SolaX X3 Ultra 15.0kW Three-Phase Hybrid Inverter

SolaX X3-Ultra 15.0kW Three-Phase Hybrid Inverter

The SolaX X3-Ultra 15K is a premium hybrid inverter designed for commercial and industrial sites where energy independence, battery integration, and grid resilience are essential. This 15kW model brings together intelligent controls, high-efficiency solar conversion, and a robust EPS system – all engineered to deliver around-the-clock reliability in real-world installations.

High-Capacity, Triple MPPT PV Input

With three independent MPPTs supporting two strings each, the X3-Ultra 15K allows for versatile array layouts and effective partial shading mitigation. Each tracker supports:

• 36A input current and 45A short circuit rating – ideal for modern high-output PV modules.
• MPPT voltage range: 160–950V with a 1000V max input – offering broad compatibility with system sizes up to 30kW.
• 200% PV oversizing: Optimised to accept arrays up to 30kW on a 15kW output inverter, boosting generation in low-light conditions.

Advanced Hybrid Storage with Dual Battery Ports

This model supports two independent battery banks (lithium-ion, 120–800V), allowing flexible energy storage expansion. Key features include:

• 60A charge/discharge rate: Each battery port enables high throughput for fast cycling and response.
• Independent battery control: Allows future retrofitting or scaling of capacity without replacing the inverter.
• Smart scheduling: Supports 7x24h load management across all sources, with user-defined grid interaction settings.

Powerful Emergency Backup (EPS) Capabilities

In the event of grid failure, the X3-Ultra 15K delivers:

• Switch-over in <10ms – seamless backup ensures no interruption for connected loads.
• EPS peak output: Delivers up to 30kW (200% of rated output) for 10 seconds – critical for motor starts and load spikes.
• Half-wave load support: Operates even with challenging or inductive loads.
• EPS usable without battery: Inverter can support loads directly from PV during daylight hours in EPS mode.

Grid-Ready, Microgrid Compatible & AI-Controlled

Built for the smart grid era, the X3-Ultra series enables sophisticated energy routing and connectivity:

• AI Energy Forecasting: Predicts solar production and consumption trends to enhance efficiency.
• Virtual Power Plant (VPP) Ready: Compatible with aggregators and cloud-based dispatch systems via SolaX Cloud.
• Wireless metering support: Enables simplified installation and remote diagnostics.
• Supports generator integration: Ideal for off-grid hybrid or backup-augmented solar systems.

Robust Safety & Protection Features

The unit is engineered for maximum resilience and grid compliance, featuring:

• IP66-rated enclosure: Withstands dust and heavy rain for outdoor installation.
• Type II surge protection: Installed on both AC and DC circuits to guard against grid spikes.
• Full protection suite: Includes AFCI (optional), insulation monitoring, DC polarity reversal, AC overcurrent/overvoltage, and thermal protection.
• Low night-time consumption: <10W standby load keeps operating costs minimal.

Why Evergy Recommends This Product

• Commercial-Ready Performance: Designed for mid-scale hybrid PV systems with demanding load requirements.
• Unmatched Backup Reliability: Near-instant switchover, 200% peak EPS power, and resilience against wave distortions.
• Smart Grid Future-Proofing: Equipped for VPP, microgrid use, AI-based control, and scalable battery design.
• Durable & Compliant: Certified for UK and European grid codes, including G99, EN50549, and VDE4105.

Technical Specifications Highlights

• Rated Output Power: 15kW
• Max PV Input: 30kW (200%) / 1000V DC max / 3 MPPTs
• Battery Range: 120–800V (Li-ion), 60A bi-directional
• EPS Output: 30kW peak for 10s / <10ms transfer
• Efficiency: Max 98%, MPPT 99.9%
• Protection Rating: IP66
• Dimensions: 696 × 526 × 240 mm
• Weight: 47 kg

Explore the X3-Ultra Family

• SolaX X3-Ultra 20kW
• SolaX X3-Ultra 25kW
• SolaX X3-Ultra 30kW

Delivery & Installation Support

This model qualifies for free UK shipping. For full hybrid setups, we strongly recommend using an MCS-certified commercial solar installer. Contact us to discuss sizing, battery pairings, and delivery lead times.