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Solar panels are capable of transforming sunlight into electrical energy, and we will discover together how much energy a 550W plate can generate.
First, we need to understand three things: the power of the solar panel, the solar irradiation of the location and the efficiency of the system. A power is the strength of the plate, and solar irradiation varies according to the region – after all, the Brazil is big damn and the sun isn't the same everywhere. What about efficiency? Well, this has to do with the natural losses of the system. Now find out how many kWh a 550W solar panel can generate.
Calculating energy, a simple formula
Now, let's get to the point: calculating the energy generated. The formula is simple: energy generated monthly is equal to the panel power times the average daily solar irradiation of the location, times the system efficiency, times the days of the month, all divided by 1000. Easy, right?
Let's use as an example a 550W panel installed in Belo Horizonte, with an average solar irradiation of 5,17 kW/m² per day and an efficiency of 80% (considering 20% losses). Doing the math, this card will generate around 68,24 kWh per month.
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Regional variations, the sun in favor of energy
However, this generation varies from city to city. In São Paulo, for example, with lower irradiation, generation drops to 58,47 kWh/month. In Brasília, which has a solzão of 5,28 kW/m² per day, generation rises to 69,69 kWh/month. So, location is key when planning your solar installation.
