Explore enPrimo’s 350 kW solar inverter for utility projects in India—99.05% efficiency, 1500 V, 6 MPPTs, IP66 protection and smart O&M.
350 kW Solar Inverter: A High-Efficiency Choice for Utility-Scale Solar Projects in India
A 350 kW solar inverter is a high-capacity, three-phase grid-tied inverter that converts direct current from a large solar PV array into grid-compatible alternating current. It is designed for utility-scale solar farms, ground-mounted plants, large commercial and industrial projects, and installations where high energy yield, dependable grid support and low operating costs are essential.
As India develops more utility-scale and C&I solar projects, inverter selection has become a major performance decision. It influences conversion efficiency, availability, protection, grid compliance and maintenance. The enPrimo ENP-GU350K-G2 is engineered as an India-ready 1500 V, 350 kW solar inverter.
What Does a 350 kW Solar Inverter Do?
Solar modules generate DC electricity. The inverter tracks the array’s maximum power point, converts DC into AC, synchronizes output with the grid and activates protection functions when abnormal conditions occur. In a large PV plant, it also communicates operating data to the monitoring or SCADA system.
The 350 kW power class lets designers aggregate many strings around one inverter, reducing unit count and simplifying block design. Unlike a residential inverter, a utility-scale unit must handle high voltage, large currents, changing irradiance, dust, heat and grid disturbances.
Why 1500 V Architecture Matters
The enPrimo 350 kW utility-scale inverter supports a maximum PV input voltage of 1500 V and an MPP voltage range of 500 V to 1500 V. In a properly engineered plant, a 1500 V DC architecture can permit longer strings and reduce current for a given power level. This may lower resistive losses, cable quantities and balance-of-system costs, subject to module, temperature and safety calculations.
It has a 550 V startup voltage and 1180 V nominal PV input, giving EPC teams design flexibility.
Multi-MPPT Design for Higher Energy Yield
Irradiance is rarely identical across an entire site. Row orientation, tracker position, module mismatch, soiling and temporary shading can create differences between array sections. Multiple maximum power point trackers isolate these variations so one underperforming section does not unnecessarily limit the rest of the array.
The enPrimo ENP-GU350K-G2 provides six independent MPPT inputs, up to five connectors per MPPT and 30 total inputs. Maximum PV input current is 6 × 75 A, supporting modern 182 mm and 210 mm high-power modules. The platform also supports a DC/AC ratio above 180%, giving designers flexibility to optimize array sizing. Final oversizing should be validated through project-specific yield modelling, clipping analysis, temperature correction and grid requirements.
enPrimo 350 kW Solar Inverter Specifications
| Parameter | enPrimo ENP-GU350K-G2 |
| Maximum PV input voltage | 1500 V |
| MPP voltage range | 500–1500 V |
| Independent MPPTs / DC inputs | 6 / 30 |
| Maximum PV input current | 6 × 75 A |
| Maximum AC output power | 352 kW |
| Nominal AC voltage | 800 V, three-phase |
| Maximum / European efficiency | 99.05% / 98.80% |
| Harmonic distortion | Below 1% at nominal power |
| Protection rating | IP66 |
| Operating temperature | -30°C to 60°C |
| Communication | RS485; optional PLC |
| Local access | LED, Bluetooth and app |
| Weight | Up to 120 kg |
These figures make enPrimo a strong candidate among the best 350 kW solar inverter options in India.
Efficiency, Power Quality and Thermal Performance
The enPrimo inverter offers maximum efficiency of 99.05% and European efficiency of 98.80%. In a large plant, even small reductions in conversion loss can influence lifetime generation and project economics.
Maximum AC output power is 352 kW. Published nominal output is 352 kW at 30°C, 320 kW at 40°C and 310 kW at 50°C, helping engineers account for temperature-related behaviour during design.
Power quality is equally important. Harmonic distortion is below 1% at nominal power, while power factor can be adjusted from 0.8 leading to 0.8 lagging. These capabilities support stable operation and provide flexibility for grid-management requirements.
Safety and Reliability for Demanding Sites
A utility inverter operates around high DC voltage and substantial power, so layered protection is essential. The enPrimo ENP-GU350K-G2 integrates PV string-current monitoring, PV insulation detection, residual-current monitoring, DC reverse-connection protection, anti-islanding protection, AC short-circuit protection and a DC switch.
Type II surge protection is included on both DC and AC sides. DC-terminal temperature protection and MPPT-level insulation detection add fault visibility. AFCI, anti-PID and PID-recovery functions are optional, allowing the system to be configured around project requirements.
The IP66 enclosure is designed for dusty and wet outdoor utility environments. The inverter operates from -30°C to 60°C, supports relative humidity from 0% to 100% and can be deployed at altitudes up to 4000 metres, subject to installation instructions and derating requirements.
Smart O&M and Grid-Friendly Performance
enPrimo includes string monitoring, IV-curve diagnostics, LED indication, Bluetooth and app access, and RS485. Optional PLC can reduce separate communication cabling.
Intelligent fan dust removal supports performance in dusty locations, while smart air cooling manages thermal conditions. Nighttime consumption is below 6 W.
The inverter is designed for full-power operation at a short-circuit ratio of at least 1.1, supporting weak-grid conditions. Reactive power compensation at night can help provide voltage support without active solar generation, depending on plant configuration and utility approval.
Why enPrimo Is One of the Best 350 kW Solar Inverter Choices
The best utility inverter is the one that fits the electrical design, module technology, grid conditions, site climate, O&M strategy and commercial goals. enPrimo stands out because it combines several utility-focused advantages in one platform.
Its 99.05% maximum efficiency and wide MPPT window support strong energy conversion across changing conditions. Six MPPTs, 30 inputs and 75 A per MPPT suit current-generation large-format modules. IP66 protection, a broad temperature range and intelligent dust removal address practical Indian site conditions. Weak-grid operation, nighttime reactive power, low THD and extensive protection support dependable integration. Remote diagnostics and flexible communication can reduce troubleshooting time and simplify fleet management.
enPrimo is positioned specifically around Indian solar requirements. Its published compliance list includes IEC 62109-1/-2, IEC 61727, IEC 62116, IEC 60068, IEC 61683, IEC 61000-6-2/4 and CEA 2019. For buyers searching for a high-efficiency 350 kW on-grid solar inverter in India, this combination makes enPrimo a compelling best-fit solution.
Applications
The enPrimo 350 kW string inverter is suitable for ground-mounted power plants, independent power producer projects, utility solar parks, large industrial captive plants, open-access projects and high-capacity C&I installations. It can support fixed-tilt or tracker projects when the complete electrical design is compatible.
Multiple units can form repeatable blocks for multi-megawatt sites, improving design flexibility and limiting the effect of one unit outage.
How to Select the Right 350 kW Inverter
Begin with the module data sheet and site temperature range. Confirm that string open-circuit voltage remains below the inverter’s maximum input voltage and operating voltage stays within the MPPT range. Check operating and short-circuit current limits for every MPPT.
Evaluate the DC/AC ratio through yield simulation instead of using a generic oversizing rule. Review transformer voltage, switchgear, cable sizing, earthing, surge protection and grid-code requirements. Confirm communication compatibility with SCADA and provide suitable installation clearance, airflow and maintenance access.
Compare more than purchase price. Assess expected energy yield, availability, service response, spares, warranty, monitoring quality and lifetime O&M cost. enPrimo’s project team can support EPCs and developers with model selection and technical coordination.
Frequently Asked Questions
Is a 350 kW inverter suitable for a 350 kW solar plant?
It can be, but sizing depends on DC capacity, temperature, irradiance, grid limits and the target DC/AC ratio. Many projects install more DC module capacity than the inverter’s AC rating to improve utilization while accepting limited peak clipping.
Is the enPrimo inverter compatible with bifacial and large-format modules?
Its 75 A capacity per MPPT and compatibility with 182 mm and 210 mm modules suit many modern high-current module designs. The selected module’s current and voltage values must still be checked.
Can it be installed outdoors?
Yes. The ENP-GU350K-G2 has an IP66 rating and a published -30°C to 60°C operating range. Installation must follow clearance, mounting, environmental and electrical instructions.
Does it support remote monitoring?
It supports RS485, LED indication, Bluetooth and app access, with PLC available as an option. Final integration should be coordinated with the project’s data logger and SCADA platform.
Why choose enPrimo?
enPrimo combines high efficiency, a 1500 V platform, six MPPTs, 30 inputs, modern-module compatibility, weak-grid capability, comprehensive protection and smart O&M features. For EPCs and developers seeking an India-focused 350 kW solar inverter, it offers a balanced solution built around yield, safety, reliability and lifecycle value.
Build a Better Utility-Scale Solar Plant with enPrimo
A 350 kW solar inverter is not merely a DC-to-AC converter; it is a central contributor to plant yield, grid stability, safety and long-term operating cost. The enPrimo ENP-GU350K-G2 brings together 99.05% maximum efficiency, flexible multi-MPPT architecture, IP66 protection, smart monitoring and strong grid-support functions in a compact utility-scale platform.
For a new solar farm, ground-mounted project or large C&I installation, contact enPrimo to discuss sizing, specifications and integration. Choose enPrimo when your project demands a high-performance, reliable and future-ready 350 kW solar inverter for India.
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