Mini photovoltaic for balcony: what is it, how much it costs and when is it convenient

Mini photovoltaic panels for balconies: how they work, how much they cost and when they are convenient

Balcony photovoltaic panels are becoming increasingly common, especially in urban settings. In fact, in many cities, it is difficult to install a traditional photovoltaic system — for example on the roofs of apartment buildings — and for this reason many people opt for more compact and cheaper solutions. Compared to a Classic domestic system, a photovoltaic balcony kit has a much lower cost and is much easier to install, also thanks to the “plug & play” systems now also available in large retailers. In many cases, simply plug a plug into a home outlet to start producing energy.

So let's see how a mini balcony photovoltaic system works, what are the costs to be incurred, the advantages and limitations, and which alternatives may be more effective.

How does a balcony photovoltaic system work

A balcony photovoltaic system has a simple structure, similar to that of a traditional system but on a smaller scale. The most common kits include:

• one or two solar panels;
• a microinverter (to transform direct current into alternating current);
• connecting cables;
• a Schuko plug for connecting to a power outlet.

These kits can be placed on the balcony railing, on a railing or on a flat surface, with the aid of adjustable supports to maximize solar radiation.

It is possible to distinguish two main categories:

• Up to 350 watts of power: “plug & play” systems, which can be installed independently without authorizations;
• from 350 to 800 watts: they require the supervision of an electrician and prior communication to the network operator (Enel Distribuzione or other DSO).

It is important that the installation guarantees electrical and mechanical safety, as well as good solar orientation. Even if the installation is technically simple, the support of a professional is advisable to ensure that the system works properly and does not compromise the validity of the warranty.

Advantages and limitations of balcony panels

Advantages:

• Low cost: a basic kit starts at around 500-600 €.
• Easy installation: in plug & play models, invasive work is not required.
• No complex red tape: under 350 W, a communication to the network manager and the condominium administrator is sufficient.

Limits:

• Absence of exchange on site: the energy produced in excess is fed into the grid but is not remunerated (unless registered in the free market through complex agreements).
• Convenience linked to instant self-consumption: to maximize savings, you need to use energy during the day, while the sun is shining.
• Limited production: this is a partial integration to the domestic energy supply, not a complete alternative.

In summary: balcony photovoltaic is convenient only if you can use the energy produced at the same time it is generated. Otherwise, the surplus energy is “given away” to the grid, reducing the economic efficiency of the system.

How much does a photovoltaic balcony kit cost?

The cost of a 300-350 W plug & play photovoltaic kit starts at about 600 euros, while a more powerful 600-800 W system can reach 1,200 euros or more, depending on the manufacturer and the quality of the materials. Installation costs, if necessary, should be considered separately.

It is still possible to take advantage of the 50% tax deduction through the Restructuring Bonus, recoverable over 10 years in the form of an IRPEF discount, provided that the payment is made by talking bank transfer and the requirements established by the legislation are met.

A more profitable alternative: GridShare's shared photovoltaic

If you cannot install panels on your balcony or if you are looking for a more scalable and profitable alternative, an interesting solution is the shared photovoltaic of GridShare.

With GridShare, you can invest in shares of large solar plants built in Italy. The energy produced is sold to the grid at market prices and revenues are redistributed among the participants based on the shares held. In practice, it's like having a photovoltaic system without having to install or maintain it.

Advantages of the GridShare model:

• No space or permissions are needed.
• No installation or red tape.
• Possibility to Reset the bill thanks to energy income.
• Active contribution to the national energy transition.

A simple and transparent solution to participate in the photovoltaic revolution even if you live in the city or in a condominium.

Conclusion

Balcony photovoltaic panels are a good entry-level solution for those who want to reduce energy consumption, provided they can exploit the energy at the time of production. For those looking for a more complete solution without structural constraints, the shared photovoltaic model — such as the one proposed by GridShare — may represent a more effective and sustainable alternative in the long term.