You’ll find firms in Alicante, San Juan de Alicante, Castalla and L' Alfàs del Pi, among other towns. Closest to Alicante city are Placas Solares Alicante, Betasolar and Venelectric. For work that needs return visits, a firm within an hour’s drive is usually worth a slightly higher quote.
Luzentum, JS Instal and Core Energia placas solares Alicante lead on Google among firms with at least 20 reviews. The average rating across the list is 4.7 (firms with at least five reviews). Look at how recent the reviews are; a strong score from years ago says less than a steady run of recent ones.
Off-grid work is different from grid-tied rooftop solar. Ask how many stand-alone systems the firm has fitted, which inverter brands it services itself, and what happens if the battery fails in August.
Questions to ask before you sign
- How many off-grid (stand-alone) systems have you fitted?
- Can you size the system from my appliance list?
- What battery chemistry, usable capacity and warranty are you quoting?
- Which inverter brand, and do you service it yourselves?
- What does the price include: fitting, cabling, certificates?