How many solar panels do I need?
We are happy to help you calculate how many solar panels you need. By forwarding your energy bill to us, we can view your consumption from the past year and make you a quotation based on your consumption. We always recommend choosing a system designed for your usage. Despite the fact that you can return your unused energy, the payback time is the fastest if you use as much energy as possible and return as little as possible.
Can I calculate how many solar panels I need myself?
On your energy bill you can see how much electricity you use on average. Please note that part of this power is consumed at night and part during the day. Through a number of simple programmings (for example, running the pool pump during sunlight instead of at night), we can move part of the energy used at night to daytime.
When you know your average consumption during the day, you can calculate how many panels you need. You can also calculate this yourself using the following calculation. Note, this calculation gives you an average, which will be higher in the summer and lower in the winter.
10 solar panels of 400W = 4,000W (4kW)
4 kW x 0.8 (average efficiency factor Costa Blanca) = 3.2 kW
3.2 kW x 6 = approx.19.2 kWh per day (lower in winter, higher in summer)
19.2 kWh per day x 365 days = approx. 7000 kWh per year
You can also use your calculator
What type of solar panels are there?
Solar panels come in different shapes and sizes. The most common are polycrystalline and monocrystalline panels. Polycrystalline panels are usually blue, slightly cheaper and slightly less efficient than the usually black or dark purple monocrystalline panels. The quality differences between the two types are generally small.
At Solar Power Systems we work with monocrystalline solar panels. All our solar panels have a warranty of 12 years and a guaranteed power production of 25 years. All solar panels have an efficiency of approx. 20% or higher and depending on the available space, we opt for 60-cell or 72-cell panels. We constantly follow the markets in search of the best solar panels with the best price / quality / efficient ratio and exclusively from the better brands.