Costa Solar Guide Logo
Costa Solar GuideIndependent Advice
Vertaling in uitvoeringDe inhoud van deze pagina is momenteel alleen in het Engels beschikbaar omdat onze redactie de Nederlandse vertaling controleert. De navigatie, knoppen en formulieren zijn al wel volledig vertaald.
Costa del Sol Vetted Installer Guide

Solar Installers on the Costa del Sol

Compare installers covering Málaga, Marbella, Estepona, Mijas, Nerja and Torrox. Learn what to look for beyond hardware prices before signing a contract.

Snel Antwoord

Compare installers covering Málaga, Marbella, Estepona, Mijas, Nerja and Torrox. De optimale configuratie hangt af van uw werkelijke verbruik, dakoriëntatie, batterijbehoeften en het kiezen van het juiste teruglevertarief.

What a good solar installer should explain

A high-quality solar installer does not just sell hardware; they act as a complete energy advisory service. When reviewing quotes, check whether the provider has clearly outlined:

  • Expected annual energy yield based on your specific roof pitch and orientation.
  • Self-consumption calculations (how much solar energy you will use directly).
  • Expected export surplus (how much excess energy you will sell back to the grid).
  • Whether a physical battery is truly necessary for your usage profile.
  • What happens during grid outages and the strict limitations of standard systems.

Do not compare only headline price

Comparing quotes purely on the bottom-line price per panel is a common pitfall. Often, the cheapest quote is cheap for a reason—it may exclude crucial electrical protections, use inferior mounting rails, or lack support for the legalisation process.

Ensure your quote details the exact brands and models for the panels, inverter, and mounting structures. It should also explicitly state that the price includes local permits (licencia de obra), the final industry registration (boletín/CIE), grid connection setup, and after-sales monitoring support.

Questions to ask before signing

Before paying a deposit, ask these direct questions to any prospective company:

  1. Are the installations performed by your own internal staff or subcontracted teams?
  2. What happens if there is a roof leak within the first 5 or 10 years?
  3. Who handles the submission of paperwork to the Andalusian industry delegation?
  4. If a battery is included, does it support automatic backup during grid outages, or does it require extra wiring?
  5. Will you assist in setting up export compensation with my electricity supplier?

Why post-install tariff advice matters

Even the most efficient solar installation will underperform financially if you remain on an expensive electricity tariff. The commercial structure of Spanish energy means that your import rates (what you pay at night) and export rates (what you get paid for surplus solar) must be balanced correctly.

At Costa Solar Guide, we review both sides of the equation. We help ensure your system is installed by a certified professional and that your post-installation tariff is optimised to yield maximum savings.

Frequently Asked Questions

How do I compare solar installers on the Costa del Sol?
To compare installers fairly, you must request fully itemised quotes that list the exact manufacturer and model of the panels and inverters. Check if the installers use their own certified in-house teams or subcontract the labor, as in-house teams generally offer better quality control and accountability. Additionally, confirm that their quotes include local permits (obra menor) and final electrical registration (CIE). A sensible next step is requesting references of completed installations in your immediate municipality.
Should I choose the cheapest solar quote?
You should avoid choosing a solar quote based purely on the lowest price, as cheap quotes often use low-quality mounting rails or exclude essential electrical surge protections. A low upfront price may also mean the installer does not handle the legalisation paperwork or town hall permits, leaving you to manage these complex processes yourself. Choose an installer who offers a fair price, transparent warranties, and complete turnkey administrative support. We recommend getting at least three independent quotes to establish a market baseline.
What paperwork should a solar installer handle in Spain?
A professional solar installer in Spain should handle the complete administrative process, including the municipal building license (licencia de obra), the electrical safety certificate (boletín/CIE), and the industrial registration with the regional government. If these steps are not completed correctly, you cannot legalise your system to receive export compensation or claim local IBI property tax discounts. Be cautious of any company that asks you to submit these permit applications yourself. We recommend getting written confirmation that all filings are included in the price.
What should be included in a solar quote?
A complete solar quote must detail the exact brands and quantities of panels, inverter specifications, mounting hardware type, electrical surge protections, and the cost of labor. It must also explicitly include the fees for municipal building permits, structural certifications, and the final CIE electrical certificate. If a battery is included, the quote should clearly distinguish between nominal and usable capacity. A practical next step is submitting the quote for an independent review to check for hidden exclusions.
What warranty documents should I receive after installation?
You should receive a product warranty from the manufacturer for the panels (typically 12 to 25 years), an inverter warranty (5 to 10 years), and a battery warranty (10 years). Additionally, your installer must provide a workmanship warranty (usually 3 to 10 years) covering roof leaks and installation faults. Ensure you receive the legalised CIE electrical certificate, which is required to claim these warranties. A sensible next step is archiving all manufacturer sheets and signed agreements in a safe location.
Should the installer check my electricity bill first?
Yes, an installer must analyze a recent copy of your electricity bill to size your solar system correctly based on your actual annual consumption (in kWh) and contracted power (potencia). Sizing a system based only on roof space or generic estimates often leads to over-sizing, which wastes money because export credits are capped under Spanish regulations. A practical next step is providing your installer with your CUPS number so they can access your historical distribution data.
What are red flags in a solar quote on the Costa del Sol?
The main red flags are vague quotes without itemised equipment details, demands for an immediate deposit to lock in a 'today-only' discount, and claims of guaranteed government grants. In Andalusia, grants are subject to strict regional budgets and backlogs, meaning they can never be guaranteed. You should also be cautious of installers who cannot provide their registered industrial installer ID. A practical next step is requesting a revision of any quote that seems rushed or lacks technical specifications.