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
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.
