Grid-Tied Systems
Harness The Grid. Own Your Power.
BigBattery ETHOS ESS
- Lowest System Price
- Easiest Installation
- Modular Capacity
- 12-year US warranty
- Reliable Redundancy - Full power from multiple independent modules
- Ultra Thin Low Profile - Save space with sleek design
- Single Person Install - Lighter modules & one person install
The BigBattery ETHOS is our flagship home energy storage solution, designed for safety, scalability, and cost-effectiveness. Each 5.12kWh LFP module stacks into a plug-and-play rack system, allowing homeowners and businesses to tailor storage to their exact energy demands. Built for both grid-tied and off-grid use, ETHOS empowers energy independence with reliable backup power, seamless solar integration, and one of the lowest price-per-kWh rates in the industry.
- Lowest System Price
- Easiest Installation
- Modular Capacity
- 12-year US warranty
- Reliable Redundancy - Full power from multiple independent modules
- Ultra Thin Low Profile - Save space with sleek design
- Single Person Install - Lighter modules & one person install
The BigBattery ETHOS is our flagship home energy storage solution, designed for safety, scalability, and cost-effectiveness. Each 5.12kWh LFP module stacks into a plug-and-play rack system, allowing homeowners and businesses to tailor storage to their exact energy demands. Built for both grid-tied and off-grid use, ETHOS empowers energy independence with reliable backup power, seamless solar integration, and one of the lowest price-per-kWh rates in the industry.
See Configurations
Battery Capacity | 5.12kWh/module
Stack, scale, & save
starting at $252/kWh
Scalable System | 92.1kWh
Expandable for residential
& commercial needs
Warranty | 12-Year
Industry-leading with
USA-based support
Cycle Life | 8,000+ cycles
LiFePO₄ chemistry with
8000+ cycle life
EG4 Wallmount All Weather ESS
- Rugged OutDoor
- Fewer parts
- FLEXIBLE APPLICATION
- 10-year us warranty
- Field-Serviceable Modules – Quick maintenance without disassembly
- Dual Fire Arrestors - Enhanced outdoor safety protection
- 600A Integrated Busbars - Simplified high-current connections
The EG4 All Weather ESS is engineered to perform in any environment, from hot deserts to cold, damp climates. Offering true all-weather resilience, it integrates seamlessly with EG4’s inverter lineup, including the 12kPV, 18kPV, and FlexBOSS series. Built with UL 9540 certification, this ESS ensures code compliance, safety, and reliability for solar installers and homeowners seeking durable, scalable power.
- Rugged OutDoor
- Fewer parts
- FLEXIBLE APPLICATION
- 10-year us warranty
- Field-Serviceable Modules – Quick maintenance without disassembly
- Dual Fire Arrestors - Enhanced outdoor safety protection
- 600A Integrated Busbars - Simplified high-current connections
The EG4 All Weather ESS is engineered to perform in any environment, from hot deserts to cold, damp climates. Offering true all-weather resilience, it integrates seamlessly with EG4’s inverter lineup, including the 12kPV, 18kPV, and FlexBOSS series. Built with UL 9540 certification, this ESS ensures code compliance, safety, and reliability for solar installers and homeowners seeking durable, scalable power.
See Configurations
Battery Capacity | 14.3kWh/module
Modular battery modules for
easy expansion
Scalable System | 85.8kWh
Expandable for residential
& small commercial needs
Warranty | 10-Year
EG4 manufacturer support
within the USA
Cycle Life | 8,000+ cycles
LiFePO₄ chemistry with
8000+ cycle life
EG4 Wallmount 280Ah Indoor ESS
- Lowest cost per kwh
- indoor only
- LCD Touch Display
- 10-year us warranty
- Slim Wall-Mount Profile – Designed for tight indoor installations
- Clean Aesthetic Design – Sleek finish blends with home interiors
- Smart Monitoring – Track performance remotely for satisfaction
The EG4 Indoor ESS provides a clean, compact solution for homeowners looking to maximize energy independence without sacrificing space. Designed for seamless integration with EG4’s hybrid inverter lineup, it offers UL 9540 certification, long cycle life, and smart energy management - all within a slim wall-mounted package. Perfect for residential users who prioritize safety, aesthetics, and reliable performance.
- Lowest cost per kwh
- indoor only
- LCD Touch Display
- 10-year us warranty
- Slim Wall-Mount Profile – Designed for tight indoor installations
- Clean Aesthetic Design – Sleek finish blends with home interiors
- Smart Monitoring – Track performance remotely for satisfaction
The EG4 Indoor ESS provides a clean, compact solution for homeowners looking to maximize energy independence without sacrificing space. Designed for seamless integration with EG4’s hybrid inverter lineup, it offers UL 9540 certification, long cycle life, and smart energy management - all within a slim wall-mounted package. Perfect for residential users who prioritize safety, aesthetics, and reliable performance.
See Configurations
Battery Capacity | 14.3kWh/module
Modular battery modules for
easy expansion
Scalable System | 85.8kWh
Expandable for residential
& small commercial needs
Warranty | 10-Year
EG4 manufacturer support
within the USA
Cycle Life | 6,000+ cycles
LiFePO₄ chemistry with
6000+ cycle life
EG4 Wallmount 314Ah Indoor ESS
- High capacity storage
- auto-id plug & play
- built for Longevity
- latest generation bms
- Quite, Compact & Efficient – Natural cooling for silent performance
- Heavy Load Support – 200A output for demanding loads
- Dual-Mount Flexibility – Supports both wall and floor installation
The EG4 WallMount 314Ah Indoor Battery delivers 16kWh of dependable energy storage with 200A continuous output-making it a powerful core component of any home or small-business ESS. Fully compatible with the EG4 FlexBoss18 and FlexBoss21 inverters, it forms a scalable, high-performance energy storage system that provides reliable backup, efficient daily cycling, and smart power management. Its compact indoor design, advanced BMS, self-heating feature, and long 10-year warranty make it a trusted solution for long-term, whole-home energy independence.
- High capacity storage
- auto-id plug & play
- built for Longevity
- latest generation bms
- Quite, Compact & Efficient – Natural cooling for silent performance
- Heavy Load Support – 200A output for demanding loads
- Dual-Mount Flexibility – Supports both wall and floor installation
The EG4 WallMount 314Ah Indoor Battery delivers 16kWh of dependable energy storage with 200A continuous output-making it a powerful core component of any home or small-business ESS. Fully compatible with the EG4 FlexBoss18 and FlexBoss21 inverters, it forms a scalable, high-performance energy storage system that provides reliable backup, efficient daily cycling, and smart power management. Its compact indoor design, advanced BMS, self-heating feature, and long 10-year warranty make it a trusted solution for long-term, whole-home energy independence.
See Configurations
Battery Capacity | 16kWh/module
Scalable battery modules for
easy expansion
Scalable System | 256kWh
Expandable for residential
& commercial needs
Warranty | 10-Year
EG4 manufacturer support
within the USA
Cycle Life | 10,000+ cycles
LiFePO₄ chemistry with
10,000+ cycle life
Meterhome Indoor ESS
- built in the usa
- flexible interconnect
- smart home ready
- 10-year us warranty
- Local Manufacturing – Built & tested in Oregon for trusted craftsmanship
- Intelligent Monitoring – Real-time tracking and rapid US support
- Automatic Energy Savings – Smart time-of-use optimization
The MeterHome system combines a premium LiFePO₄ battery and a hybrid inverter into a fully integrated home energy storage solution. Designed and manufactured in the U.S., it provides whole-home backup power, solar integration, or utility grid charging - with extensive scalability, high safety standards, and 24/7 remote monitoring. Its modular design allows homeowners to easily expand capacity as energy needs grow, while the intelligent power management system ensures seamless transitions during outages.
- built in the usa
- flexible interconnect
- smart home ready
- 10-year us warranty
- Local Manufacturing – Built & tested in Oregon for trusted craftsmanship
- Intelligent Monitoring – Real-time tracking and rapid US support
- Automatic Energy Savings – Smart time-of-use optimization
The MeterHome system combines a premium LiFePO₄ battery and a hybrid inverter into a fully integrated home energy storage solution. Designed and manufactured in the U.S., it provides whole-home backup power, solar integration, or utility grid charging - with extensive scalability, high safety standards, and 24/7 remote monitoring. Its modular design allows homeowners to easily expand capacity as energy needs grow, while the intelligent power management system ensures seamless transitions during outages.
See Configurations
Battery Capacity | 14.3kWh/enclosure
Scalable battery modules for
easy expansion
Scalable System | 114.4kWh
Expandable for residential
& small commercial needs
Warranty | 10-Year
Meterhome manufacturer support
within the USA
Cycle Life | 6,000+ cycles
LiFePO₄ chemistry with
6000+ cycle life
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