SolaX Triple Power X-ESS 3.0kWh Solar Battery

SolaX Triple Power X-ESS 3kWh Solar Battery: The Scalable Storage Solution for Smarter Solar Homes

The SolaX Triple Power X-ESS 3kWh battery offers homeowners a future-ready energy storage option with reliable lithium iron phosphate (LiFePO4) chemistry, seamless compatibility with SolaX hybrid inverters, and a modular design that supports evolving needs. Designed with both safety and performance in mind, this compact unit delivers long-term savings and greater control over self-consumption.

Compact Power That Grows With You

With its 3kWh capacity and stackable form factor, the Triple Power X-ESS enables you to start small and scale up as your energy needs grow. Whether you're planning to expand your solar panel array or gradually increase storage capacity, this modular battery supports flexible system design with up to 4 units in parallel.

• Start with 3kWh and expand to 12kWh total
• Minimal footprint for residential settings
• Floor-mountable for easy indoor/outdoor installation

Engineered for Longevity and Reliability

Built with LiFePO4 cells, this battery provides enhanced thermal stability, over 6000 cycles at 90% depth of discharge, and excellent long-term reliability. According to the datasheet, it maintains high efficiency across its lifespan and includes built-in safety measures that protect your investment in the harshest conditions.

• Over 6000 cycles at 90% DoD
• Auto power replenishment prevents deep discharge damage
• Certified to CE, TUV, UKCA, and UN38.3 standards

Weatherproof & Installer-Friendly

Thanks to its IP65 protection rating, the Triple Power X-ESS is suitable for both indoor utility rooms and exposed outdoor locations. Its systematic, plug-and-play design makes it a favourite among installers, ensuring quick deployment and minimal disruption to your home energy system.

Smart Features with Seamless Integration

The X-ESS 3kWh connects effortlessly with SolaX’s hybrid inverters, ensuring real-time synchronisation and optimal system performance. It supports CAN and RS485 communication interfaces and enables remote diagnostics, upgrades, and maintenance , helping keep your system running efficiently, even in the background.

• Compatible with SolaX Hybrid G4 inverters
• Remote fault diagnosis and firmware upgrades
• Master LED indicators for intuitive status monitoring

Why Evergy Recommends This Product

We recommend the Triple Power X-ESS 3kWh battery for homeowners looking to future-proof their energy setup. It’s ideal for pairing with solar panels and solar inverters from SolaX or other compatible brands, offering excellent value as a modular entry point into solar storage. For those with higher demand, the system can be expanded or upgraded to the 6kWh, 9kWh or 12kWh versions over time.

Perfect for Modern Solar Homes

This battery suits homeowners with modest daily usage, or those exploring solar-plus-storage setups for the first time. It also works seamlessly in properties preparing to adopt smart tariffs, EV chargers or heat pumps , helping you store free solar and shift usage to off-peak hours.

Key Technical Specifications

• Usable Energy: 2.7kWh
• Battery Chemistry: LiFePO4
• Cycle Life: >6000 cycles at 90% DoD
• Protection Rating: IP65 (indoor/outdoor)

Full specification details are available in the datasheet tab.

Pair with Solar or Expand Later

Looking for higher capacity? Consider combining this model with the BMU-3 Master Control Unit and additional X-ESS batteries. You can also explore our larger inverter-compatible models like the Fox ESS R75 or R110 for commercial-grade installations.

Discover More

Explore our full range of solar batteries and check out our helpful blog on the best solar batteries in the UK for 2025. You can also learn how to design your ideal system with our guides on solar panel systems for UK homes and solar panel funding options.

Frequently Asked Questions

Q: Can I install this battery outdoors?
Yes , the Triple Power X-ESS 3kWh has an IP65 rating, making it suitable for both indoor and outdoor installation.

Q: How many of these batteries can I stack together?
You can install up to four units in parallel with a compatible master unit, giving a total capacity of 12kWh.

Q: Is it compatible with non-SolaX inverters?
While designed for SolaX hybrid systems, it may be compatible with other inverter brands that support CAN/RS485 , always consult your installer.

Q: How long will the battery last?
According to the datasheet, the unit is rated for over 6000 cycles at 90% depth of discharge, with an expected lifespan of 10 years.

Next Steps

Ready to take control of your home energy? Speak to Evergy to get started or explore our full range of solar batteries today.