Sofar Solar Tri 9.9 kW Hybrid Inverter – ESI-9.9K-T1

Sofar Solar ESI-9.9K-T1 - The three-phase hybrid inverter that transforms your home

Free your energy

The Sofar Solar ESI-9.9K-T1 is a 9.9kVa three-phase hybrid inverter, ideal for homes and small businesses. It combines photovoltaic production, battery storage and near-instantaneous back-up power. It's a robust, silent, connected solution that brings you comfort, savings and peace of mind.

Why you'll love it

Modular, intelligent storage

• Compatible with Sofar BTS 5K batteries
• Autonomy customisable to your needs
• Capacity expandable from 5.12 kWh to 30.72 kWh (1 to 6 modules in parallel)
• Intelligent charge and discharge management to extend battery life

You only pay for what you need today, and you can upgrade tomorrow.

Ultra-fast back-up (<10 ms)

• Your essential devices remain powered without interruption
• Automatic switchover in the event of a power cut
• Your essential equipment (lights, fridge, internet box, computers) continues to work without interruption

Say goodbye to annoying power cuts and interruptions.

Optimised solar production

• 3 independent MPPTs to maximise yield even if your panels are installed on several roofs (different orientations, partial shading, etc.)
• Up to 20 kWp of panels

Every ray of sunlight is used to reduce your bill as much as possible.

Silent & robust

• Passive cooling without a fan: no noise, no maintenance
• IP66 rating: total protection against dust and rain

Discreet, durable and reliable for years of peace of mind.

Connected & intelligent

• Real-time monitoring via the SolarMan app (iOS & Android)
• Built-in connections: Wi-Fi, LAN, RS485, CAN (4G option)
• Integrated EMS (Energy Management System): intelligent energy management between panels, grid, batteries and domestic consumption

Everything under control, even remotely.

Economy & ecology

• Maximum efficiency of 98.2
• Significant reduction in grid dependency and energy bills
• A greener, more forward-looking home

You produce and consume your own energy, while contributing to the energy transition.

Concrete uses for the Sofar ESI-9.9K-T1

Residential use (main house)

• Solar self-consumption to reduce electricity bills
• Back-up power supply to avoid power cuts

Daily comfort guaranteed.

Professional use (small business / office)

• Continuity of power supply for computers, servers, cash registers, etc.

Protection against data loss and business interruptions.

Agricultural use

• Pumps, greenhouse lighting and ventilation systems are always operational.

A reliable tool that secures agricultural production.

Mobility use

• Recharging an electric vehicle with your own solar-generated electricity

You drive cleanly, using free, renewable energy.

Secondary use (holiday home)

• Remote management and batteries ready when you need them

Peace of mind and security, even when you're away.

SolarMan Smart

SofarSolar is redefining the future of energy with intelligent inverters. Equipped with advanced monitoring features, our inverters include WiFi Stick as standard, paving the way for seamless connectivity. Choose your path to efficiency with options such as Ethernet keys, GPRS or LTE. Turn every installation into a digital symphony, where solar power becomes a connected, intelligent and sustainable experience. SofarSolar, your partner for smarter, brighter energy.

Apple Store - Solarman Smart

Android - Google Play - Solarman Smart

Configuration steps:

1. After starting the application, register as a new user or enter your current SOLARMAN access data.
2. Create a new system and save the system data.
3. Scan the barcode on the stick logger to assign an inverter to the system.
4. Access the newly created system to configure the stick logger (device/logger).
5. Press the WiFi stick button for 1 second to activate the stick's WPS mode so that the smartphone can be connected to the WiFi stick.
6. Now select your local WiFi network for Internet access and enter your WiFi password.
7. The WiFi key is configured with the access data.

FAQ - Sofar Model ESI-9.9K-T1

How many panels should I install with the ESI-9.9K-T1?
Up to 20 kWp of solar panels can be connected to maximise production.

Can I start without batteries?
Yes, the inverter works without batteries in direct self-consumption mode. You can add storage later.

What battery capacity is recommended?

• 5 kWh: low-energy house or basic back-up
• 10 to 15 kWh: complete family home
• 20+ kWh: high consumption or small businesses

What happens in the event of a mains failure?
The UPS switches over in less than 10 ms: your equipment continues to run without interruption.

Is it silent?
Yes, as there is no fan, the cooling is totally passive: very quiet.

How long does it last?
The UPS is designed to last more than 10 years, with a manufacturer's guarantee (10-year guarantee, extendable under certain conditions).

The future of energy in your home

The Sofar Solar ESI-9.9K-T1 is more than just an inverter: it's the heart of your energy autonomy. With its 9.9 kW output, scalable storage and responsiveness, it ensures that your home is always supplied with energy, more economically and more ecologically.