a partial shadows (tree, fireplace, inclined roof).
• Recommended for: The urban areas of Bucharest (for example houses in sector 1 or 4), where the orientation of the roof is not ideal.

c) Inverter hybrid

• It also allows a solar battery for storage energy. Ideal if you want more long -term autonomy.
• Recommended for: Owners who want to invest in energy independence, especially in areas where interruptions occur (peripheral or rural areas of Ilfov).

3. How do you choose the power of the inverter?

The power of the inverter must be compatible with the power of the panels. Generally for a 3 kW system financed through green house:

• Recommended inverter: 3.0 kW – 3.6 kW.
• You can easily landscape the panel system (up to 120% of the inverter power), for better efficiency in the morning and evening.

4. Other important criteria:

✔️ Rendering inverter – Choose one with a minimum of 97%. The best models exceed 98%.
✔️ Online monitoring – Check if it has a mobile application.
✔️ warranty – Ideal minimum 5 years, preferably 10.
✔️ Compatibility with Green House -Cake certain that the model is accepted by the validable AFM installer in Bucharest or Ilfov.

5. Popular recommendations for 2024-2025:

✅ Huawei Sun2000-3ktl – Efficient, compact, intelligent. Very used in green home projects.
✅ Fronio at the first 3.0-1 – Made in Austria, reliable, excellent for residential environments.
✅ Sungrow SG3.0RS – accessible, but with good performance.

6. If you have been approved by the Green House 2024 …

Congratulations! Follow the passage in which you choose The installation program validated by the AFM platform. Will propose one or more inverter models. Do not hurry – ask for clear explanations on:

• efficiency,
• Compatibility with panels,
• Local guarantee and service options.

Read and update April 2025: AFM continues to approve the files of the photovoltaic house and when the green house is launched 2025?

Choosing the inverter is a technical decision, but with a direct impact in your pocket. In Bucharest and Ilfov, where energy prices are constantly increasing, a good choice can bring you faster to «0 she» to the current invoice.

Do you want to talk about which model is the best for your home? Leave us a message or contact us, help you with suggestions, simulations and solutions adapted to your home.