SolaX X1-IES 3.7kW Single Phase Hybrid Inverter

£870.00

SolaX X1-IES 3.7kW Hybrid Inverter offers smart solar energy conversion with battery compatibility and backup power support. Compact, powerful, and WiFi-ready.

3.7kW AC output with dual MPPT inputs
Connects to SolaX Triple Power and IES batteries
Supports EPS backup and smart energy scheduling

Why we recommend this product: It's ideal for homes wanting energy independence, tariff optimisation, and seamless solar+storage integration.

SKU: X1-IES-3.7K

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

Pallet Delivery *

SolaX X1-IES 3.7kW: Smart Single Phase Hybrid Inverter with EPS Backup

The SolaX X1-IES 3.7kW inverter delivers efficient solar energy conversion for domestic systems with added battery compatibility. Its hybrid design allows homeowners to store excess energy, power critical loads during outages, and maximise use of variable energy tariffs.

Flexible Solar + Battery Storage Control

This hybrid inverter seamlessly connects to both SolaX Triple Power batteries and IES modules. Designed for optimal self-consumption and backup readiness, it enables flexible load management and smart tariff-based scheduling.

Compatible with high-voltage LFP storage (Triple Power & IES)
Integrated EPS output for emergency backup
Supports automatic switching to stored power

Compact Design with Built-In WiFi

The X1-IES 3.7kW features a small footprint, low noise operation, and built-in WiFi for cloud-based monitoring via the SolaX Cloud. Ideal for UK homes with limited space or specific planning needs.

Why Evergy Recommend This Product

Perfect for homes looking to reduce reliance on the grid
Supports both self-consumption and backup use cases
Simple installation with smart control via app

Looking for More Power?

If you require a larger inverter for greater solar or battery input, view the SolaX X1-IES 5kW Hybrid Inverter.

Technical Specifications

AC Output: 3.7kW
MPPT Inputs: 2
EPS Backup Power: Supported

For full specifications, refer to the datasheet or product info tab.

Delivery

This inverter qualifies for free UK delivery. Pallet shipping may apply for multi-unit orders, see our delivery tab for details.

More About the X1-IES Range

Visit the SolaX IES series page to explore how this inverter fits into a complete home energy solution.

Attribute name	Attribute value
Type	Hybrid Inverter
Power	3.7kW
Oversizing	200% PV input
Input Current	20A DC
Low Voltage Start	Yes
Shadow Tracking	Yes
Charge/Discharge	50A
AI-Ready	Forecasting
VPP-Ready	Yes
Micro-Grid	Yes
Smart Load Management	Yes
Color	White
Power Rating	5kW
Design	All-in-one, expandable

X1-IES-3.7K

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).