What are storage batteries used for?

When talking about photovoltaic systemswe almost always hear about the storage batteriesbut what are these devices used for? And when is it advisable to install these batteries? Storage batteries are exactly what they seem, that is, systems that allow you to accumulate energy which is produced by photovoltaic panels and which is not used “directly”.

As we will see, in fact, a photovoltaic panel without a storage battery allows you to use theself-produced energy only during the day, but we cannot use it in the evening or when it rains.

Thanks to these devices, however, it is possible optimize the operation of the panels and become more energy independent.

Let’s find out now what accumulators are used for and when it is convenient to install storage batteries.

What are storage batteries?

Summarizing what has been said so far, storage batteries are tools that allow you to store the extra energy produced by photovoltaic panelsand use it when the system is not in operation (for example in the evening or on rainy days).

In the past, storage batteries were made using lead acidwhich made them potentially dangerous to health. Today, however, things have changed a lot.

The vast majority of photovoltaic batteries are in fact made with lithium ionsso these are batteries not very different from those used for PCs and cell phones. This means that such devices are completely harmless to health.

What are storage batteries for photovoltaics used for?

We now know that these special batteries allow us to collect the energy produced by the panels and use it when we need it. But how does photovoltaic with storage batteries work, and above all, why is it so necessary to store energy?

Simple: photovoltaic panels without a storage battery can transform the sun’s energy into electrical energy, which will be used to instantly power electronic devices in the home.

The extra energy produced will be sold to the electricity grid for a fee financial compensation. This compensation, however, is lower than the actual cost of electricity. Furthermore, when the sun is missing, the building must be powered by the normal energy supply provided by its operator. As one can easily imagine, such a mechanism may not be very advantageous.

Equip yourself with a accumulator for photovoltaic Instead, it allows you to obtain energy from the sun, use it immediately and store the extra for when the panels are not in operation.

How long do photovoltaic batteries last?

Typically, lithium storage batteries guarantee excellent performance for at least 10 yearsunlike lead-based ones which have an average lifespan of 5-6 years.

The former, moreover, offer best performanceI am safer for health and guarantee greater efficiency. However, we must remember that lithium batteries have a higher price than lead ones. However, the investment will pay for itself within a few years.

How much does a photovoltaic storage battery cost?

Il cost of storage battery It depends on several factors, namely the size of the system and the type of battery chosen. Depending on the solutions adopted, the price can range from a few hundred to a few thousand euros.

The good news is that for these devices there are government incentives (Photovoltaic Bonus) and super bonuses that are useful for significantly reducing the cost.

When is it best to install storage batteries?

It is advisable to install storage batteries when, according to the meter readings, our energy consumption is higher during the evening and night hours than during the day.

Generally speaking, however, it is always useful to equip your photovoltaic system with special accumulators.

These special batteries, in fact, allow you to become more autonomous and independent from an energy point of view, and to give a hand to the environment by exploiting a type of renewable and sustainable energy.