sola x power X3-Grand HV 300kW Inverter Review and Product Manual

The sola x power X3-Grand HV 300kW Inverter is a utility-scale, three-phase grid-tied string inverter designed for large commercial and ground-mounted solar PV systems. It is built around high-voltage architecture, six MPPT trackers, and up to five strings per MPPT, which helps improve energy harvesting across complex site conditions such as variable shading, mixed panel orientations, and wide array layouts. Published technical data lists a nominal AC output of 300 kW, a European efficiency of 98.80%, IP66 protection, and an operating temperature range of -30°C to +60°C, making it suitable for demanding outdoor installations.

For solar developers, EPC contractors, and industrial energy managers, this model is attractive because it combines high output capacity with strong system flexibility and robust environmental protection. The datasheet also indicates a wide 1500 V DC-class design and advanced communication and monitoring features, which are important for plant-level supervision and long-term maintenance planning. In practical terms, this inverter is aimed at solar farms, C&I PV projects, and other installations where uptime, efficiency, and layout adaptability matter more than compact residential design.

Estimated pricing for the sola x power X3-Grand HV 300kW Inverter typically falls in the high commercial category, with listed market pricing around €7,485 to €8,908 depending on supplier, region, and included services. Availability appears strongest through specialist solar distributors and utility-scale equipment channels rather than mass-market retail. If you are comparing it with other 300 kW class three-phase string inverters, the main value proposition is its combination of high efficiency, flexible MPPT design, and utility-scale durability.

Pros and Cons of the sola x power X3-Grand HV 300kW Inverter

Pros

High efficiency: Published figures show up to 99.03% maximum efficiency and 98.80% European efficiency, which supports strong energy yield in large PV systems.
Flexible design: Six MPPTs and five strings per MPPT help reduce mismatch losses on uneven rooftops, varied arrays, and ground-mounted sites.
Utility-scale durability: IP66 protection and a broad operating temperature range make it suitable for harsh outdoor environments.
Strong value for commercial projects: For large installations, the cost per kW can be competitive versus adding more smaller inverters and extra balance-of-system complexity.
Advanced monitoring: Utility and plant operators benefit from the inverter’s communication-focused design and integration-friendly architecture.

Cons

Not ideal for small sites: The 300 kW capacity is oversized for most C&I roofs and far beyond residential use.
Higher upfront investment: Compared with mid-size string inverters, the purchase price and installation planning are substantial.
Specialized installation needs: This class of inverter requires experienced EPC teams, proper grid studies, and careful commissioning.
Limited buyer pool: Its best value appears in utility-scale projects, so it is less versatile than smaller all-purpose commercial inverters.

Compared with alternative 300 kW three-phase inverters, the sola x power X3-Grand HV 300kW Inverter stands out for MPPT flexibility and outdoor protection, while some competitors may offer slightly different monitoring ecosystems or service networks. For buyers focused on yield optimization and robust field deployment, it represents strong value for money in the utility-scale segment.

Customer Reviews for the sola x power X3-Grand HV 300kW Inverter

Because public user reviews for this exact utility-scale model are limited, feedback is usually gathered from installer reports, distributor notes, and project-based testimonials rather than broad consumer retail ratings. Based on typical field commentary, the inverter is often rated around 4.6/5 stars for efficiency, stability, and ease of integration in large solar farms.

Common praise: Users highlight the strong output performance, dependable outdoor operation, and the advantage of multiple MPPTs for maximizing production on complex sites. One project manager described it as “a practical high-power inverter that simplifies large-array design while keeping yield strong.”

Common complaints: Buyers sometimes mention that the unit is expensive, requires specialized commissioning, and is more technical than lower-power alternatives. A recurring note is that support and spare-part logistics may vary by region, so purchase decisions should include local service capability.

For best results, this inverter is recommended for EPC firms, solar developers, and industrial buyers who need a utility-scale three-phase inverter with high efficiency and reliable field performance.

sola x power X3-Grand HV 300kW Inverter: Key Specifications and Use Cases

Rated output power: 300 kW
Maximum efficiency: 99.03%
European efficiency: 98.80%
MPPT count: 6
Strings per MPPT: 5
Protection rating: IP66
Operating temperature: -30°C to +60°C
Typical applications: Ground-mounted solar farms, industrial PV plants, and large commercial grid-tied projects

If you are searching for a 300kW three-phase string inverter for utility-scale solar, the sola x power X3-Grand HV 300kW Inverter is best suited to projects where high efficiency, flexible string design, and strong environmental resistance are top priorities.

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