Balcony photovoltaics are becoming increasingly popular, especially among those who cannot install a traditional photovoltaic system, for economic reasons or due to roof access constraints. Although it is a useful solution, it certainly cannot be compared to the most traditional photovoltaic system: the power is in fact much lower. The savings on the bill are not huge, but not to be underestimated.
How much you save on your bill installing a balcony photovoltaic panel? This is the question that more and more families are asking themselves, with the increase in popularity of these plug and play panels. Certainly, producing energy independently is a smart way to both cut family expenses and reduce your environmental impact, considering that photovoltaic is a completely renewable source. However, you should not make the mistake of comparing this balcony solution with a classic system, since the differences are important, both in terms of savings and energy produced. How to proceed, accordingly?
First of all, before proceeding with the installation of photovoltaic panels on the balcony, it is useful to inquire with your municipality of residence, to verify the presence of any architectural or landscape constraints defined by the regulatory plan. For those who live in a condominium, however, it may be useful to involve the administrator of the building, to understand how to proceed in compliance with all the other condominiums.
How much you save with a balcony photovoltaic panel
Balcony photovoltaic panels are a fairly recent innovation, which has become increasingly popular in recent years. In fact, they are a solution designed for those who want to obtain a small or medium saving on their bill, but without having the possibility of installing a classic photovoltaic system. Sometimes for reasons of space – for example, the impossibility of fixing the panels to the roof of the house – other times for economic reasons. But how does it work, what are its characteristics and how much can you save?
The characteristics of balcony photovoltaics
When talking about balcony photovoltaics, the reference is usually to solar kit Of power less than 800W: these are designed so that they can be installed completely independently by the buyer on railings and parapets and are easy to connect to the network, it is no coincidence that they are also called “fotovoltaico plug and play”.
The kit usually includes one or more small or medium-sized photovoltaic panels, an inverter and a special electrical connection that, when connected to any household socket, feeds energy into the domestic network. Usually, however, there is no storage systemgiven the rather low power, although this solution can still be added independently by the buyer. Precisely because of the absence of a storage system, the energy produced must be consumed at the same time it is generated, and therefore cannot be used at a later time, for example in the evening.
The fact that photovoltaic from the balcony is limited to 800W is certainly not a coincidence. Above this threshold, in fact, the authorizations relating to classic photovoltaic systems are required, while below 800W it is sufficient to notify the network operator – online or via PEC, depending on the operator – so that it can correctly measure the new flow of excess energy, thus avoiding it being mistakenly considered as consumption. Equally important, with photovoltaic from the balcony it is not possible to take advantage of the exchange on the spotor the transfer of excess energy produced to the network operator, through appropriate compensation.
How much you save
Having explained the characteristics of balcony photovoltaics – in particular, the 800W limit and the basic absence of a storage system – it is useful to ask how much, in fact, you will save with this solution.
First of all, you need to start with the investment needed to purchase everything you need to transform your balcony into a small photovoltaic system. prices can vary greatly depending on the type of panels chosen, the company or operator that offers them and, again, any promotions. Typically, the cost is between 800 and 1,500 euros. Taking advantage of any government incentives, you can reduce this cost by half, if the conditions exist.
In the presence of optimal exposure and high electricity consumption during the day – such as turning on the washing machine, dishwasher and other energy-hungry appliances – with balcony photovoltaics you produce just over 400 kWh per year for a single panel (about 350/400W) and about 700 kWh per year for a double panel (up to 800W). This is about 15-30% of the annual consumption of an average family which, in the bill, translates from 100 to 270 euros per yeardepending on the contract signed with your supplier.
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Source: www.greenstyle.it
