BigBattery ETHOS Battery & 18kPV Hybrid Inverter (ESS) | 10.24–46.1kWh | UL9540 | Grid-Tied Home Solar System (18kW PV)

Upgrade your energy setup with a high-performance storage solution designed for both residential and commercial applications. The ETHOS Energy Storage System combines advanced lithium battery technology with a powerful hybrid inverter to deliver reliable, efficient, and intelligent energy management.

System Overview

  • All-in-One Solution: Combines the EG4 18kPV-12LV hybrid inverter with stackable BigBattery ETHOS LiFePO4 modules.

  • High Capacity: Modular storage ranging from 10.24kWh to 46.08kWh per controller box.

  • Advanced Safety: Features LFP chemistry, integrated fire suppression, and full UL 9540/UL 1741 SB certifications.

  • Outdoor Rated: NEMA 4X / IP65 enclosure protects against rain, dust, and corrosion.

Key Features

  • 12kW Continuous Output: Robust split-phase AC power (120/240V) capable of running whole-home loads like HVAC and pumps.

  • 18kW Solar Input: Three independent MPPT channels (up to 600VDC) for optimized solar harvest.

  • EMP Hardened: Engineered to withstand electromagnetic pulse events and solar storms.

  • AC Coupling: Supports up to 21.6kW of additional solar from existing grid-tie inverters.

  • Smart Management: Real-time Wi-Fi monitoring, remote firmware updates, and closed-loop BMS communication.

Technical Specifications

  • Inverter Performance: 12,000W continuous AC output with 15,500W surge capacity (5 min).

  • Battery Chemistry: Lithium Iron Phosphate (LiFePO4).

  • Cycle Life: 6,000+ cycles for long-term reliability.

  • Voltage: 48V nominal system voltage.

  • Temperature Range: Discharge from -4°F to 140°F (-20°C to 60°C).

Applications

  • Whole-Home Backup: Reliable power during grid outages and blackouts.

  • Off-Grid Living: Modular expansion up to 120kW (parallel units) for remote installations.

  • Time-of-Use (TOU): Intelligent energy management to reduce peak electricity costs.

  • Commercial Use: Suitable for light commercial systems requiring 120/208V three-phase output.






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    Total price$16,067.97