How to store energy for rainy days

How to store energy for rainy days

Home energy storage systems have never been more popular because they clearly provide clean energy at a time when many are losing confidence in the reliability of the power grid and want to become more energy independent.


Storage batteries can be charged with electricity from the distribution network, but also with electricity that you can generate from renewable sources such as solar panels on houses, and that is why they are becoming more and more attractive, especially among the so-called prosumers – word made together from „producers” and „consumers”.

Power reserve in case of restrictions

In the event of a power outage, a home storage system will provide backup for more than 10 and even 20 hours.


Bearing in mind the energy crisis on the European continent, the lack of traditional fossil raw materials for electricity production, as well as the frequent need for households and various companies to get involved in the production of electricity from renewable sources - home electricity storage systems are at the peak of their popularity.


In addition, increasingly noticeable fires, floods or droughts disrupt the stable functioning of distribution networks around the world, so many households resort to storing the energy they produce themselves, so as not to be left in the dark during emergency situations.

Solar panel and home battery - a perfect match

In case you also have a solar panel - the battery will be recharged during the day until the reason for the power outage is removed, allowing you to continue with your usual activities. Otherwise, owners of solar panels without such storage systems would be left without electricity like all other consumers.


Households and companies that produce part of the energy for their own needs see the storage of the energy produced in this way - as a necessity, which allows them not only to be energy independent from the distribution network, but also to save the electricity generated from renewable sources for the moment they need it.


For example, a consumer may decide to power his household or business from his own generation and storage capacity during the day when energy from the distribution network is more expensive, and switch to the grid at night, when the solar panels are not producing electricity.

Advancing technology

With the acceleration of the trend of using electricity produced from renewable sources, batteries for accumulating energy from solar panels are experiencing a boom. Although so far most commonly used for off-grid systems, lithium batteries have made it possible for grid-connected consumers to consume self-generated energy and become more independent.


Today, there are batteries for both direct current and alternating current, and the most common are lead-acid, lithium-ion and "redox flow" batteries. Although lead-acid systems predominated in the past, today lithium batteries provide much higher efficiency and have a longer lifespan.

Investing in an electricity storage system - is it worth it?

The high cost of electricity storage systems is often a factor that deters owners of existing solar systems from making significant additional investments, but on the other hand, if incentives for renewable electricity production are reduced, many will likely consider home batteries as a more cost-effective option. solution.


However, some people invest in home storage systems without thinking about the profitability of the investment, because they want to be supplied with the energy, they produce themselves, at all times of the day and night, and find value in being energy independent and powered by clean electricity.