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Looking to lower your energy bills, improve your home’s efficiency, and make the most of the Costa Brava sun? Solar power is no longer just a trend; it’s an innovative and sustainable choice. Whether you live here full-time or part-time, switching to solar has never been easier.
With homeowners across Spain becoming increasingly aware of the need to cut their energy bills and carbon footprint, solar energy on La Costa Brava has become a popular choice for clean, affordable power. And now, with the costs of traditional energy sources soaring, installing solar panels on those very roofs makes more sense than ever, especially in Europe’s sunniest country!
callCarlos, in partnership with eltex, a Dutch-run solar energy company based in Barcelona, offers a wide range of solar solutions to help Costa Brava homeowners harness the sun and produce their own clean energy. Few companies combine advanced technology with the local expertise and transparency that eltex provides.
Spain has historically lagged behind northern Europe when it comes to solar energy (surprising, considering the climate!), but that’s changing rapidly. With recent legal reforms and rising energy prices, switching to solar is not only sustainable, but increasingly affordable.
The “sun tax” era (2015–2018)
Between 2015 and 2018, Spain introduced the impuesto al sol, or “sun tax”, which discouraged homeowners from installing solar systems. Not only did it tax self-produced solar energy, but it also required surplus power to be “donated” to the grid, with minimal compensation.
2018: A turning point
Thankfully, the unpopular tax was abolished in October 2018. Since then, Spain has embraced solar, empowering citizens to generate, store, and sell electricity without unfair fees. Consumers now benefit from net metering: surplus solar power sent to the grid can be “reclaimed” later, reducing the need for costly batteries.
As of 2025
Spain remains the leader in the solar transition in southern Europe. With streamlined permits, better subsidies, and rising electricity prices, switching to solar remains one of the smartest investments for homeowners.
callCarlos has been working with eltex since 2024 to deliver customised solar installations along the Costa Brava. With their deep knowledge and reliable service, eltex makes going solar easier than ever.
Whether you live in your home year-round, rent it out, or use it for holidays, eltex will help design a system that matches your lifestyle and usage, from basic rooftop panels to complete Home Energy Management Systems (HEMS) combining solar, battery storage, EV chargers, and heat pumps.
Their systems are designed to make your home as efficient and future-ready as possible. And thanks to their use of innovative AI software, you’ll get insights and tools to optimise your system and save even more.
Solar panels are made up of photovoltaic cells that convert sunlight into electricity. These cells absorb photons and produce electrons, generating direct current (DC). The inverter then transforms this into alternating current (AC), which powers your home.
Additional components, such as batteries, microinverters, EV chargers, or heat pumps, can be integrated to create an even more efficient setup. eltex excels in designing intelligent systems tailored to your home’s needs.
In Spain, solar installations must be carried out by a certified installer. eltex takes care of the entire process:
• Property assessment
• Custom design
• Installation
• Legal paperwork & registration with the Generalitat
• Grid access agreements for surplus compensation
No stress, no surprises. Just solar that works.
You can also benefit from available subsidies and incentives in Spain, such as:
• IBI Tax Credit (Town Hall):
Up to 50% off for several years
• ICIO Tax Credit (Town Hall):
Up to 95% deduction
• IRPF Tax Deduction (Catalunya):
Up to 60%
• Next Generation EU Funds:
Up to €600/kWp for homes under 10kWp
These incentives can significantly reduce the overall investment cost, making solar not only sustainable but also financially savvy.
Note: Subsidy amounts and conditions are subject to change. We’re happy to provide you with the most up-to-date information during your application process.
Modern photovoltaic systems require very little upkeep. Occasional cleaning and basic inspections are enough to keep things running smoothly. And should any part need replacement, reliable maintenance packages and ongoing service plans are available for lasting peace of mind.
Want to go solar but think it’s too expensive? Why not team up with neighbours? In shared buildings or adjoining houses, you can split installation costs and all benefit from the savings. Ask us how, we’ll help coordinate it.
We’re here to help! There’s never been a better time to go solar on the Costa Brava. New solar energy companies may be popping up due to recent changes in legislation, but few offer the experience, guidance, and peace of mind that callCarlos brings to the table. Whether you’re starting from scratch or just need help navigating the paperwork, we’re by your side from start to finish. Just call us! From planning to installation, we’ll handle it all.
The information provided on this website is for general information purposes only and is not intended as legal advice. It may not always be the most up-to-date information, legally or otherwise. This website contains links to third-party websites, and such links are only for the convenience of the reader. callCarlos does not necessarily recommend or endorse the contents of third-party websites. callCarlos does not assume any responsibility for actions taken by people who have visited their website, and no one shall be entitled to a claim for detrimental reliance on any information provided.
(+34) 972 963 015
Carrer Major, 4, 17251 Calonge, Spain
info@callcarlos.es
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