Battery & Inverter Comparison

Tesla Powerwall 3

The Tesla Powerwall 3 represents a significant leap in home energy storage solutions, building upon its predecessors’ strengths with notable enhancements. One of the standout features is its integrated hybrid inverter, allowing for direct (DC) coupling with solar panels. This integration streamlines installation and improves overall system efficiency by reducing energy conversion losses.

Key Features:

• Usable Capacity: 13.5 kWh, ensuring ample energy storage for daily household needs.
• Power Output: Offers up to 11.04 kW of continuous power, accommodating high-demand appliances and peak usage times.
• Scalability: Supports stacking of up to four units, with the option to add up to three DC expansion packs per unit, allowing for future expansion as energy requirements grow.
• Design: Sleek and modern aesthetic, featuring a glass front cover and a more compact form factor compared to previous models, suitable for both indoor and outdoor installations.
• Efficiency: Boasts a round-trip efficiency of 90%, ensuring minimal energy loss during storage and retrieval.
• Warranty: Comprehensive 10-year warranty with unlimited cycles, guaranteeing 80% energy retention after a decade and 100% depth of discharge.

The integration of the solar inverter not only simplifies the system but also enhances its performance, making the Powerwall 3 a top choice for those seeking efficiency and reliability in home energy storage.

Huawei LUNA2000

The Huawei LUNA2000 offers a modular and flexible approach to home energy storage, catering to varying household energy demands. Its design emphasises adaptability and user-friendly integration with existing solar setups.

Key Features:

• Modular Design: Comprises 5 kWh battery modules, allowing configurations ranging from 5 kWh to 30 kWh, enabling customisation based on specific energy needs.
• Inverter Compatibility: Pairs seamlessly with Huawei’s SUN2000 series hybrid inverters, available in capacities from 2 kW to 10 kW, ensuring a tailored fit for diverse household requirements.
• Scalability: Highly adaptable, with the ability to expand storage capacity in 5 kWh increments, accommodating future increases in energy consumption.
• Design: Features a compact, stackable and modern aesthetic, suitable for various installation environments.
• Usability: Integrated with Huawei’s FusionSolar app, providing intuitive monitoring and management of energy production and consumption.
• Backup Capability: Supports both partial and whole-home backup, depending on system configuration, ensuring energy availability during grid outages.
• Warranty: Offers a 10-year warranty, reflecting Huawei’s commitment to product reliability and customer satisfaction.

The LUNA2000’s modularity and compatibility make it an excellent choice for homeowners seeking a customizable and efficient energy storage solution.

Sungrow SBR Battery

Sungrow’s energy storage solution combines functionality with reliability, offering a practical option for homeowners aiming to optimise their solar energy usage.

Key Features:

• Battery Capacity: Utilises 3.2 kWh modules, with configurations starting at 9.6 kWh (three modules) and expandable up to 25.6 kWh, providing flexibility to match energy needs.
• Inverter Power: The SH5K-30 hybrid inverter delivers 5 kW of continuous power, suitable for standard household applications.
• Scalability: Modular design allows for straightforward expansion by adding additional 3.2 kWh modules as energy requirements grow.
• Design: Emphasises functionality with a focus on efficiency and reliability, fitting seamlessly into various home settings.
• Usability: Provides moderate ease of use with monitoring capabilities through the iSolarCloud platform, enabling users to track energy metrics effectively.
• Backup Capability: Offers partial backup with a manual switch; full backup functionality requires additional components, providing flexibility based on budget and needs.
• Warranty: Comes with a 10-year warranty, ensuring long-term reliability and performance.
• Depth of Discharge: Allows for 100% usable capacity, maximising the utility of stored energy.

Sungrow’s system offers a balance between cost-effectiveness and performance, making it a viable option for those seeking dependable energy storage.

Sigenergy

Sigenergy presents a modern and highly optimisable energy storage solution, designed to meet the evolving needs of contemporary households.

Key Features:

• Battery Capacity: Offers 5 kWh and 8 kWh battery packs, stackable up to six units, allowing configurations up to 48 kWh, catering to both small and large energy demands.
• Inverter Power: Single-phase models are available in 5 kW, 6 kW, 8 kW, and 10 kW AC ratings, providing flexibility to match household energy consumption patterns.
• Scalability: Highly modular, with the ability to expand storage capacity by adding more battery packs, ensuring the system can grow with your energy needs.
• Design: Features a modern and simple aesthetic with a focus on seamless integration into various home environments.
• Usability: Offers a user-friendly interface with comprehensive monitoring.