SolaX X1 Mini G4 1.5kW Single Phase String Inverter

£204.80

The SolaX X1 Mini G4 1.5kW inverter is ideal for small domestic solar systems, offering superb efficiency, wide MPPT range and IP66 protection.

  • 1.5kW AC output with 200% DC oversizing
  • Wide MPPT range: 40–530V
  • Natural cooling, ultra-quiet operation

Why we recommend this product: It’s a compact, efficient choice for homes with limited solar capacity or roof space.

SKU: X1-MINI-1.5K-G4
Free and easy returns | Easy to Install | Professional Installers Available
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SolaX X1 Mini G4 1.5kW: Smart Solar Inverter for Small Home Systems

Whether you’re starting small or working with a compact rooftop setup, the SolaX X1 Mini G4 1.5kW inverter provides high performance in a lightweight, IP66-rated unit. Designed to support PV installations with modest output, it delivers reliable power conversion and silent operation thanks to natural cooling.

Optimised Performance for Modest Systems

The 1.5kW G4 model supports 200% DC oversizing, enabling users to install extra panel capacity without overloading the inverter. This results in improved generation across more hours of the day.

  • AC output: 1500W
  • Max PV input: up to 3000Wp
  • MPPT voltage window: 40–530V

Robust, Weather-Resistant Build

With IP66-rated protection and reliable performance from -25°C to 60°C, this inverter is perfect for UK outdoor conditions. Its quiet, fanless design also makes it suitable for indoor installation if preferred.

Why Evergy Recommend This Product

  • Supports efficient solar use on limited roof space
  • Minimal maintenance, thanks to passive cooling
  • Well-supported brand with local UK warranty

Compare Other Sizes

Need more or less power? Explore the full SolaX X1 Mini G4 range or view:

Technical Specifications

  • Rated output: 1500W
  • Max efficiency: 98.3%
  • DC oversizing: up to 200%

Full specs are available in the data sheet or under the specification tab.

Delivery

This inverter qualifies for free UK delivery. See delivery tab for more details on lead times or pallet shipping if ordering in bulk.

Add the SolaX Pocket WiFi 2.0 to your system for live performance monitoring and remote access.

Attribute nameAttribute value
Other FeaturesSupport for external rapid shutdown, EV charger adaptation
IP RatingIP66
Rated Power1500W
Max Input Voltage450V
MPPT Quantity1
DC Start-up Voltage50V
Efficiency98%
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.

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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).

SolaX X1 Mini G4 1.5kW Single Phase String Inverter

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