Portuguese 
English 
Spanish 
2 min of reading 
5 comments 
Learn How a Solar Panel Can Power Your Electric Shower, Saving on Your Electricity Bill and Providing Hot and Sustainable Baths During Winter.
With the arrival of colder weather, using an electric shower can become a nightmare for your electricity bill. A 15-minute shower with a 5500W showerhead can cost up to R$41.65 per month. In a family of four, this amount can reach R$165 monthly. But there is a solution: the solar panel. How long can you run an electric shower using just a solar panel?
First, we need to know how much energy a solar panel can generate. Let’s use a 670W panel installed in Curitiba, one of the coldest cities in Brazil, as an example. Curitiba has an average solar radiation of 4.39 kWh/m² per day. This means that, on average, there are 4.39 hours of full sun per day.
To calculate the energy generated daily, we multiply the panel’s power (670W) by the hours of full sun (4.39 hours). Thus, we have 2.94 kWh per day. But that’s not all. Photovoltaic systems suffer efficiency losses due to dirt, improper tilt, and wiring losses. We estimate these losses at 25%, which leaves us with a real efficiency of 75%.
-
The Sol do Agreste Photovoltaic Complex begins operations in Pernambuco and accelerates the expansion of solar energy in Brazil, directly impacting the reduction of emissions and strengthening the sustainable energy matrix.
-
The Sol do Agreste Photovoltaic Complex begins operations in Pernambuco and accelerates the expansion of solar energy in Brazil, directly impacting the reduction of emissions and strengthening the sustainable energy matrix.
-
Renewable energy advances over protected areas in Brazil, and a survey by the Energy Transition Observatory reveals silent impacts that challenge environmental conservation and pressure sensitive traditional territories.
-
Rio Grande do Sul accelerates energy transition: State invests in renewable technologies and consolidates decarbonization strategies and pathways to attract billions in new industrial investments.
So, the Daily Energy Generated by the Solar Panel is 2.94 kWh Multiplied by 0.75, Resulting in 2.2 kWh Per Day
Now, let’s look at the shower’s consumption. A 5500W showerhead consumes 5.5 kWh in an hour. To find out how long this energy generated by the solar panel can keep the shower running, we divide 2.2 kWh by 5.5 kWh. The result is 0.4 hours, or 24 minutes.
Therefore, with a 670W solar panel, you can take a hot shower for 24 minutes every day without spending an extra cent on your electricity bill.
Comparison with Conventional Consumption
If you don’t use a solar panel and rely only on energy provided by the utility company, the same 24 minutes of daily showering would cost approximately R$66 per month, considering the kWh at R$1.00. This shows how a solar panel can be a great way to save and also contribute to more sustainable energy consumption.
Investing in solar panels not only helps to reduce your electricity bill but also promotes the use of clean and renewable energy. With solar energy, you can enjoy the benefits of a hot shower without worrying about high costs on your electricity bill, especially during winter.
Matéria totalmente equivocada, faz as contas de quanto uma placa gera em kWh e qual o consumo de um chuveiro, mas não explica que precisaria armazenar a energia da placa durante horas para ter um banho de poucos minutos. Sem armazenar essa energia, não faz nenhum sentido esse levantamento, pura viagem.
Pra que fazer OFF, se o ONGRID sai a custo extra ZERO e ainda compensa em outras faturas ($$$$$ no boldo) pura falta de informação
E na realidade o híbrido é o que mais compensa (usa o grid só pata backup)…….
Só.lembra que vc já tem a dívida com a CSS, so fazer ela pagar teu híbrido …..
Quanto custa ? Não adianta encher meus olhos com vontade de investir e não falar o preço necessário pra comprar, instalação, manutenção etc..