SolaX X3-IES 8kW Three-Phase Hybrid Inverter

£1490.95

The SolaX X3-IES 8kW is a high-efficiency hybrid inverter designed for three-phase solar and battery systems in larger homes or light commercial use.

8kW three-phase solar inverter with battery support
EPS functionality included for backup supply
WiFi monitoring via SolaX Cloud

SKU: X3-IES-8K

Free and easy returns | Easy to Install | Professional Installers Available

Pallet Delivery *

SolaX X3-IES 8kW Hybrid Inverter: Smart Three-Phase Solar with EPS & Battery Integration

The SolaX X3-IES 8kW hybrid inverter is ideal for medium-to-large residential solar systems or small businesses. It combines solar power, energy storage and EPS backup capabilities in one smart three-phase solution.

Efficient Energy Management Across Three Phases

This 8kW model is built to manage higher energy loads across three phases. With up to 12kWp PV input, it ensures high output and stable energy use throughout the day.

Supports high-voltage batteries (80V–600V)
Efficiency: up to 98.2%
Multiple MPPTs for optimal PV tracking

Emergency Power Supply Built In

Power cuts? The X3-IES 8kW has you covered. With Emergency Power Supply (EPS), essential circuits continue running directly from battery backup.

Seamless EPS switch over
Output covers essential circuits up to 8kW

Smart Monitoring via the SolaX Cloud

View energy performance from anywhere. Included WiFi module connects your system to the SolaX Cloud, giving full visibility of usage, generation, and storage.

Track performance in real time
Supports alerts and remote updates

Why Evergy Recommends This Product

Perfect balance of output, efficiency, and flexibility
Three-phase-ready with built-in EPS backup
Reliable 10-year warranty from SolaX

Explore the Full X3-IES Range

Choose the right size for your energy needs. Browse other models here:

Learn more on the official SolaX X3-IES page.

Delivery

Free UK delivery on this product. Larger palletised orders may vary – check the delivery tab for full information.

Let’s Get You Started

Maximise your solar setup with the 8kW SolaX X3-IES. Need system design advice or a quote? Call us on 01844 393939.

Attribute name	Attribute value
Other Features	AI-ready forecasting, micro-grid operation
IP Rating	IP66
Backup Power	<10ms switchover, 200% EPS overload
Power Rating	8kW
Design	Modular, plug-and-play
PV Oversizing	Max 200%
MPPT Input	Max 20A per MPPT (2 MPP trackers)
Energy Management	AI-driven with 3-phase unbalanced output

X3-IES-8K

SOLAX

Established in 2012, SolaX is an internationally renowned provider of photovoltaic energy storage systems. They offer energy storage inverters, batteries, and grid-connected solutions to customers worldwide. SolaX ranks among the top three globally in market share for household photovoltaic energy storage systems.

Free delivery -

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

Other delivery options via courier -

FREE NEXT DAY (*orders over £50, some batteries and inverters will require an additional fee) via FEDEX. Monday to Friday, up to 30kg, Max box size 50cm x 50cm x 50cm (volume). Orders must be received by 2pm.

Anytime NEXT DAY delivery – under £50 = £6.50 (depending on location, weight and size)

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).