There are two main types of solar power system
based on whether they are connected to the grid or not.
The grid connect
installation ensures you have the electricity you need, whenever you need it - automatically and regardless of weather conditions.
An off grid solar power system
is completely separated from mains power and is more expensive as it utilizes a battery bank for storing electricity generated by solar panels. Off grid installations are most common in rural of Hungary where the mains grid isn't available or prohibitively expensive to connect to. It also requires maintenance, as the batteries have to be replaced in every 5-6 years.