Fox ESS H3 12.0kW Three-Phase Hybrid Inverter

£1229.13

The Fox ESS H3 12.0kW Three-Phase Hybrid Inverter is engineered for high-demand energy systems, offering seamless integration of solar generation and battery storage for commercial and expansive residential applications.

High Power Output: 12.0kW capacity suitable for substantial energy demands
Dual MPPTs: Optimises energy harvest from varied panel orientations
Durable Design: IP65-rated for reliable outdoor installations
Smart Monitoring: Remote system management via smartphone app or web portal

SKU: FE-H3-12.0
Free and easy returns | Easy to Install | Professional Installers Available
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Fox ESS H3 12.0kW Three-Phase Hybrid Inverter: High-Capacity Energy Solution for Commercial and Large Residential Systems

The Fox ESS H3 12.0kW Three-Phase Hybrid Inverter is designed to meet the rigorous energy demands of commercial establishments and large residences. It efficiently manages energy flow between extensive solar panel arrays, compatible high-voltage batteries, and the grid, ensuring optimal performance and energy utilisation.

Optimised Energy Harvesting with Dual MPPTs

Equipped with two Maximum Power Point Trackers (MPPTs), the H3 12.0kW inverter maximises energy harvest from solar panels, accommodating various roof orientations and layouts for optimal performance.

Robust and Weather-Resistant Design

With an IP65 rating, the inverter is protected against dust and water ingress, making it suitable for both indoor and outdoor installations. Its durable construction ensures long-term reliability in diverse environmental conditions.

Advanced Monitoring and Control

The H3 12.0kW supports remote monitoring through a dedicated smartphone app or web portal, allowing users to track system performance, manage settings, and receive real-time updates, enhancing user engagement and system oversight.

Seamless Integration with High-Voltage Batteries

Designed to work with Fox ESS high-voltage lithium-ion batteries, the inverter facilitates efficient energy storage and usage, contributing to reduced energy bills and increased energy independence.

Why Evergy Recommends This Product

The Fox ESS H3 12.0kW inverter stands out for its high power capacity, advanced MPPT technology, and robust design, making it an excellent choice for commercial and large residential properties seeking a reliable and efficient energy solution.

Technical Specifications

  • Rated Power: 12,000 W
  • Efficiency: Up to 98%
  • MPPTs: 2
  • Dimensions (W x H x D): 449 x 519 x 198 mm
  • Weight: 28 kg

For more detailed specifications, please refer to the datasheet available in the product resources section.

Explore Related Products

If you're considering other options, explore the Fox ESS H3 8kW Three-Phase Hybrid Inverter for medium-sized systems or the Fox ESS H3 10kW Three-Phase Hybrid Inverter for larger installations.

Enhance Your Solar Knowledge

To learn more about home solar setups, see our guide on solar panel systems for homes in the UK or explore available incentives in our article on solar panel grants and funding available in 2025.

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).

Fox ESS H3 12.0kW Three-Phase Hybrid Inverter

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