Glossary
Monocrystalline solar panel (placa solar monocristalina)
A photovoltaic panel whose cells are made of single-crystal silicon. It is more efficient than polycrystalline, has a uniform black look and is the most widely installed type in home solar self-consumption today.
What a monocrystalline panel is
A monocrystalline solar panel (placa solar monocristalina) is a photovoltaic module made with cells of monocrystalline silicon, cut from a single, very pure silicon crystal. You recognise it by its uniform black colour and by cells with clipped corners or, in current models, almost square.
Monocrystalline or polycrystalline
- Monocrystalline: more output per square metre, better performance in low light and a more even look. It is what goes on almost every home today.
- Polycrystalline: cells made of several crystals, with a bluish tone. It used to be cheaper but has largely disappeared from the home market.
On a small roof, the higher efficiency of monocrystalline panels fits more kWp into the same space.
What to check when buying
- Peak power in watts peak, what it produces under standard conditions.
- Module efficiency, which sets how much roof area you need.
- Temperature coefficient: important in Seville, where panels get very hot in summer and lose some output.
- Warranties on the product and on its output.
- Technologies such as PERC, TOPCon or bifacial that improve yield.
What it costs
A home self-consumption system costs, as a guide, 850 to 1,300 euros per kWp installed, and a 5 kW system 5,500 to 7,000 euros, according to industry sources for 2025 and 2026. The average home saving was 189 euros per kW per year in 2025, according to APPA.
How we help
We choose the panel and inverter to suit your roof and consumption, register the installation and handle surplus compensation. See solar panels in Seville, Spain.
Related services
Solar panels for self-consumption
We install solar panels in Seville, Spain and the surrounding province on a turnkey basis: we study your consumption and your roof, fit panels, inverter and protection devices, and handle the legalisation and the compensation for your surplus energy. With Seville's sunshine, each kW installed saves an average of about 189 euros a year.
Solar panel maintenance
We carry out solar panel maintenance in Seville, Spain: panel cleaning, thermal imaging to find damaged cells and connections, and checks of the inverter, protections and monitoring. You recover the production lost to dust and to faults nobody sees, even if another company installed your system.
Related questions
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Call us or send a WhatsApp message with a photo of the job. You get a fixed quote before any work starts.