Firms are spread across Vila-real, Almassora and Onda. Within 20 km of Castellón de la Plana are Geinel - Grupos Electrógenos, Electrogrup Grupos Electrógenos and Grupos Electrógenos Komanc Castellón. If you’re inland, ask each firm whether your village is inside their normal working area before you book a visit.
Only Electrogrup Grupos Electrógenos has 20 or more Google reviews. The average rating across the list is 4.4 (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.
For batteries, compare usable capacity rather than headline capacity, and check the warranty in cycles as well as years. For a generator, ask whether it can be started automatically by your inverter when the battery runs low.
Questions to ask before you sign
- What is the usable capacity and rated cycle life?
- Will the battery work with my existing inverter?
- Can the generator be started automatically?
- What fuel, and what does it cost to run per hour?