Battery Energy Storage Systems. Ten product lines. Your choice of chemistry.
From wall-mounted residential storage to megawatt-class utility containers. Each XEYAR BESS product is available in supercapacitor or sodium-ion — one chemistry per project, one UL 9540 certified architecture. Deployed across USA, Canada, GCC, and MENA, with India expansion underway.
Pick per project. We deliver either.
Every XEYAR BESS product is available in both supercapacitor and sodium-ion. You choose the right chemistry for each project based on cycle-count, duration, and environmental requirements. Both eliminate thermal runaway risk. Both run on the same UL 9540 certified DC architecture.
High-cycle, high-power, short-duration.
Best for data-center UPS, EV charge buffering, frequency regulation, telecom backup. Sub-millisecond response and negligible degradation make it the right choice where uptime and cycle life matter more than energy density.
Longer-duration energy storage, wider temp range.
Best for residential, commercial peak shaving, 2–4 hour grid storage, and cold-climate deployments. Higher energy density with no lithium, no cobalt, no rare-earth dependencies — ships non-hazardous under EU 2013/56/EU.
Ten BESS Product Lines. One for every scale.
Jump to any product, or filter by application. Each product detail section below covers specs, chemistry options, ideal deployments, and direct quote/demo/spec-sheet CTAs.
PHOENIX
Wall-mountable home battery storage. Solar integration, 100% depth of discharge, indoor-safe (zero thermal runaway). 20-year warranty.
DRAGONFLY
Modular commercial BESS for solar/wind co-location and demand-charge management. Up to 12C discharge for industrial peak load shedding.
DRACO
Standard 19" rack-mount UPS for data centers and critical power. 5C discharge, sub-millisecond response. 500,000+ cycles. Replaces legacy lead-acid VRLA.
LEVIATHAN
Utility-scale BESS in 20ft container format. 2,362 kWh per Na-ion container. Frequency regulation, energy arbitrage, renewable integration.
NOMAD
Mobile BESS for events, disaster relief, construction, military, and remote off-grid sites. Optional integrated DC fast charging output.
CORVUS
Compact UPS purpose-built for cell tower backup. 4G/5G/6G base stations, edge data centers. SuperCap delivers 30+ year design life vs lead-acid 5-year cycles.
CETUS
Power buffer purpose-built for AI and GPU compute transients. Smooths hyperscale AI workload spikes that destroy conventional Li-ion UPS cycle life.
WOLVERINE
Containerized microgrid BESS for island-capable operation, off-grid facilities, remote communities, and critical infrastructure resilience.
HELIOS
All-in-one system combining photovoltaic generation, battery storage, and EV charging on one UL 9540 certified DC bus. Ideal for dealerships, fleet depots, and C&I sites.
TITAN
Megawatt-class multi-container BESS for utility substations, large industrial loads, and grid-support deployments. Scales to tens of MWh per site.
Wall-mounted home storage.
Zero thermal runaway. 20-year warranty.
PHOENIX is XEYAR's residential battery energy storage system — wall-mountable, solar-ready, and indoor-safe. Choose supercapacitor for 50,000+ cycles and a 45-year design life, or sodium-ion for higher energy density. Both eliminate thermal runaway risk; neither requires active thermal management.
LCOS of 7.2¢/kWh — roughly 67% lower than a typical lithium 10-year replacement scenario under the same usage assumptions.
| Capacity (SuperCap) | 13–15 kWh per unit |
|---|---|
| Capacity (Na-ion) | 10–15 kWh per unit |
| Depth of Discharge | 100% |
| Round-Trip Efficiency | 97% |
| Operating Temperature | −40°C to +65°C |
| LCOS (20-year) | ~7.2¢/kWh |
| Warranty | 20 years |
| Certifications | UL 9540, UL 1973, UL 810A, IEC 62619 |
Ideal For
- Whole-home solar self-consumption
- Grid-outage backup (indoor-safe)
- Time-of-use arbitrage
- Net-metering optimization
- Cold-climate homes (−40°C operation)
- Multi-unit residential retrofit
Modular commercial storage.
Up to 12C discharge. Siemens-pilot proven.
DRAGONFLY is XEYAR's commercial and industrial BESS platform — modular, expandable, and built for solar/wind co-location and demand-charge management. The SuperCap variant delivers 12C discharge for industrial peak load shedding; the Na-ion variant offers multi-hour duration for arbitrage and backup. Both support 200% daily cycling without degradation penalty.
Field-Proven Sub-100ms PV ramp smoothing, fail-tolerant module architecture, 100% DoD at dispatch.
| Discharge Rate (SuperCap) | Up to 12C |
|---|---|
| Discharge Rate (Na-ion) | 2C / 3C / 5C |
| Daily Cycling | 200% (multiple cycles per day) |
| Round-Trip Efficiency | 97% |
| Grid Functions | Peak shaving, FFR, PV ramp smoothing, UPS ride-through |
| Enclosure | Indoor rack / outdoor cabinet |
| Certifications | UL 9540, UL 1741 (in review), IEEE 1547 |
Ideal For
- Demand-charge reduction (peak shaving)
- Solar/wind co-location firming
- Industrial peak load shedding
- C&I UPS ride-through
- Frequency regulation (FFR)
- Dealership & fleet depot storage
19″ rack UPS for critical power.
500,000+ cycles. 45-year design life.
DRACO replaces legacy lead-acid VRLA in a standard 19″ rack form factor. The SuperCap variant delivers sub-millisecond response with 500,000+ cycles and a 45-year design life. The Na-ion variant (marketed as RockNa) extends runtime for longer-duration critical loads. Both are fail-tolerant — individual module failure does not interrupt operation — and both require no active cooling.
Purpose-built for AI & GPU data centers. Conventional Li-ion UPS cycle life collapses under modern compute transients. DRACO's electrostatic SuperCap architecture is native to this load profile.
| Response Time | <1 ms |
|---|---|
| Discharge Rate | 5C continuous |
| Cycle Life (SuperCap) | 500,000+ |
| Design Life (SuperCap) | 45 years |
| Form Factor | Standard 19″ rack, field-replaceable modules |
| Fail-Tolerance | Module failure does not interrupt operation |
| Warranty | 20 years |
| Certifications | UL 9540, UL 1973, IEC 62619, UN38.3 |
Ideal For
- Hyperscale & colocation data centers
- GPU / AI compute clusters
- Telecom central office backup
- Hospital & lab critical power
- Financial & trading data rooms
- Legacy VRLA replacement retrofits
20-foot containers.
2,362 kWh each. VPP-ready.
LEVIATHAN is XEYAR's utility-scale container BESS. Each 20-foot Na-ion container delivers 2,362 kWh and supports frequency regulation, energy arbitrage, and renewable integration. Multi-container deployments scale to tens of MWh. Designed for outdoor deployment with IP55 rating and 200% daily cycling.
VPP and wholesale-market ready via XEYAR Nexus. Automated bidding into CAISO, ERCOT, PJM, NYISO, National Grid ESO. Revenue distribution engine handles platform, aggregator, installation partner, and asset-owner splits.
| Capacity per Container | 2,362 kWh (Na-ion) |
|---|---|
| Form Factor | Standard 20-foot ISO container |
| Enclosure Rating | IP55 outdoor |
| Daily Cycling | 200% |
| Fire Suppression | Gas suppression (zero thermal runaway chemistry) |
| Grid Functions | Frequency regulation, arbitrage, VPP, black-start (SuperCap) |
| Certifications | UL 9540, UL 9540A (passed), IEEE 1547 |
Ideal For
- Utility-scale frequency regulation
- Energy arbitrage & wholesale markets
- Renewable firming (solar & wind)
- Distribution system deferral
- Independent power producer projects
- VPP aggregation deployments
Deploy in hours, not months.
Optional integrated DC fast charging.
NOMAD is a mobile BESS platform for events, disaster relief, construction sites, military operations, and remote off-grid deployments. Sodium-ion ships non-hazardous under EU 2013/56/EU — road-transportable with no DOT hazmat classification. Optional integrated 60–240 kW DC fast-charging output makes it a complete off-grid EV charging solution.
Non-hazardous transport. Sodium-ion classification allows standard freight and drayage — no hazmat surcharges, no route restrictions, no specialized drivers.
| Capacity Range | 100–500 kWh |
|---|---|
| Optional DCFC Output | 60–240 kW |
| Form Factor | Trailer-mounted or skid-mounted |
| Deployment Time | Hours to days (no civil works) |
| Transport Classification | Non-hazardous (Na-ion) |
| Input Sources | Grid, generator, solar, wind |
| Operating Temperature | −40°C to +65°C |
Ideal For
- Disaster relief & emergency response
- Construction & remote job sites
- Events & film production
- Military forward operating bases
- Temporary EV charging (festivals, fleets)
- Remote mining & exploration
Cell-tower UPS.
30+ years. Zero truck rolls for 6× the period.
CORVUS replaces lead-acid VRLA at cell towers, 5G/6G base stations, and telecom edge sites. The SuperCap variant delivers a 30+ year design life versus the 5-year cycles typical of lead-acid — eliminating five replacement truck rolls over the lifetime of the asset. IP55 outdoor rating. Sub-millisecond failover.
Total cost of ownership breakthrough. Five lead-acid replacements eliminated = five truck rolls, five disposal fees, and five downtime windows removed from OPEX over the asset's life.
| Capacity Range | 5–50 kWh |
|---|---|
| Design Life (SuperCap) | 30+ years |
| Failover Time | <1 ms |
| Form Factor | Outdoor cabinet, IP55 |
| Operating Temperature | −40°C to +65°C |
| Monitoring | Remote telemetry, SNMP, predictive maintenance |
| Certifications | UL 1973, IEC 62619, CSA C22.2 |
Ideal For
- Macro cell tower backup
- 5G / 6G small cell deployments
- Edge data center / MEC sites
- Remote microwave & repeater sites
- Fiber / ISP CO & hut backup
- Utility communication infrastructure
Power buffer for AI & GPU clusters.
Sized for modern compute transients.
CETUS is XEYAR's dedicated power buffer for AI and GPU compute environments. Modern hyperscale AI workloads produce millisecond power transients that collapse conventional Li-ion UPS cycle life. CETUS uses the same electrostatic SuperCap architecture as DRACO, tuned for the burst-heavy draw profiles of GPU clusters — absorbing spikes that would otherwise destabilize upstream PDUs or trigger facility-level protection.
Built for the AI data center boom. A single rack of H100-class GPUs can swing hundreds of kilowatts in milliseconds. CETUS is designed to handle that load profile natively.
| Response Time | <1 ms |
|---|---|
| Discharge Rate | 5C continuous, higher peak |
| Cycle Life (SuperCap) | 500,000+ |
| Form Factor | Rack or row-integrated [TBD] |
| Deployment Pattern | Per-rack, per-pod, or row-level buffer |
| Integration | Upstream of GPU PDU |
| Certifications | UL 9540, UL 1973 [confirm scope] |
Ideal For
- Hyperscale AI training clusters
- GPU inference data centers
- HPC research facilities
- Crypto & high-density compute
- Pod-level power conditioning
- Retrofit of legacy UPS-limited rooms
Containerized microgrid.
Grid-forming. Island-capable.
WOLVERINE is a containerized microgrid BESS designed for island-capable operation — off-grid facilities, remote communities, military bases, mining camps, and critical infrastructure resilience. Pairs with on-site solar, wind, or generator assets. The SuperCap variant provides grid-forming inertia; the Na-ion variant extends island runtime for multi-hour outages.
True island-capable microgrid. Grid-forming PCS supports black-start and continuous island operation — not just ride-through — for communities, industrial sites, and FOBs.
| Capacity Range | 500–2,500 kWh |
|---|---|
| Form Factor | 10-ft or 20-ft ISO container |
| Enclosure Rating | IP55 outdoor |
| Grid Mode | Grid-following & grid-forming |
| Black Start | Supported (SuperCap variant) |
| Input Sources | PV, wind, diesel, grid |
| Operating Temperature | −40°C to +65°C |
Ideal For
- Remote & Indigenous communities
- Off-grid industrial operations
- Military forward operating bases
- Mining & resource extraction sites
- Island-nation energy transition
- Hospital & emergency-services microgrids
PV. Storage. EV charging.
One certified DC bus.
HELIOS integrates photovoltaic generation, battery energy storage, and EV charging into one UL 9540 certified DC boundary — the same patented architecture that powers XEYAR's standalone chargers. No separate PV inverter, no AC conversion step between storage and chargers. Ideal for dealerships, fleet depots, and commercial sites seeking a single-vendor, single-certification energy solution.
One architecture, one certification. PV + BESS + EV share the DC bus — fewer inverters, fewer conversion losses, one UL 9540 AHJ review instead of three separate system reviews.
| Architecture | DC-coupled PV + BESS + EV on shared bus |
|---|---|
| PV Input | Scales with site [kW range TBD] |
| BESS Capacity | Modular, scales with deployment |
| EV Output | L2 + DCFC, mixed on same system |
| Certification Boundary | UL 9540 DC ESS (patented pending) |
| Grid Interconnect | IEEE 1547, UL 1741-SB |
| Ideal Site Size | Dealership, depot, medium C&I |
Ideal For
- Auto dealerships (service + customer charging)
- Corporate & fleet depots
- Commercial / industrial campuses
- Hotels, hospitality with EV charging
- Mixed-use C&I with solar
- Net-zero building retrofits
Megawatt to tens of megawatt-hours.
Utility substation scale.
TITAN is XEYAR's largest BESS platform — multi-container megawatt-class deployments for utility substations, large industrial loads, independent power producers, and grid-support projects. Scales from 5 MWh to tens of MWh per site. VPP-capable via XEYAR Nexus, with automated wholesale-market bidding and revenue distribution across all stakeholders.
FEOC-compliant supply chain. Non-Chinese BMS/PCS with Dubai assembly positions TITAN for U.S. ITC 48E tax-credit eligibility and Canadian procurement preference programs.
| Site Capacity | 5–50+ MWh |
|---|---|
| Power Rating | 1 MW to 20+ MW per site |
| Form Factor | Multi-container utility yard |
| Enclosure Rating | IP55 outdoor |
| Grid Services | FR, arbitrage, VPP, BSS, T&D deferral |
| Market Integration | CAISO, ERCOT, PJM, NYISO, ISO-NE, MISO, SPP |
| FEOC Compliance | ITC 48E eligible (non-Chinese BMS/PCS) |
Ideal For
- Utility transmission & distribution deferral
- Independent power producer (IPP) projects
- Large industrial peak management
- Renewable-paired storage (solar + wind)
- Capacity-market participation
- FEOC-compliant federal & NEVI-adjacent projects
Pick your use case. We'll map it to a product.
Common deployment patterns and the BESS lines that fit each. Multiple products often apply — use this as a starting point for sizing conversations.
Residential Solar + Backup
Home energy storage, solar self-consumption, whole-house backup, TOU arbitrage.
Commercial & Industrial
Demand-charge reduction, solar/wind co-location, peak shaving, C&I UPS.
Data Center & AI Compute
Rack-level UPS, GPU transient buffering, hyperscale & colocation critical power.
Grid-Scale & Utility
Frequency regulation, arbitrage, VPP, transmission deferral, renewable firming.
Four things nothing else delivers together.
Two Chemistry Options
Supercapacitor or sodium-ion on every product line. Choose per project. One certified architecture handles either.
Zero Thermal Runaway
No lithium. No cobalt. No active thermal management required. Indoor-safe across the entire product line.
UL 9540 Certified
UL 9540, UL 9540A (passed), UL 1973, UL 810A, IEC 62619, UN38.3. Full regulatory stack across North America, EU, GCC, MENA.
FEOC Compliant
Non-Chinese BMS/PCS with Dubai assembly. Positioned for U.S. ITC 48E tax credits and Canadian procurement preference.
BESS questions, answered.
How do I choose between supercapacitor and sodium-ion BESS for my project?
Choose supercapacitor for high-cycle, high-power, short-duration applications (data center UPS, EV charge buffering, frequency regulation) — 500,000+ cycles, <1 ms response, 45-year design life. Choose sodium-ion for longer-duration energy storage where cycle count is lower (residential, commercial peak shaving, 2–4 hour grid storage) — 20,000+ cycles, 25-year life, higher energy density. Each project uses one chemistry on the certified DC bus; we help you pick during site assessment.
Can I mix supercapacitor and sodium-ion in one BESS system?
Not on the same DC bus. XEYAR's patented architecture uses one chemistry per project on the UL 9540 certified boundary. Choose per project. Hybrid deployments across multiple XEYAR systems at a single site are possible.
What certifications do XEYAR BESS products hold?
UL 9540, UL 9540A (passed), UL 1973, UL 810A, IEC 62619, UN38.3, CSA C22.2, and GB/T44265. Sodium-ion ships non-hazardous under EU 2013/56/EU.
What is the warranty on XEYAR BESS products?
Warranties range from 10 to 20 years depending on product line and chemistry. PHOENIX residential: 20 years. DRACO data center UPS: 20 years. Commercial and grid-scale: 10–15 years. All warranties cover performance degradation and manufacturing defects.
What markets does XEYAR actively serve for BESS?
Active markets: USA, Canada, GCC, and MENA. India expansion is underway. 3,500+ units deployed across 39 countries.
How long does BESS installation and commissioning take?
Residential (PHOENIX): 1–2 days. Commercial (DRAGONFLY): 1–2 weeks. Data center (DRACO): 2–4 weeks including integration testing. Grid-scale (LEVIATHAN, TITAN): 4–12 weeks depending on civil works. Mobile (NOMAD) deploys in hours to days.
Ready to specify your project? Let's build.
Every XEYAR BESS project starts with a site assessment — we size the system, recommend the chemistry, and confirm certification scope for your AHJ. Most inquiries get a preliminary quote within 72 hours.