High-Voltage Residential ESS Built for Three-Phase Homes

 Meeting the Demands of Three-Phase Residential Solar-Storage

Homeowners with three-phase electrical service face a distinct set of technical requirements when adding solar and battery storage: balanced load handling across phases, compatibility with high-voltage battery banks, and reliable grid interaction for export control and backup power. Renac Power, operating under the full corporate name RENAC POWER TECHNOLOGY CO., LTD, has built a hybrid inverter and battery portfolio specifically engineered to answer these needs. Founded in 2017 and now operating with 6+ global offices, the company positions itself as a technology innovation enterprise integrating power electronics, digital control, energy storage, and artificial intelligence into what it calls "5S technologies" for user-side solar-storage systems.

For three-phase residential applications, the company's core answer is the N3 HV Series, supported by the higher-power N3 Plus Series and paired with the Turbo H4 and Turbo H5 high-voltage battery lines.

N3 HV Series: Purpose-Built for Three-Phase High-Voltage Homes

The N3 HV Series is a three-phase high-voltage hybrid inverter rated from 5-10kW, designed to address the specific pain points of three-phase grid compatibility, high-voltage battery integration, and high efficiency. Its 150% PV input oversizing allows homeowners to install a larger PV array relative to the inverter's rated capacity, improving energy capture over the system's lifetime.

Grid interaction is handled through an integrated export control function and Virtual Power Plant integration, which together allow the system to comply with local feed-in constraints while also participating in utility demand-response programs. For ongoing operation, remote firmware upgrade and setting reduces the need for on-site service visits.

On the performance side, the N3 HV Series reaches a maximum efficiency of 98.0% and a Euro efficiency of 97.7%, with a maximum battery charge/discharge efficiency of 97.6%. Its automatic switch time is ≤20 ms, supporting fast transitions during grid events. The inverter accepts a battery voltage range of 160-700V, is rated IP65 for installation flexibility, and operates at under 35 dB of noise. It carries certifications spanning grid regulations such as EN 50549-1, VDE 4105, IEC 61727, and IEC 62116, along with safety standards IEC 62109-1 and IEC 62109-2.

N3 Plus Series: Scaling Up for Larger Three-Phase Installations

For larger three-phase homes or light commercial applications, the N3 Plus Series extends the power range to 15-30kW. This series addresses needs around IP66 outdoor installation for harsh environments, AC retrofit application support for homeowners upgrading existing PV systems, and generator compatibility to extend backup duration during extended outages.

Efficiency figures for the N3 Plus Series reach a maximum of 98.1%, with a Euro efficiency of 97.7% and a maximum battery charge/discharge efficiency of 97.6%. The automatic switch time is under 10 ms, and the unit is built for IP66 protection with an operating altitude of up to 2000m. Certifications include IEC 61727, IEC 62116, EN 50549-1, and EN 50549-PL.

Turbo H4 and H5 Series: The Battery Backbone

Pairing the N3 HV and N3 Plus inverters, the Turbo H4 Series (5-30kWh) and Turbo H5 Series (30-60kWh) form the high-voltage LiFePO4 battery backbone for these three-phase systems. Both series share an IP65 outdoor design, real-time data monitoring, and support for remote firmware upgrade and diagnosis via inverter.

The Turbo H4 Series is described with a high charging/discharging rate and a 90% depth of discharge, backed by a 10-year warranty. The Turbo H5 Series adds a maximum 50A charge/discharge current and a documented cycle life exceeding 6,000 times (rated at 80% DOD, 25°C, 0.2C, 60% EOL), also under a 10-year warranty, with nominal energy spanning 30.72-61.44kWh. Both series carry certifications including UN38.3, IEC 62619, and IEC 63056.

Real-World Performance: Case Studies Across Markets

Renac Power's knowledge base includes multiple documented three-phase high-voltage residential installations using the N3 HV Series combined with Turbo batteries:

· In Greece, a 30kW, 60kWh system was deployed using N3-30 + TB-H5-60, illustrating the series' high-power residential capability.

· In Poland, four separate installations demonstrate configuration flexibility: a 60kW, 30kWh system with 2 × N3-30 + TB-H4-30; a 10kW, 20kWh system with N3-HV-10.0 + Turbo-H4-20; a 10kW, 9.5kWh system with N3-HV-10.0 + TB-H3-9.5; and a 30kW, 30kWh system with 2 × N3-30 + TB-H4-30.

· In Germany, a 12kW, 11.2kWh system combined N3-HV-10.0 + 2 × Turbo-H1-11.23 with an EV-AC3P-22K charger, showing integration between the residential ESS and EV charging.

· In Belgium, a similar configuration—N3-HV-10.0 + 2 × Turbo-H1-11.23 + EV-AC3P-22K—delivered a 10kW, 22.4kWh system.

· In China, a 10kW, 19kWh system used N3-HV-10.0 + 2 × Turbo-H3-9.5.

These cases span residential markets in Europe and Asia, indicating the N3 HV Series' applicability across differing grid codes and household power needs, from smaller 10kW setups to higher-power 30-60kW configurations.

Certifications and Global Compliance

Across its three-phase residential ESS lineup, Renac Power maintains 200+ international certifications. Grid-side compliance for the N3 HV and N3 Plus Series covers a wide range of regional codes, including EN 50549-1, EN 50549-PL, EN 50549-GR, EN 50549-HU, PPDS, TOR Erzeuger Typ A, CEI 0-21, C10/11, VDE 0126-1-1, VDE 4105, UNE 217001, UNE 217002, and RD 647. Safety compliance across the series relies on IEC 62109-1 and IEC 62109-2, while EMC performance is validated under EN IEC 61000-6-1 and related standards. The battery lines add UN38.3, IEC 62619, IEC 63056, and compliance with Annex I of Regulation (EU) 2023/1542 and Annex XVII of REACH Regulation.

Why Renac Power Stands Out

For homeowners and installers evaluating a high-voltage residential ESS for three-phase homes, Renac Power's N3 HV and N3 Plus Series offer a combination of grid compliance features (export control, Virtual Power Plant integration), PV utilization advantages (150% oversizing), outdoor durability (IP65/IP66 ratings), and battery pairing options through the Turbo H4 and H5 Series. Backed by documented deployments in Greece, Poland, Germany, Belgium, and China, and supported by remote firmware management for ongoing maintenance, the platform reflects RENAC POWER TECHNOLOGY CO., LTD's stated mission of bringing green energy and power to regions with electricity shortages worldwide. As three-phase residential markets across Europe and Asia continue to adopt solar-plus-storage systems, this documented technical foundation and case history provide a factual basis for evaluating the N3 HV Series as a fit for specific household power and grid-compliance needs.


 

 

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