GivEnergy 3.0 kW AC‑Coupled Inverter (GIV‑AC3.0‑G1)

GivEnergy GIV-AC3.0-G1: The Flexible AC Coupled Inverter for Battery Retrofit Systems

The GivEnergy GIV-AC3.0-G1 is a compact, intelligent 3.0kW AC coupled inverter designed to enable energy storage in homes with existing solar installations. It’s the perfect solution for homeowners seeking to retrofit battery systems without replacing or modifying their current PV inverter. Compatible with GivEnergy’s smart EMS platform, it offers seamless system integration, real-time control, and energy optimisation via cloud connectivity.

Smart Storage Without Replacing Your Solar Inverter

Unlike hybrid inverters that require integration at the initial PV installation stage, the GIV-AC3.0-G1 connects on the AC side of the system. This allows it to work alongside your existing solar inverter, making it ideal for retrofit projects where homeowners want to add battery storage without a full system overhaul. It stores excess solar energy during the day and discharges it when your home needs it, reducing grid reliance and cutting electricity bills.

This AC coupling method is especially suited to UK homes that have benefited from legacy solar schemes or those who wish to upgrade their system in stages.

Seamless Compatibility with GivEnergy Batteries

The GIV-AC3.0-G1 is fully compatible with GivEnergy’s range of low-voltage battery systems. Whether you’re pairing it with a 5.2kWh, 9.5kWh or multiple battery units, the inverter ensures smooth operation, efficient charging cycles, and intelligent discharge during high-demand periods. The built-in communication protocols mean setup is quick, and your batteries are always monitored and managed via the central GivEnergy EMS or cloud platform.

• Low-voltage battery compatibility (48V)
• Plug-and-play with GivEnergy EMS for smart control
• Expandable for future energy needs

Remote Monitoring, Scheduling & Smart Controls

Take full control of your energy system with GivEnergy’s free app and cloud portal. The AC coupled inverter integrates seamlessly with the GivEnergy ecosystem, allowing remote updates, energy flow visualisation, and time-based scheduling to align with off-peak tariffs like Octopus Intelligent Go or Agile. This means you can charge batteries when rates are lowest and discharge when tariffs peak, saving you even more.

Key functions include:

• Live system monitoring and reporting
• Over-the-air firmware updates
• Manual or automated charging and discharging

Why Evergy Recommends This Product

The GIV-AC3.0-G1 is a standout solution for UK homes with existing solar PV systems. It offers a simple, cost-effective path to energy storage, enabling households to capture more of their solar and reduce grid dependence. Installers love its ease of setup, strong GivEnergy support network, and compatibility with the wider GivEnergy ecosystem, including their EMS, batteries, and monitoring platform. Whether you're working with FIT-era panels or planning a staged upgrade, this inverter makes storage accessible without rewiring your system.

Technical Specifications

• Rated Power Output: 3.0kW
• Battery Compatibility: GivEnergy 48V low-voltage batteries
• System Type: AC coupled (retrofit capable)
• Monitoring: WiFi / Ethernet via GivEnergy cloud portal
• Mounting: Wall-mounted

For full technical data, see the specification tab on this page.

Ideal For Domestic Retrofits and Modular Setups

This 3.0kW AC coupled inverter is ideal for homeowners who already have a solar PV system and want to add storage, particularly where replacing the existing inverter isn’t feasible or cost-effective. It’s also a great fit for customers looking to spread their renewable investment over time, starting with solar and adding batteries later. With support for multiple batteries and connection to the GivEnergy EMS, it’s highly scalable for future growth.

Warranty & Build Quality

GivEnergy inverters are engineered to the highest standards, using globally recognised component brands and strict in-house manufacturing control. The GIV-AC3.0-G1 is backed by a comprehensive 5-year manufacturer’s warranty as standard, with upgrade options available. Designed for indoor installation, the unit is compact, robust, and IP-rated for protection. Firmware updates are delivered remotely, ensuring long-term reliability and feature improvements.

Frequently Asked Questions

Can I use the GIV-AC3.0-G1 with my existing solar inverter?
Yes, that’s exactly what it’s designed for. It connects on the AC side, so there’s no need to change your current inverter setup.

What batteries are compatible with the GIV-AC3.0-G1?
It’s compatible with GivEnergy’s low-voltage (48V) battery range, including 5.2kWh and 9.5kWh models.

Is this inverter suitable for Octopus Agile or Intelligent Go tariffs?
Yes. When paired with the GivEnergy EMS and app, you can schedule charging during off-peak tariff periods to maximise savings.

How is the inverter monitored?
You can monitor the system using the GivEnergy cloud portal or mobile app via WiFi or Ethernet. It provides live updates, energy flow graphs, and control options.

Can I expand my system later?
Absolutely. The inverter supports additional batteries and works with the GivEnergy EMS to manage multiple components seamlessly.

Order from Evergy

Looking to enhance your solar setup with a reliable energy storage solution? The GivEnergy GIV-AC3.0-G1 AC Coupled Inverter is available now at Evergy. UK delivery available and trade support offered through our expert team. Visit our contact page to speak with an installer today or explore our full range of solar inverters and solar batteries.