KiDi Solar · Sample Quote
Peek Inside a Solar Backup Quote for a Marbella Villa
See how a solar backup quote is built: what each line covers, what it costs and what depends on your survey. This is a sample quote with illustrative figures for a villa in Marbella, using a Growatt WIT 10K-HU hybrid inverter and a 16 kWh LiFePO4 battery.
330+
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5.0
LiFePO4
Storage
Before You Read
Why Standard Solar Switches Off in a Blackout
A grid-connected solar system without a battery shuts down when the grid fails, even in full sun. A hybrid inverter with a battery avoids this, and the Growatt WIT 10K-HU has the backup function built in. That is why a quote for it does not include a separate external backup box.
Without backup
Panels stop with the grid. Your fridge, lights and internet stop too.
With a hybrid inverter and battery
Your chosen circuits keep running from solar and stored energy. Read more on our backup power page.
Quote Breakdown
A Sample Proforma for a Marbella Villa
This is the format of the proforma we send after your free survey. The client, address and figures below are fictional and for illustration only. Your quote is based on your own survey.
Pl. del Pilar, 1, edf. Torre 11
29601 Marbella, Málaga
info@kidi-solar.es
+34 677 307 907
Villa Example, Urb. Ejemplo
29600 Marbella, Málaga
client@example.com
| # | Description | Units |
|---|---|---|
| 1 | Three-phase hybrid inverter Growatt WIT 10K-HU with built-in backup function | 1 unit |
| 2 | AIKO Neostar 2S 510 W Full Black solar panels | 12 panels |
| 3 | Aluminium mounting structure | 12 units |
| 4 | Growatt smart meter with current transformers | 1 unit |
| 5 | Electrical materials: cabling, circuit breakers, surge protection, backup circuit board, fuses and other necessary materials | 1 lot |
| 6 | Installation (structure, solar panels, inverter and battery) | 1 service |
| 7 | Legalisation and certificates | 1 service |
| 8 | Low-voltage LiFePO4 battery, 16 kWh | 1 unit |
Equipment
Inverter, panels, structure, smart meter and battery are listed with exact models and quantities, so you can compare quotes line by line.
Installation and materials
Installation and electrical materials, including the backup board, are included in the quote as one lot, not as hidden extras.
Legalisation
Certificates and legalisation are part of the quote, so the system is registered correctly.
Your Choice
Part of the House vs Whole House
Backup is sized by what you connect. Every extra circuit adds load, so the inverter, battery and wiring grow with it. Splitting out the critical circuits keeps the system smaller and the quote lower.
| Part of the house | Whole house | |
|---|---|---|
| What stays powered | Circuits you choose: fridge, lights, internet, security | All circuits, including air conditioning and pool pump |
| Battery needed (10 h, no sun)* | About 3 kWh, one 16 kWh battery | About 43 kWh, three 16 kWh batteries |
| Battery price | From €2,200 | From €6,600 |
| Backup connection | Quoted after survey | Quoted after survey |
*From our backup calculator. These are planning estimates; we confirm real loads at the survey.
Good to Know
What Can Change the Price
Your electrical panel
Its layout and age affect how the backup board is connected.
Number of circuits
More circuits mean more wiring and usually more battery.
Existing solar
If you already have panels, we check whether your current inverter can be used or replaced.
FAQ
Frequently Asked Questions
No. It is a sample with illustrative figures that shows how our quotes are structured. Your price depends on your villa, your electrical panel and what you want to keep powered.
It depends on how your electrical panel is arranged and on how many circuits you want to back up, either part of the house or the whole house. We measure this at the free survey.
No separate backup box is needed. The Growatt WIT 10K-HU has a built-in backup output.
In many cases yes. We plan the backup board so that more circuits can be added. We confirm what is possible for your property at the survey.
Free Solar Survey
FREE BACKUP POWER ASSESSMENT
Save This Year
Get a personalised battery storage recommendation based on your electricity consumption, solar production and backup priorities. We’ll help you understand the right battery capacity, inverter compatibility and installation options for your property.
- Electricity consumption review
- Battery capacity recommendation
- Hybrid inverter compatibility check
- Backup options for selected circuits
- Written battery storage proposal
Get a Free Quote
Tell us about your property and existing solar system. Our team will contact you to discuss the right battery storage solution.