ZT-REES-LV-FS-16k-G1 | ZT-REES-LV-FS-16k-G2 Residential Energy Storage System Low-Voltage | Floor-Standing | 16kWh The ZTTEK Hearth LV-16k-FS is a 16 kWh floor-standing LFP energy storage system designed for retrofit solar installations requiring a compact, self-contained unit. Combining 314 Ah high-density cells, 120 A continuous output, and a space-efficient floor-standing form factor, this ESS is suited for garages, courtyards, equipment rooms, and outdoor sites where a stackable format is impractical. The system expands via DC combiner to support up to 16 parallel units.

Retrofit Integration with Microinverters & PV Inverters

Designed for seamless connection to existing solar systems without inverter replacement.
- RS485 / CAN communication interfaces
- Compatible with mainstream microinverters and PV inverters via software matching
- Simplified single-cable power connection reduces installation time
- No high-voltage components — safe for residential and semi-commercial environments

16 kWh Single-Unit, High-Density LFP

Full 16 kWh capacity in a single floor-standing enclosure — no stacking or assembly on site.
- Cell capacity: 314 Ah; nominal voltage: 51.2 V; rated energy: 16 kWh
- Cycle life: ≥6,000 cycles @ 80% DoD
- Natural convection cooling — maintenance-free thermal management
- Dimensions: 550 × 860 × 175 mm; weight: 140 kg

High Power Output for Demanding Loads

Continuous and peak discharge capability to support heavy residential and commercial loads.
- Continuous charge/discharge: 120 A
- Peak discharge: 205 A — handles motor startup surges and large appliances
- Charge temperature: 0°C to 55°C; discharge: -20°C to 55°C

1Compact Floor-Standing Installation

Purpose-built form factor for installations where vertical stacking is not feasible. - Floor-standing design fits garages, courtyards, narrow equipment rooms, and outdoor plant areas - Simplified wiring: power and communication via quick-plug connectors - IP65 outdoor-ready enclosure - Minimal footprint relative to energy capacity

Wide Environmental Adaptability

Suitable for both indoor and outdoor deployment across a broad range of climatic conditions. - Natural convection cooling — no active cooling components to maintain - Operating temperature: charge 0°C to 55°C; discharge -20°C to 55°C - Relative humidity: 5–95% (non-condensing) - Altitude: <3000 m; IP65 enclosure

Open Smart Energy Management

Compatible with intelligent scheduling, third-party EMS, and grid flexibility programs. - RS485 / CAN communication interfaces - Works with ZTTEK smart gateway for load management and energy scheduling - Supports third-party EMS integration - Suitable for VPP participation, demand-side flexibility, and smart building projects

Applications

Solar Retrofit

Integrate battery storage into existing microinverter or PV inverter systems without system redesign.

Time-of-Use Optimization

Store off-peak energy and discharge during high-tariff periods to lower electricity costs.

Home Backup Power

Protect essential household loads during grid interruptions with automatic backup switching.

VPP & Grid Flexibility

Participate in aggregated virtual power plant and demand-side response programs.

Datasheet

Low-Voltage Residential ESS (16kWh, Floor-Standing)