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Detached villa around the Montgó · Jávea · On & off-grid

Off-grid villa in Jávea with 40 glass-glass panels, a battery and a charging point

How a modern detached villa around the Montgó in Jávea became fully self-sufficient: 40 JA Solar glass-glass panels of 465 Wp on mounting frames on the flat roof, 18.6 kWp together, tied to a Growatt WIT 15K-HU off-grid inverter, a battery of around 28 kWh and a smart Growatt THOR charging point that charges from its own solar first — sized for the house, pool, air-conditioning and the car, and legally registered off-grid.

Glass-glass solar panels on mounting frames on the flat roof of a modern villa around the Montgó in Jávea

100%

own power

Type
Detached villa
Location
Jávea
Service
On & off-grid
Power
18.6 kWp · 40 panels
Lead time
around 6 weeks

Our story

How a modern detached villa around the Montgó in Jávea became fully self-sufficient: 40 JA Solar glass-glass panels of 465 Wp on mounting frames on the flat roof, 18.6 kWp together, tied to a Growatt WIT 15K-HU off-grid inverter, a battery of around 28 kWh and a smart Growatt THOR charging point that charges from its own solar first — sized for the house, pool, air-conditioning and the car, and legally registered off-grid.

The situation at the villa around the Montgó in Jávea before the installation

Chapter 1

The situation

A modern detached villa around the Montgó in Jávea, with a flat roof, large glass and a pool, wanted to be rid of the electricity bill and sure of power for the house, pool, air-conditioning and the electric car — off the grid and away from the grid operator.

The challenge on this project in Jávea

Chapter 2

The challenge

Set up a large, fully self-sufficient system that runs the house, pool and the car on solar and battery, with the panels neatly on mounting frames across the flat roof — sized to the real consumption including the charging, and legalised, so insurance and resale are covered.

Our approach at the villa around the Montgó in Jávea

Chapter 3

Our approach

We fitted 40 JA Solar glass-glass panels of 465 Wp, 18.6 kWp together, on mounting frames spread across the flat roof. We tied those to a Growatt WIT 15K-HU off-grid inverter (15 kW, three-phase), a battery bank of 6× Growatt AXE totalling around 28 kWh (48 V) and a smart Growatt THOR charging point (11 kW) that charges from the solar surplus first — together sized for the house, pool, air-conditioning and the car, with reserve for dark days. We legalised the whole system with a proyecto técnico (by an engineer), boletín and registration with Industria.

The result

100%

Own power

The house, pool and the car off the grid, on 18.6 kWp of solar and a battery of around 28 kWh.

registered

Fully legalised

Legally registered off-grid, so insurance and resale are covered.

priority

Charging on its own solar

The charging point and the battery fill from your own solar surplus first.

The proof

Happy Solarfit customer in front of the villa around the Montgó in Jávea
“The house, the pool and the car, all on our own solar — and everything handled in our own language.”
Homeowner Jávea

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