SolaX X3 Ultra 30kW Three Phase Hybrid Inverter

£2595.95

The SolaX X3 Ultra 30kW is a high-output, three-phase hybrid inverter built for commercial and industrial-grade solar and storage systems.

Massive 45kW PV input capacity with 150% oversizing
Dual battery ports and 50A charge/discharge current
10ms EPS switchover and scalable backup function

Why we recommend this product: It’s the largest model in the Ultra range—ideal for demanding energy environments needing full-scale backup and flexibility.

SKU: X3-ULT-30K

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

Pallet Delivery *

SolaX X3 Ultra 30kW: Advanced Three-Phase Hybrid Inverter for High-Demand Systems

The SolaX X3 Ultra 30kW inverter is the powerhouse of the Ultra range. It’s built for large commercial properties, industrial applications, and extensive solar battery systems. With 45kW max PV input, dual battery connections, and lightning-fast EPS switchover, it delivers premium solar control and energy backup where it matters most.

High Capacity PV Input & Full Battery Integration

This inverter can accept up to 45kW of solar input with a 150% oversizing allowance. Dual MPPT trackers and two independent battery ports allow for balanced energy flow across PV arrays and storage systems.

Up to 45,000W PV input
Dual 30A battery ports with up to 50A discharge
Fully compatible with Solax and third-party batteries

Reliable EPS Backup & Smart Load Control

The Ultra 30kW includes an integrated Emergency Power Supply (EPS) with 10ms switchover. This ensures uninterrupted energy for priority circuits. Intelligent load shifting also helps optimise energy use based on solar production and time-of-use tariffs.

10ms EPS switchover time
Programmable time-of-use settings
Supports grid limitation and smart export control

Built for Demanding Energy Requirements

With 30kW AC output and scalable installation options, the Ultra 30kW is designed for factories, workshops, office buildings, and farms. It can serve as the heart of a large hybrid system with both grid and battery support.

Why Evergy Recommends This Product

Highest capacity in the X3 Ultra range
Ideal for commercial and industrial hybrid projects
Dual MPPTs and dual batteries increase flexibility

Technical Specifications

AC Output: 30kW
Max PV Input: 45kW
Max Discharge: 50A
EPS Output: 30kW (10ms switch)

See the specification tab or refer to the official SolaX X3 Ultra product page for full technical data.

Delivery

This item qualifies for free UK delivery. Larger orders may be shipped via pallet – see our delivery page for details.

Explore Other Options in the Range

Need something smaller? See the 20kW model or the 25kW inverter to find the right fit for your system.

Attribute name	Attribute value
Max Input DC Power	60,000W
IP Rating	IP66
Rated Power	30,000W
Battery Compatibility	Lithium-ion, 120-800V
MPPT Quantity	3
DC Start-up Voltage	200V
Backup Capability	EPS with <10ms switch time
Max Charge/Discharge Current	60A

X3-ULT-30K

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).