L'Alcoià · Province of Alicante
Solar panels in Castalla
Enertysur Fotovoltaica brings solar energy to Castalla: free energy study, top-brand panels, a 25-year warranty and technical service within 24-48 hours if anything goes wrong.

- 1,000+installations completed
- 25 yearspanel warranty
- 80%average bill savings
- 24-48 hresponse to breakdowns
Industrial town
Why install solar panels in Castalla
Castalla has a strong industrial base, with large-roofed warehouses and workshops that are perfect for self-consumption. A business that uses power during the day can cut its electricity bill significantly with solar, and homes here also benefit from the sunny inland climate.
The province of Alicante is one of the sunniest in Europe: the Alicante weather station records around 2,900 hours of sunshine a year (AEMET). That means a system in Castalla produces a lot and pays back sooner than in northern Spain.
Castalla is about 47 km from Benidorm as the crow flies, and our team works regularly across the province: you can count on site visits, installation and a breakdown service within 24-48 hours.
Castalla has 11,908 inhabitants (INE 2025). We handle the prior notification or permit with the town hall and inform you about the tax rebates in force.
Castalla in figures
- Official name
- Castalla
- Area (comarca)
- L'Alcoià
- Population (INE 2025)
- 11,908
- Postcode
- 03420
- Distance to Benidorm
- 47 km
- Sunshine in Alicante
- ≈ 2,900 h/year
Services
Our solar services in Castalla
Solar panel installation in Castalla
Tailor-made design, installed in 1-2 days, legalisation included.
See serviceSolar maintenance in Castalla
Annual contracts with a technical report and priority WhatsApp support.
See serviceSolar repairs in Castalla
Inverters, panels, wiring and batteries of any brand, with free remote diagnosis.
See serviceSolar self-consumption in Castalla
Cut your bill to a minimum and get surplus compensation registered at no cost.
See serviceProcess
How we install your solar system in Castalla
Free study in Castalla
We visit your home or business to carry out a free energy study.
Tailored design
Using the data collected, we design the system and calculate payback and available grants.
Professional installation
IDAE-certified technicians install the system cleanly and without building work.
Paperwork and grants
We legalise the system, commission it and set up monitoring on your phone.
Grants
Solar panel grants in Castalla
Besides income tax relief and the Generalitat Valenciana's calls, many town halls offer IBI and ICIO rebates. Check your town hall's rebates or ask us: we process them for you. We also offer financing up to 120 months.

FAQ
Questions about solar panels in Castalla
What do solar panels cost in Castalla?
A system for an average home costs between €4,000 and €10,000, depending on power and roof. With grants, the real cost can drop by 30-50%. We give you a free quote for your home in Castalla.
What permits does the town hall of Castalla require?
Each town hall has its own procedure: prior notification, responsible declaration or minor works permit. We handle it for you, together with self-consumption registration and surplus compensation.
Does the town hall of Castalla offer rebates for solar panels?
It depends on the tax bylaw in force. We check which IBI and ICIO rebates the town hall of Castalla offers when you install and apply for them on your behalf.
Do you have a technical service in Castalla?
We respond within 24-48 hours. Many faults can be diagnosed remotely using inverter data; if needed, a technician travels to Castalla with the usual spare parts.
Do you install systems for businesses and warehouses in Castalla?
Yes: warehouses, shops and offices, from 10 kWp to several MW. A business with daytime consumption can save up to 70% on its bill and pay back the investment in 3-5 years.
Solar panels near Castalla
We also work in the neighbouring towns in the L'Alcoià area and beyond.
Want solar panels in Castalla?
Free consultation and no-obligation quote in under 24 hours.
