Hoymiles Battery Energy
Storage System (BESS)

Category: Utility-Scale Battery Energy Storage

Overview: High-capacity battery container for utility-scale energy storage, combining high energy density, liquid cooling, intelligent O&M and multi-layer protection.

Highlights: 10.03 MWh rated energy; liquid cooling; 8000 cycles; parallel expansion; stable operation at high altitude; no derating at 50°C ambient within specified conditions; integrated peak shaving, demand control and grid dispatch functions.

Key Specifications: LFP; 12P416S × 2; 1331.2 V rated DC; 5 MW rated power; 0.5C; 10–35 kV grid access through integrated PCS-MV station; 99% maximum conversion efficiency; IP54 battery container and IP65 PCS.

Category: Utility-Scale Battery Storage

Overview: 5MWh containerized battery system using LFP cells and intelligent liquid cooling for scalable utility-scale energy storage applications.

Highlights: High energy density; reduced footprint; liquid cooling; multi-unit parallel connection; multi-layer insulation and short-circuit protection; integrated water/fire suppression and early thermal-runaway detection.

Key Specifications: 5.016 MWh rated energy; 2.5 MW rated power; 1331.2 V DC; 8000 cycles; IP54; C4/C5 optional; 86% charging/discharging efficiency; operating temperature -30°C to 55°C with derating above 50°C.

Category: Utility-Scale Battery Storage

Overview: 6.25MWh containerized battery system with liquid cooling, scalable architecture and integrated safety features for utility-scale energy storage.

Highlights: High energy density; reduced footprint; multi-unit parallel connection; liquid cooling; early thermal-runaway detection; unified interfaces; automatic fluid replenishment; big-data analytics for proactive O&M.

Key Specifications: 6.25 MWh rated energy; 1.56 MW rated power; 1331.2 V DC; 8000 cycles; IP55; C4/C5 optional; 94% charging/discharging efficiency; operating temperature -25°C to 55°C with derating above 50°C.

Category: Power Conversion System (PCS)

Overview: High-power bidirectional PCS based on ANPC topology, designed for energy storage applications with high efficiency, intelligent liquid cooling and grid-support functions.

Highlights: Peak efficiency >99%; VSG and black-start capability; millisecond-level charge/discharge switching; intelligent liquid cooling; IP66; C4 anti-corrosion; operation in harsh and high-altitude environments.

Key Specifications: 460 kVA rated output; 506 kVA maximum continuous output; 1000–1500 V DC; 586.5–759 V AC; <2% AC current harmonic at rated power; power factor >0.99; ≤10 ms charge/discharge switching; -40°C to 60°C operating temperature.

Category: Power Conversion System (PCS)

Overview: High-density liquid-cooled PCS series for utility energy storage, supporting on-grid, off-grid and hybrid operation with four-quadrant control and grid-support functions.

Highlights: Peak efficiency >99%; floor space <1 m²; DC operation up to 1500 V; primary frequency regulation; rapid voltage adjustment; VSG control; L/HVRT support; <20 ms charge/discharge switching; IP65 and C5 anti-corrosion.

Key Specifications: Rated output range 1250–1725 kVA (models HPCS1250N-E, HPCS1375-E, HPCS1575-E, HPCS1725-E); maximum continuous output up to 1897 kVA depending on model; rated AC voltage 550/630/690 V by model; DC range 800–1500 V depending on model; altitude up to 5000 m with specified derating conditions.

Category: High-Power PCS

Overview: High-power ANPC-based PCS series for large-scale energy storage, with grid-forming and inertia-support capabilities and liquid cooling for demanding environments.

Highlights: Peak efficiency 99%; floor space <1.5 m² for HPCS2500-E; full power at DC 1500 V; grid-forming and inertia support; VSG control; L/HVRT; four-quadrant operation; <20 ms switching; IP65 and C4 with C5 optional.

Key Specifications: 2500 kVA and 3500 kVA models; 1000–1500 V DC; 690 V AC; maximum continuous output 2750/3850 kVA; operating temperature -40°C to 60°C; altitude up to 5000 m with specified derating conditions.

Category: Medium-Voltage PCS Station

Overview: Integrated PCS-MV station combining PCS, transformer, BCP, BSP, FFS and SS systems in a skid-mounted design for utility-scale battery storage.

Highlights: Integrated design; >99% PCS peak efficiency; 20% floor-space saving; intelligent liquid cooling; primary frequency regulation; L/HVRT support; grid black-start function; on-grid, off-grid and hybrid modes; GOOSE support.

Key Specifications: 5000 kVA rated output; 5500 kVA maximum continuous output; 690 V PCS AC; 37 kV/0.69 kV transformer; 1000–1500 V DC; IP54 station / IP65 PCS; operating temperature -35°C to 60°C; altitude up to 5000 m with specified derating.

Category: C&I Energy Storage System

Overview: Next-generation fully liquid-cooled C&I battery energy storage system integrating battery, PCS, edge EMS and local APP-based operation and maintenance.

Highlights: 125 kW / 261 kWh; maximum round-trip efficiency 90.3%; three-level and six-type safety protection; fully liquid-cooled battery and PCS; operation without derating at 50°C within specified conditions; IP55 core components; cloud and APP management.

Key Specifications: 261 kWh nominal battery energy; 125 kW rated output; 137.5 kW maximum output; LFP 3.2 V/314 Ah; 728–936 VDC battery range; 88.4% rated round-trip efficiency; IP55; -30°C to +55°C operating temperature.

Category: Utility-Scale PV String Inverter

Overview: 1500V high-power PV string inverter series designed for complex and demanding utility solar applications, with advanced MPPT, PLC communication and grid-support capabilities.

Highlights: 6 × 75A MPPT; compatible with 182 mm and 210 mm modules; max efficiency 99.05%; EU efficiency 98.8%; IP66; I-V curve diagnostics; string monitoring; intelligent breaking; weak-grid operation; AFCI optional.

Key Specifications: Rated output 300–350 kW by model (HINV350HX-G2, HINV330HX-G2, HINV320HX-G2, HINV300HX-G2); 1500 V maximum PV input; 500–1500 V MPPT range; 30 PV inputs; 800 V AC output; 50/60 Hz; operating temperature -30°C to +60°C; altitude up to 4000 m.

Category: PV Plant Control & Monitoring

Overview: PV array control unit for utility-scale and distributed PV plants, integrating data acquisition, fiber communication and protection functions for sub-array monitoring and control.

Highlights: Integrated datalogger and fiber switch; multiple communication methods; outdoor-ready enclosure; integrated SPD; IP65 protection; supports wall, bracket and pole mounting.

Key Specifications: 6 RS485 interfaces; 5 × 10/100 Mbps Ethernet ports; HPLC; fiber switch with 2 optical and 6 electrical ports; optional encryption and PID protection modules; 200–240 VAC supply; IP65; up to 5000 m altitude.

Category: PV Plant Data Acquisition & Communication

Overview: Utility PV datalogger for equipment data access, energy management and data transmission, supporting meters, inverters, meteo stations and MV stations.

Highlights: Supports up to 200 devices; multiple RS485 and Ethernet interfaces; protocol conversion; subarray energy management; edge computing; embedded WEB interface; compact design.

Key Specifications: Up to 200 devices; 6 RS485 interfaces; 5 Ethernet ports; HPLC; 8 DI; 4 DO; 4 AI; PT100/1000 support; Modbus-RTU, DL/T645, IEC 104, IEC 61850 and Modbus-TCP; 100–277 VAC or 24 VDC supply; IP20.

BESS installation cost depends on battery capacity in kWh, battery chemistry, inverter type and whether it is paired with an existing solar system. MSEB Power offers a free site assessment and customised quote for homes, commercial and industrial customers. Contact us on +919209329431.

Yes. Most on-grid solar systems can be upgraded to a solar plus battery hybrid system. MSEB Power assesses your existing inverter and panel setup to recommend a compatible BESS solution.

Modern lithium-ion batteries used in BESS installations typically last 8 to 15 years or several thousand charge cycles, depending on usage and battery chemistry. MSEB Power provides manufacturer warranty support along with AMC options for long-term performance.

Backup duration depends on the battery capacity chosen and your connected load. MSEB Power sizes the BESS to your specific home or business needs, from powering a few essential appliances to backing up an entire building.

On-grid BESS works alongside grid power and solar for peak shaving and backup. Off-grid BESS operates independently of the grid, ideal for remote sites. Hybrid BESS combines solar, battery and grid power for maximum flexibility and savings.

Yes. A BESS charges during low-tariff or solar generation hours and discharges during peak demand periods, reducing peak demand charges for commercial and industrial customers and lowering overall electricity costs for homes.

Residential solar systems can avail subsidy under schemes such as PM Surya Ghar Muft Bijli Yojana. Battery storage subsidy availability varies by scheme and state policy. MSEB Power tracks applicable incentives and assists with documentation.

BESS sizing depends on your daily energy consumption, backup requirements and whether it is paired with solar. MSEB Power conducts a free energy audit and site survey to recommend the right battery capacity for your needs.

No. MSEB Power is an independent energy consultancy and project management company. We do not manufacture batteries or solar panels. We help clients evaluate technologies, compare vendors such as Hoymiles, coordinate with reputed EPC partners and deliver the most suitable solar, BESS and EV charging solution for their project.

Hoymiles Power Electronics Inc. is a Tier 1 Global Energy Storage Manufacturer recognised by BloombergNEF, founded in 2012 and deployed in over 190 countries. For utility-scale projects, Hoymiles offers AC and DC containerized battery storage, power conversion systems (PCS), PCS-MV stations, C&I energy storage systems and utility-scale string inverters with PV array control units and dataloggers.

Yes. MSEB Power works with Hoymiles as a technology partner to bring containerized battery storage, PCS, PCS-MV stations and utility-scale string inverters to solar parks, DISCOM projects, industrial plants and other large-scale customers across Maharashtra, handling feasibility, vendor coordination and project management.

Yes. MSEB Power welcomes entrepreneurs, engineers and energy professionals to partner with us and build a solar, BESS and EV charging consultancy business in their own city, with access to our brand, technical training, vendor network and project support. Contact us to learn more about partnership opportunities.