Sunfort Solar


We are Sunfort Solar, a solar energy company based in Empuriabrava, Costa Brava. We specialize in photovoltaic installations, battery storage solutions, energy certificates and energy consulting. Our goal: help you generate clean energy, reduce costs and move towards a more sustainable future.


Posted by Sunfort Solar

Setting the AC to 20° doesn’t cool faster: how to use air conditioning right (and pay less) Energy efficiency Hvac Self consumption

Setting the AC to 20° doesn’t cool faster: how to use air conditioning right (and pay less)

Sunfort Solar 31/05/2026

When the heat arrives and the house feels like an oven, many people do the same thing: switch on the air conditioning and turn the thermostat down to 20°, thinking it will cool down much sooner. It seems logical… but that’s not how it works. The unit doesn’t blow colder air just because you set a lower temperature: the only thing that changes is how long it runs and how much it consumes while trying to reach that target.

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Sunfort Care: we watch your installation while you’re away Services Maintenance

Sunfort Care: we watch your installation while you’re away

Sunfort Solar 04/05/2026

Most of our clients are second-home owners in l’Empordà. The house is here; they spend 2 or 3 months a year in it. For the other 9 months the solar installation keeps generating with no one watching, the alarm guards an empty house, the KNX and Loxone sensors do their job in silence — and if something breaks, they don’t find out until they’re back.

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My PV inverter keeps shutting off: why it happens and what you can do Photovoltaics Diagnostics Maintenance

My PV inverter keeps shutting off: why it happens and what you can do

Sunfort Solar 02/05/2026

You have a PV installation and notice that the inverter shuts off by itself during the day, especially during peak production hours. It usually recovers after a while, only to do it again the next day. If you have access to the manufacturer’s app (Fronius Solar.web, DEYE Cloud, Hoymiles S-Miles, etc.) and see error codes like OV-G, Vac > 253V, Grid Overvoltage, AC Voltage Out of Range, or equivalents, the inverter isn’t broken: it’s doing its job.

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Electrical Installation Certificate (CIE): When It’s Mandatory and How to Obtain It Regulations Electrical installations Solar energy

Electrical Installation Certificate (CIE): When It’s Mandatory and How to Obtain It

Sunfort Solar 06/02/2026

Do you want to install solar panels or increase your home’s contracted power capacity? Before doing so, you’ll probably need a Low Voltage Electrical Installation Certificate (CIE). This document is legally mandatory in many cases, but few people know about its existence until the electricity company requests it.

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Energy Performance Certificate: What It Is, When You Need One and How to Get It Energy efficiency

Energy Performance Certificate: What It Is, When You Need One and How to Get It

Sunfort Solar 30/01/2026

If you’re thinking about selling, renting out or applying for a holiday rental licence for your property in Spain, chances are you’ll need an Energy Performance Certificate (CEE — Certificado de Eficiencia Energética). But what exactly is it? When is it mandatory? And how do you get one?

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