Sync Energy Flow Hybrid Inverter 3.6kW / 6kW

£937.00

The Sync Energy Flow Hybrid Inverter is a flexible single-phase inverter designed for modern UK home energy systems. Available in 3.6kW and 6kW versions, it enables solar generation, battery storage and grid energy to work together efficiently within one smart platform.

Designed to pair with Sync Energy battery modules, this hybrid inverter allows homeowners to store solar energy, charge from off-peak tariffs and use stored power when needed. It supports both new installations and retrofit battery systems, making it a practical choice for installers building scalable home energy setups.

With dual MPPT tracking, high-efficiency conversion, IP65 protection and remote monitoring via app, it delivers reliable performance across a wide range of domestic properties. The inverter can be installed as part of a full system or as a battery-ready foundation for future upgrades.

Contact us for product guidance or compatibility support.

SKU: SEFHI36G
Free and easy returns | Easy to Install | Professional Installers Available
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The Sync Energy Flow Hybrid Inverter is a single-phase hybrid inverter designed to sit at the centre of modern UK home energy systems. Available in both 3.6kW and 6kW versions, it allows solar generation, battery storage and grid energy to work together efficiently within one intelligent platform. Whether installed as part of a new renewable setup or used to retrofit battery storage into an existing system, this inverter provides flexible energy control for domestic properties.

Manufactured by Sync Energy, the inverter is built to integrate directly with Sync Energy battery modules and broader home energy systems. Its hybrid design enables properties to store solar generation during the day, charge batteries from off-peak electricity tariffs and use stored energy when demand is higher. This makes it a practical solution for homeowners looking to optimise energy use without overcomplicating system design.

 

Hybrid Inverter for Solar and Battery Systems

The inverter supports dual MPPT inputs, high-efficiency conversion and scalable battery integration. Installers can use it as part of a full home energy system or specify it as a battery-ready upgrade for properties planning phased renewable installations.

  • 3.6kW and 6kW single-phase inverter options
  • Hybrid functionality for solar and battery storage
  • Dual MPPT tracking for flexible PV design
  • Compatible with modular battery expansion
  • IP65-rated enclosure
  • App-based monitoring and control
  • High conversion efficiency up to 97%
  • Suitable for retrofit or new-build installations

The hybrid design allows energy to be stored directly from solar panels or imported from the grid when required. This flexibility makes the inverter suitable for homes installing solar today as well as properties preparing for future upgrades such as battery storage or EV charging integration.

 

Designed for UK Installations

The Sync Energy Flow Hybrid Inverter has been engineered specifically for UK single-phase properties. It supports standard domestic electrical setups and includes integrated protection features to support safe and compliant installations.

With transformerless topology, intelligent fan cooling and a compact wall-mounted format, it fits neatly into utility rooms, garages or plant spaces. The inverter’s weather-resistant IP65 enclosure also allows installation in sheltered outdoor locations where required.

 

Smart Monitoring and Connectivity

Monitoring and system control are available through the Sync Energy app, allowing homeowners and installers to track generation, storage and consumption in real time. Connectivity options include Wi-Fi, Ethernet, CAN and RS485, making it easy to integrate into smart home and energy management setups.

If you’re wondering whether this inverter is suitable for a retrofit battery system or a full solar installation, it has been designed to support both. It can operate alongside solar panels, Sync Energy battery modules or as a standalone hybrid foundation ready for future expansion.

Refer to the technical specifications for full performance data, compatibility details and installation guidance.

 

System Integration and Compatibility

The Sync Energy Flow Hybrid Inverter is designed to operate as the central control point within a home energy system. It manages power flow between solar panels, battery storage and the grid, helping properties use energy more efficiently throughout the day. This makes it suitable for both new renewable installations and upgrade projects where battery storage is being added later.

Its hybrid capability allows installers to design systems that can grow over time. A property can begin with solar only, add battery storage later or install a full system from day one. This flexibility helps ensure long-term compatibility without needing to replace core equipment.

  • Compatible with solar PV systems
  • Designed for Sync Energy battery modules
  • Supports scalable home energy storage
  • Suitable for time-of-use energy tariffs
  • Pairs with home EV charging setups

By supporting both solar charging and grid charging, the inverter allows stored energy to be used when required. This helps create a balanced home energy system that adapts to household demand and future upgrades.

 

Performance and Efficiency

The inverter delivers high conversion efficiency and stable operation across a range of domestic applications. Dual MPPT tracking allows installers to design flexible PV layouts, while high-efficiency performance helps maximise usable energy from solar arrays and battery storage.

  • Power output: 3.6kW or 6kW
  • Single-phase UK supply
  • Dual MPPT tracking
  • Max PV voltage: 550V
  • Efficiency up to 97.6%
  • Transformerless design

These features make the inverter suitable for properties ranging from standard homes to higher-consumption households planning full electrification including heating or EV charging.

 

Dimensions and Installation

The inverter features a compact wall-mounted design suitable for installation in garages, utility rooms or plant spaces.

  • Wall-mounted installation
  • IP65-rated enclosure
  • Fan-assisted cooling
  • Low operating noise

Installers can pair the inverter with Sync Energy battery modules in a stacked floor-standing configuration, allowing flexible system layouts depending on available space.

 

Installer Guidance

Installation requirements

Designed for single-phase UK domestic installations. Suitable for solar-only systems, battery-ready installs or full hybrid systems combining solar and storage.

Battery compatibility

Pairs with Sync Energy Flow battery modules to create a modular storage system. Battery capacity can be increased over time by adding additional modules.

Monitoring and setup

System commissioning and monitoring are supported via app connectivity. Wi-Fi and Ethernet options allow integration into smart home and energy monitoring systems.

 

Wholesaler Support and Expertise

This product is supplied by a specialist UK electrical and renewable-energy wholesaler supporting installers and customers nationwide with technical guidance and product expertise.

We support installers specifying hybrid inverters and home battery systems, helping ensure compatibility across solar arrays, storage modules and wider home energy equipment.

 

Frequently Asked Questions

Can this inverter be installed without batteries?

Yes. It can operate with solar panels only and have batteries added later when required.

Is it suitable for retrofit installations?

Yes. The inverter can be used to add battery storage to existing solar systems or installed as part of a new setup.

Does it support remote monitoring?

Yes. Monitoring and system control are available through the Sync Energy app via Wi-Fi or Ethernet connection.

Is it compatible with UK supply?

The inverter is designed for UK single-phase installations and includes protection features suitable for domestic systems.

Can it work with EV charging?

Yes. It can form part of a wider home energy setup that includes EV charging and solar generation.

For help selecting the correct inverter size or confirming compatibility with your system, please contact us via our contact page.

BG

BG SyncEV was established in 2009 by two British entrepreneurs focused on improving the world through renewable energies. In 2015, they entered the electric vehicle charging industry, quickly becoming pioneers with the world's smallest EV charger.

NEXT DAY Delivery to Oxfordshire, Buckinghamshire and London via an EVERGY vehicle. Max of 1 ton weight.

 

Other delivery options via courier - 

NEXT DAY via FEDEX. Monday to Friday, Orders must be received by 2pm.

 

Regardless of spend, additional to any of the above charges – 

Before noon (FedEx Priority Express) = Guide Price £15.00 (calulated at checkout)

Before 10am (FedEx First) = Guide Price £20.00 (calulated at checkout)

 

Delivery of pallets - 

Palletised deliveries – Prices starting at £58

Multiple pallet orders can be quoted upon request (price dependent on number of pallets and postcode area)


Special delivery items may vary (non-stock products).

SAME DAY COLLECTION - Click & collect from Evergy Stores (Thame, Oxfordshire).

Sync Energy Flow Hybrid Inverter 3.6kW / 6kW

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