SolaX Power Wins TÜV Rheinland “All Quality Matters” Award for Utility-Scale Inverter Excellence

At the prestigious All Quality Matters Solar & ESS Congress 2025, SolaX Power earned the TÜV Rheinland “All Quality Matters” Award for Excellence in Utility String Inverters, recognizing the outstanding performance of its X3-GRD-350K-HV model.

This accolade reinforces SolaX Power’s reputation as a global technology leader and benchmark for quality and reliability in the solar inverter industry — setting a new standard for utility-scale PV performance.

Recognition of Engineering Excellence

The TÜV Rheinland All Quality Matters award is based on a comprehensive multi-tier assessment system, ranking products across five levels: Basic Quality, Quality Plus, Advanced Quality, Premium Quality, and Ultra Quality.

SolaX’s X3-GRD-350K-HV stood out as the sole winner in the Quality Plus category, excelling across all test areas — from conversion efficiency and grid compliance to resilience under extreme thermal stress.

The inverter achieved:

• ✅ Superior performance under high-temperature and thermal cycling tests

• ✅ Exceptional conversion efficiency and power quality

• ✅ Verified safety, EMC, and reliability metrics under TÜV’s rigorous testing protocols

This award underscores SolaX’s uncompromising commitment to quality and its position as a trusted partner for global solar developers and EPCs.

Powerful Utility-Scale Solutions

The award-winning SolaX X3-GRD-350K-HV inverter is purpose-built for large-scale PV projects, offering a perfect balance of efficiency, scalability, and reliability.

Key Technical Highlights

• Rated Output Power: Up to 350 kW

• MPPTs: 6 independent trackers, supporting up to 30 strings

• PV Oversizing: Up to 150%, maximizing energy harvest under all conditions

• Peak Efficiency: Up to 99.03% with global MPPT scanning

• Protection: IP66, advanced surge protection, and operation up to 5000m altitude

• Smart O&M: Self-cleaning fans and remote monitoring for reduced downtime and maintenance costs

The X3-GRD-350K-HV forms the core of SolaX’s Utility-Scale PV Solutions, a fully integrated ecosystem that includes grid services, data monitoring, and lifecycle management — enabling developers to lower Levelized Cost of Energy (LCOE) while increasing project ROI.

TÜV Rheinland: Setting the Benchmark for Quality

The TÜV Rheinland “All Quality Matters” Award is one of the most respected quality recognitions in the renewable energy industry. Each year, the independent certification body evaluates products using standardized international testing protocols, assessing safety, efficiency, reliability, and long-term durability.

SolaX’s performance in the Utility String Inverter category highlights its dedication to engineering excellence and sustainable innovation, backed by globally recognized testing validation.

Driving the Global Energy Transition

This award aligns with SolaX’s vision “To be the trusted global leader in smart energy solutions.” By combining cutting-edge R&D with stringent quality control, SolaX Power continues to advance inverter technology that supports clean, resilient, and scalable solar infrastructure worldwide.

The X3-GRD-350K-HV exemplifies this mission — powering the next generation of large ground-mounted and utility-scale PV systems with superior efficiency, reliability, and grid intelligence.

“This award is a testament to our ongoing commitment to innovation, quality, and sustainable progress,” said a SolaX Power spokesperson. “We will continue to empower the world with reliable energy solutions that accelerate the global transition to clean power.”

Available for Project Integration at PV Solar Store

At PV Solar Store, we proudly support SolaX Power’s utility-scale and C&I inverter solutions, including the new X3-GRD-350K-HV.

We provide:

• ⚙️ High-efficiency string and hybrid inverters for C&I and grid-scale projects

• 🔋 Energy storage systems (AELIO, TRENE, ORI) for hybrid or full-ESS integration

• ☀️ Tier 1 solar panels (AEG, Trina, Jinko, Longi) for ground-mounted projects

• 🧱 Mounting systems, accessories, and engineering support for turnkey deployment

With fast European logistics, competitive pricing, and project design services, PV Solar Store ensures that EPCs, distributors, and developers can confidently deliver bankable, high-performance solar projects across Europe.

A Future Built on Quality

The TÜV Rheinland “All Quality Matters” Award is not just a recognition — it’s a reflection of SolaX’s vision for the future of solar energy.
Through continuous innovation, rigorous testing, and world-class engineering, SolaX continues to push the boundaries of what’s possible in inverter technology.

Explore SolaX utility and commercial inverter solutions now at PV Solar Store — and bring award-winning quality and performance to your next large-scale solar project.