LFP Rack-Mounted Energy Storage Battery
The LFP rack-mounted solar battery from Xiensolar, model XE-HF155, provides a robust, bankable solution in an era of rising utility rates and grid instability. For solar installers and EPCs, this UL 9540 certified system is more than a component; it’s a gateway to higher-margin projects and a stronger value proposition for your clients. As a premier LFP solar battery supplier, we provide the technology to capitalize on the growing demand for residential resilience and commercial energy management.
Description
Xiensolar XE-HF155 LFP Rack-Mounted Solar Battery
Technical Specifications
Engineered for Maximum Yield and Long-Term Reliability | For Certified Solar Professionals
Field-Proven Performance (Experience): Case Study Spotlight
Project: 2.5 MWh Microgrid for Commercial Winery, Napa Valley, CA
Challenge: The client faced extreme grid instability due to Public Safety Power Shutoffs (PSPS) during wildfire season and incurred crippling demand charges from energy-intensive cooling and crushing operations. They required a resilient, bankable energy storage solution to ensure operational continuity and control costs.
Solution & Results: A distributed network of 162 Xiensolar XE-HF155 battery modules was installed alongside their existing solar array. Over its first full year of operation, the system delivered 100% uptime during three separate grid outage events, saving an estimated $250,000 in lost revenue. The system’s intelligent peak shaving algorithm also successfully reduced peak demand charges by 75%, accelerating the project ROI by 24 months.

Technical Deep Dive (Expertise): Engineering a Lower LCOS
The heart of the XE-HF155’s performance and longevity is our proprietary Dynamic State-of-Health (SoH) Battery Management System (BMS). Unlike standard BMS that use static, linear degradation models, our system leverages over a decade of cell-level field data. Its predictive algorithm actively monitors impedance and temperature at the cell level to dynamically adjust charge/discharge curves.
This proactive cell balancing prevents premature degradation and maximizes the total energy throughput over the battery’s lifetime. The direct financial benefit for your clients is a lower Levelized Cost of Storage (LCOS) and an extended revenue-generating lifespan, estimated to be 15% longer than competitor systems. This is not just a battery; it’s a long-term energy asset engineered for maximum financial return.
Bankability & Compliance (Authoritativeness): Fully Certified for North American Projects
pecify the XE-HF155 with confidence. Our commitment to safety, performance, and compliance is validated by the industry’s most stringent third-party testing bodies.
System Safety: UL 9540 – Standard for Energy Storage Systems and Equipment
Cell & Module Safety: UL 1973 – Standard for Batteries for Use in Stationary Applications
Grid Interconnection: UL 1741-SA / IEEE 1547-2018 – Standard for Inverters, Converters, and Controllers for Use With Distributed Energy Resources
International Standards: IEC 62619, CE
Transportation Safety: UN 38.3
Performance Recognition: 2025 Top Performer, PV Evolution Labs (PVEL) BESS Scorecard
Our Commitment to Partners (Trustworthiness): Warranty, Support & Sustainability

Our pledge extends beyond product performance. We view our installers as long-term partners. The XE-HF155 is backed by a 15-year, non-prorated product and performance warranty, guaranteeing at least 70% capacity retention. Crucially, this warranty is underwritten by a leading A-rated global insurance carrier, providing you and your clients ultimate peace of mind and project bankability.
Furthermore, as a testament to our long-term commitment, we offer the industry’s first guaranteed end-of-life buy-back and recycling program. We handle the logistics through certified partners, ensuring a responsible, circular lifecycle for every battery and bolstering your clients’ ESG credentials. This is our promise of a sustainable and trustworthy partnership.
Core Partner Advantages
Maximize Client ROI: Engineer projects with a superior Levelized Cost of Storage (LCOS). The XE-HF155’s 98.5% RTE and 10,000-cycle life ensure your clients see a faster return, making your proposals more competitive.
Reduce Project Risk: As a UL 9540 certified BESS, the XE-HF155 meets the strictest safety standards, satisfying AHJs and financiers. Our insured 15-year warranty makes for truly bankable energy storage components.
Lower Your BoS Costs: The modular, lightweight design and auto-discovery communication protocol simplify system design and dramatically cut on-site installation and commissioning time, directly improving your project margins.
Win on Sustainability: Differentiate your business with our recyclable solar battery and guaranteed take-back program. Offer clients a truly green solution that aligns with corporate ESG goals.
Grow with a True Partner: Our solar installer partner program is designed for your success. Gain access to dedicated US-based engineering support, co-op marketing funds, and powerful design tools to streamline your sales and operations.
Target Applications
The XE-HF155 is engineered for flexibility across a range of high-value applications:
Residential Self-Consumption & TOU Arbitrage: Empower homeowners to maximize the value of their solar energy and avoid peak utility rates.
Commercial Demand Charge Management: Shave expensive demand peaks for commercial & industrial (C&I) clients, delivering immediate and significant operational savings.
Grid-Tied with Backup / Microgrids: Provide mission-critical resilience for businesses, wineries, data centers, and luxury homes, ensuring continuity during grid outages.
Off-Grid Systems: Build robust, reliable power systems for remote locations with a foundation of safe, long-lasting LFP technology.
FAQ
Is this battery compatible with leading solar inverter and rapid shutdown device (RSD) brands?
Yes. The XE-HF155 is designed for open compatibility. It features a closed-loop communication protocol via CAN bus with leading hybrid inverter brands including Sol-Ark, SMA, Schneider Electric, and Victron. It is also fully compatible in AC-coupled configurations with any string or microinverter system, including those from Enphase and SolarEdge (when paired with a compatible multi-mode inverter).
What are the warranty claim and RMA procedures for certified installers?
Our process is streamlined through the Xiensolar Partner Portal. Certified installers can initiate a claim online, which is immediately assigned to a dedicated Tier 2 support engineer. We provide remote diagnostics to verify the issue, and if a replacement is needed, we ship a new unit from one of our US-based distribution centers within 48 hours. We also provide a labor reimbursement credit as per our Partner Agreement.
Do you provide design and simulation files (e.g., .PAN, .OND) for PVSyst, Aurora Solar, or Helioscope?
Absolutely. Our Partner Portal contains a full library of design files, including .PAN files for PVSyst and detailed component models for Aurora Solar and Helioscope. This allows for accurate system modeling to forecast performance and financial returns for your clients.
What are the specifics of the end-of-life recycling program? Who covers the logistics and costs?
Upon decommissioning at the end of its warrantied life, Xiensolar coordinates the entire process. We arrange for a certified logistics partner to pick up the batteries from the project site at no cost to you or the system owner. The modules are then transported to our certified recycling partner, where over 95% of the raw materials are recovered and returned to the supply chain. This is a core part of our commitment to a circular economy.
What level of integration support is available for third-party monitoring platforms via API?
We offer robust API support. The XE-HF155 system gateway provides a well-documented RESTful API that allows for secure, real-time data integration with third-party DERMS and monitoring platforms. Our application engineering team is available to assist your software team with the integration process.