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Off-grid and hybrid photovoltaic inverters

The brain of the system: it converts the panels’ energy and routes it intelligently between home, battery and grid.

From off-grid inverters for remote homes (BR-HSI 5 kW) to hybrid inverters with dual MPPT and backup (BR-SPI 10 kW, Solis 10–15 kW). Sized, delivered and commissioned by our own team.

Off-grid & hybridDual MPPT · backupParallel operation
Solis hybrid inverter
Off-grid vs hybrid

Which inverter type fits you?

The difference is not power, but the relationship with the grid. An off-grid inverter works in isolation; a hybrid one combines the grid, panels and battery — with automatic backup during outages.

Off-grid

Isolated system, no grid

The inverter powers the home directly from panels and battery. It does not depend on the grid and does not inject surplus — the energy you produce stays 100% yours.

Panels
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Inverter
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Home
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Battery
✓Total independence from the grid
✓Ideal where there is no connection
✓Pure sine wave for any load
Suited for: remote homes, cabins, farms, telecom relays, rural areas.
Hybrid

Grid-connected + battery

Combines grid, panels and battery. It maximizes self-consumption, injects the surplus and switches automatically to the battery during outages.

Panels
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Inverter
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Grid
✓Maximum self-consumption + auto backup
✓Dual MPPT — more energy harvested
✓Injects surplus, draws when needed
Suited for: grid-connected homes that want self-consumption, savings and backup.

Why the inverter matters

Dual MPPT
Harvests more energy
Connect panels on two different roof orientations (e.g. east and west) and harvest more energy, without one group dragging down the other.
99.9%
MPPT efficiency
Almost all the panel energy reaches the home or battery, not lost in conversion.
1–6
Paralleling
Up to 6 units in parallel (60 kW) and three-phase configuration with 3 inverters.
24/7
Time-of-use scheduling
Set when the battery charges and discharges — useful for day/night differentiated tariffs.
Consumption optimization

How the inverter optimizes home consumption

Panels produce the most at midday, but the home consumes the most in the morning and evening. The hybrid inverter moves energy where it is needed, hour by hour.

During the day you consume directly from the panels and charge the battery with the surplus; in the evening and at night you use the battery, drawing only the bare minimum from the grid.

Solar productionDirect self-consumptionFrom battery (evening)From grid (night)Home consumption
0 kW1 kW2 kW3 kW4 kW5 kW6 kW00:0002:0004:0006:0008:0010:0012:0014:0016:0018:0020:0022:00

Illustrative example of a sunny day; real curves depend on consumption, system size, season and panel orientation.

The inverter range

Three inverters, from off-grid to three-phase hybrid

All compatible with 48 V LiFePO4 batteries (including the BRLV series) and sized to your consumption and panels.

Off-grid
BR-HSI 5000AP
5 kW
Pure sine wave · 48 V
Recommended: remote homes, cabins, farms, telecom
Output230 Vac sine
Peak10,000 VA
Max PV7,500 W
MPPT efficiency99.9%
on request
Request a configuration
Most versatile
Hybrid
BR-SPI 10K-SP
10 kW
Dual MPPT · parallel 1–6 · three-phase
Recommended: homes with battery and backup
Peak15,000 W
MPPTdual · 5,500+5,500 W
Charge current200 A
Parallelup to 60 kW
on request
Request a configuration
Hybrid
Solis Hybrid
10–15 kW
Single / three-phase · EU service
Recommended: large homes, three-phase, light commercial
Single-phase 10 kW€2,160
Three-phase 15 kW€2,800
MPPTdual
Compatible48 V batteries
from €2,160excl. VAT
Request a configuration
An inverter alone is not a complete system: it is sized together with the panels, battery and home consumption. For a complete system — inverter + battery + installation + commissioning, turnkey — see the hybrid kits.See the hybrid kits →

Full technical specifications

Official data from BR Solar and Solis datasheets — open the model you are interested in.

Input / output
Output power5,000 W
Peak10,000 VA
AC output230 Vac · 50/60 Hz
MPPT efficiency99.9%
Battery & PV
Battery voltage48 Vdc
Max PV7,500 W
PV voltage (VOC)500 Vdc
MPPT range60–450 Vdc
Physical & communications
CommunicationsRS485 / USB / Wi-Fi
Dimensions359 × 290 × 133 mm
Weight8.5 kg
Warranty2 years
Price on request · 2-year warranty · parallel up to 6 units

Source: BR Solar (BR-HSI 5000AP, BR-SPI 10K-SP), Solis datasheets and VistaVerde's quote. Full PDF documentation available on request.

Which inverter do I choose for my project?

The choice depends on the grid connection, system power and phase type.

I have no grid connection
Off-grid inverter
BR-HSI 5000AP — an isolated system with battery, for homes, cabins and rural applications without a grid.
I have a grid and want self-consumption + backup
Hybrid inverter
BR-SPI 10K-SP or Solis — maximize self-consumption, inject the surplus and get automatic backup during outages.
I have high or three-phase consumption
Three-phase hybrid
Solis 15 kW three-phase or 3× BR-SPI in parallel — for large homes, workshops and light commercial.
Want the complete turnkey system?

In a hybrid kit you get the inverter, battery, installation and commissioning in a single offer — with a final price agreed before the start.

See the 5–15 kW hybrid kits
FAQ

Frequently asked questions about inverters

An off-grid inverter works isolated from the grid: it powers the home from panels and battery, but does not inject surplus or draw from the grid. A hybrid inverter is grid-connected: it maximizes self-consumption, injects the surplus, draws from the grid when needed and switches automatically to the battery during outages. In short: off-grid for places with no connection, hybrid for grid-connected homes.

Find out which inverter fits you

Send us your consumption, whether you have a grid connection and which battery you want. We'll get back to you within 48 hours with the recommended inverter and a final offer.

Request a project analysis

Reply within 48h · Technical recommendation · Final agreed price