Fox ESS H3-PRO-20.0 20kW Inverter: The Very High Power Three-Phase Hybrid Solar Inverter

The Fox ESS H3-PRO-20.0 delivers a massive 20kW of three-phase hybrid inverter power, making it a formidable solution for large residential estates or commercial properties. Designed to manage extensive solar panel systems and significant high voltage battery storage, this inverter provides unparalleled control over energy generation, storage, and grid interaction, ensuring optimal efficiency and energy independence.

Maximum Solar Harvest with Triple MPPT

Even the most complex solar installations can be optimised with the H3-PRO-20.0. Featuring three independent Maximum Power Point Trackers (MPPTs), as confirmed in the product datasheet, it efficiently manages power from multiple panel strings. This is ideal for large roofs with various orientations or shading challenges, ensuring every possible watt is harvested from your substantial solar panel array (up to 10kW DC input per MPPT recommended).

High-Capacity Battery Energy Storage Management

This inverter is built to handle serious energy storage. It integrates directly with compatible high-voltage LFP batteries (150-800V range) and features dual battery inputs capable of a combined 50A+50A charge/discharge current, according to the technical specifications. This allows for rapid charging of large battery banks from surplus solar and efficient discharging to meet high power demands, day or night.

Drive Down Costs with Efficiency & Smart Control

Achieve significant energy savings through intelligent power management. The H3-PRO-20.0 boasts impressive efficiency credentials (Max. Efficiency 97.80% noted in the tech specs). By storing vast amounts of solar energy, you minimise reliance on expensive grid electricity. Its compatibility with smart energy management strategies also opens possibilities for leveraging time-of-use tariffs, potentially charging batteries with cheaper off-peak grid energy for later use.

Uninterruptible Power with 20kVA EPS

Power through grid failures with confidence. When coupled with a suitably sized high-voltage battery bank, the H3-PRO-20.0 provides an exceptionally powerful 20kVA three-phase Emergency Power Supply (EPS). The manufacturer's data indicates a switchover time of less than 20 milliseconds, offering near-instant backup power to keep critical three-phase or single-phase loads operational during outages.

Robust, Reliable & Remotely Monitored

Engineered for demanding applications, the H3-PRO-20.0 has an IP65 rating for outdoor suitability (ensure professional installation with correct solar cabling and solar mounting). Smart fan cooling maintains optimal operating temperatures. Monitor every aspect of your powerful system remotely using the Fox ESS Cloud platform, accessible via app or web portal (requires optional communication module).

Why Evergy Recommend This Product

The Fox ESS H3-PRO-20.0 is a top-tier choice for high-power needs:

• Very High Power Output: 20kW three-phase capacity suits large-scale residential or commercial use.
• Triple MPPT Flexibility: Optimises generation from extensive and complex solar arrays.
• Large-Scale Battery Ready: High current and dual inputs support significant energy storage.
• Powerful Backup: Delivers substantial 20kVA three-phase EPS power (with batteries).
• Advanced Energy Management: Maximises self-sufficiency and offers potential tariff optimisation.

Ideal For / Target Audience

This 20kW three-phase hybrid inverter is designed for:

• Large residential properties with three-phase power and very high energy usage.
• Commercial premises (e.g., offices, workshops, farms) seeking to reduce energy costs.
• Installations with extensive solar panel systems across multiple roof areas.
• Users requiring significant three-phase backup power capacity.
• Customers demanding maximum control and optimisation of their solar and storage investment.

Technical Specifications Overview

Key specifications for the H3-PRO-20.0 from the datasheet include:

• Nominal AC Output Power: 20000VA
• Max. Battery Charge/Discharge Current: 50A + 50A
• Number of MPP Trackers: 3
• Max. Efficiency: 97.80%
• EPS Output Power: 20000VA (Three Phase)
• Protection Degree: IP65

For complete technical information, please view the specifications tab or the full Fox ESS H3 Pro datasheet. Alternative models in this series include the H3-PRO-15.0 (15kW), H3-PRO-25.0 (25kW), and H3-PRO-30.0 (30kW).

Command Your Energy Future

Choose the Fox ESS H3-PRO-20.0 hybrid inverter for unmatched power and control in your large three-phase energy system. Integrate with compatible high voltage batteries and high-yield solar panels. Contact Evergy's specialists to discuss your high-power solar and storage requirements.