PHOENIX
Wall-mountable home battery storage. Solar integration, 100% depth of discharge, indoor-safe (zero thermal runaway). 20-year warranty.
SuperCap
Na-ion
7.2¢
LCOS/kWh
50,000+
SC Cycles
20 yr
Warranty
Two Breakthrough Energy Storage Technologies
Supercapacitor.
Supercapacitor.
Sodium-Ion.
You choose. We deliver.
Patent-pending battery-buffered EV charging and battery energy storage systems, deployed across USA, Canada, GCC, and MENA, with expansion into India underway. WEST has installed 3,500+ supercapacitor systems in 39 countries, validating the underlying technology XEYAR commercialises globally.
USPTO Patent-Pending · Hardware Architecture · 39 Claims
Patent-Pending Clustered EV Charging. Any Mix of Chargers. One System.
XEYAR's patent-pending DC ESS architecture for battery-buffered EV charging accepts multiple energy sources, stores energy in your selected technology, and delivers power to any combination of Level 2 and DC fast charging ports, all within a single UL 9540 certified boundary.
Bidirectional PCS (External)
The Power Conversion System sits outside the DC ESS boundary. It converts all inputs (grid AC to DC, solar MPPT, wind rectification) and all outputs (DC to AC for L2, DC to DC for DCFC, VPP and FFR export), connected to the DC bus via bidirectional DC link. UL 1741 / CSA C22.2 No. 107.1.
CMS: Charge Management (External)
The Charge Management System is also external to the DC ESS boundary. It controls PCS operations, manages EV charging sessions via OCPP 1.6 and 2.0.1, schedules TOU and off-peak charging, and orchestrates VPP grid export, all over WiFi, Ethernet, or 4G.
Multi-Source Energy Input
Grid (120 to 600V AC), solar PV (DC-coupled), wind (AC rectified), generator, and building panel all feed simultaneously into the bidirectional PCS.
Two Technology Options
Each project uses either supercapacitor or sodium-ion storage. Same certified architecture, same scalable outputs: choose the technology that fits your application's performance and cost requirements.
Mix Any Chargers on One System
Deploy any combination of Level 2 (J1772 or NACS, 3.84 to 28 kW) and DCFC (CCS1 or NACS, 10 kW to 750 kW+) ports on the same DC ESS. Scale up as demand grows.
Eliminates Grid Upgrades
Battery-buffered delivery means no costly infrastructure upgrades ($1M to $4M saved), no 12 to 24 month utility delays, and approximately 25% electricity savings through off-peak trickle charging.
VPP & Grid Services
Bidirectional PCS enables grid export, Virtual Power Plant participation, fast frequency response, demand response, and energy arbitrage through the CMS.
XEYAR Battery-Buffered Clustered EV Charging
Solar-integrated forecourt deployment, any mix of Level 2 and DCFC ports on a single system
BESS Product Lines
Energy Storage for Every Scale. Two Technology Options.
Six Battery Energy Storage System (BESS) product lines spanning residential to grid-scale. Each available in supercapacitor or sodium-ion technology: choose the technology that fits your project's performance and cost requirements.
DRAGONFLY
Modular commercial BESS for solar and wind co-location, plus demand-charge management. Up to 12C discharge for industrial peak load shedding.
SuperCap
Na-ion
12C
Discharge
200%
Daily Cycle
97%
RT Efficiency
DRACO
Standard 19-inch rack-mount UPS for data centers and critical power. 5C discharge, sub-millisecond response. 500,000+ cycles. Replaces legacy lead-acid VRLA.
SuperCap
Na-ion
<1ms
Response
5C
Discharge
45 yr
Design Life
LEVIATHAN
Utility-scale BESS in 20ft container format. 2,362 kWh per Na-ion container. Frequency regulation, energy arbitrage, renewable integration, VPP-ready.
SuperCap
Na-ion
2,362
kWh/Container
IP55
Outdoor
200%
Daily Cycle
NOMAD
Mobile BESS for events, disaster relief, construction, military, and remote off-grid sites. Optional integrated DC fast charging output.
SuperCap
Na-ion (Non-Haz)
100 to 500
kWh Range
60 to 240
kW DCFC Opt
Days
to Deploy
CORVUS
Compact UPS purpose-built for cell tower backup. 4G/5G/6G base stations and edge data centers. SuperCap delivers 30+ year design life vs lead-acid 5-year cycles.
SuperCap (30+ yr)
Na-ion
5 to 50
kWh Capacity
IP55
Outdoor
<1ms
Failover
USPTO Patent-Pending · Software Platform · 45 Claims
XEYAR NEXUS. The Intelligence Layer.
NEXUS is the software platform that makes XEYAR hardware intelligent. It orchestrates supercapacitor and sodium-ion storage as one unified system, routing millisecond transients to supercaps, sustained loads to batteries, and shifting allocation automatically with temperature. One certified hardware boundary. One intelligent control layer. One integrated revenue stack.
Supercapacitors exhibit decreasing ESR with heat; sodium-ion shows increasing impedance. NEXUS is the first platform to orchestrate both through a single chemistry-aware abstraction.
01
Chemistry Abstraction Layer
Normalizes supercapacitor (electrostatic) and sodium-ion (electrochemical) storage into one unified state vector: SOC, SOH, SOP, thermal state, faults. Opposite thermal coefficients. One control surface.
Claims 1, 3, 402
Thermal-Aware Hybrid Dispatch
Transients under 1 second route to supercaps; sustained loads route to Na-ion; seamless ramp-up and ramp-down handoff under load. Above 35°C or below 5°C, allocation shifts toward supercaps automatically.
Claims 5, 6, 7, 1503
OCPP 2.0.1 Bidirectional V2G
Charger management coordinates vehicle-to-grid sessions with VPP dispatch signals, while respecting every driver's minimum departure state-of-charge and scheduled departure time.
Claim 8 · V2G04
VPP Market Integration
Auto-registration with CAISO, ERCOT, PJM, NYISO, ISO-NE, SPP, MISO, and National Grid ESO via OpenADR 2.0 and IEEE 2030.5. Sub-100 ms dispatch via pre-staged edge commands. Bids up to $150/MWh in scarcity.
Claims 9, 10, 25, 2805
Automated Revenue Distribution
Metered settlement across platform operator, regional aggregator, installation partner, and asset owner. Default splits: 5 to 15% / 35% / 25% / 25 to 60%. Monthly reconciliation with payment-system integration.
Claims 12, 30 · Revenue Engine06
Federated Learning Analytics
Privacy-preserving fleet-wide predictive maintenance. Edge training, weights-only aggregation, data sovereignty preserved. Sub-2% RMSE state-of-health across heterogeneous chemistries. Differential privacy applied.
Claims 35, 37, 41
Battery-Buffered EV Charging
Ultra-Fast Charging. Anywhere. No Grid Upgrades.
How Battery-Buffered Charging Works
Battery-buffered EV charging stores grid energy at a controlled trickle rate in your selected storage technology, supercapacitor or sodium-ion, then releases it in high-power bursts to deliver ultra-fast DC charging. Even at sites where the electrical service could never support direct fast charging.
Mix any combination of Level 2 and DCFC ports on one system
10 kW to 750 kW+ DC fast charging output
Eliminates $1M to $4M grid infrastructure upgrades
Avoids 12 to 24 month utility interconnection delays
Approximately 25% electricity savings through off-peak charging
CCS1, NACS, and J1772 connector support
$262,800
Annual Revenue (240kW, 20% util.)
~2.9 yr
Payback Period
$331,128
360kW Annual Revenue
~25%
Electricity Savings
Five Patent-Pending EV Charger Families
From workplace fleets to highway megawatt corridors, every XEYAR DCFC runs on standard 100A grid service. The patent-pending shared DC bus delivers additive battery power on top of grid supply for instant high-burst charging.
XEYAR-PEGASUS
Compact battery-buffered DCFC for workplace fleets, small commercial sites, dealerships, and ZEVIP-eligible deployments.
SuperCap
Na-ion
30 to 40
kW/Port
2 to 8
Ports
25 to 50
kWh Battery
XEYAR-FALCÃO
High-power battery-buffered DCFC cluster for highway corridors, gas stations, large commercial sites. 1 to 16 ports. NEVI-aligned and ZEVIP-eligible.
SuperCap
Na-ion
120 to 360
kW/Port
1 to 16
Ports
50 to 300
kWh Battery
XEYAR-SPHINX
Ultra-fast battery-buffered DCFC for premium urban deployments, dealerships, and ultra-fast charge plazas. 10 to 15 minute charge times.
SuperCap
Na-ion
240 to 360
kW/Port
1 to 8
Ports
50 to 200
kWh Battery
XEYAR-KOMODO
Megawatt-class battery-buffered HPC hub. 4 to 12 dispensers per system. Heavy-duty trucks, freight corridors, depot megawatt charging.
SuperCap
Na-ion
240 to 720
kW/Port
4 to 12
Dispensers
100 to 150
kWh Battery
XEYAR-MAVERICK
Custom-engineered battery-buffered DC fast charger for projects beyond standard SKUs. Any power tier (30 kW to 1000+ kW), any port count, custom battery sizing.
SuperCap
Na-ion
Hybrid
30 to 1000+
kW Custom
Any
Port Count
Custom
Battery Size
Our Products
Built to Perform. Proven in the Field.
XEYAR DRAGONFLY (Na-ion)
250 kWh Na-ion BESS, Commercial & Solar
XEYAR DRACO
Data Center UPS, Sub-millisecond Failover
XEYAR Level 2 Cluster
Battery-Buffered L2 Charging, 8 Ports
Technology Comparison
Choose the Right Technology. Verified Specs.
Every number sourced from manufacturer datasheets, independent tests, and 10 years of field records.
| Specification | XEYAR SuperCap | XEYAR Na-ion | LFP Li-ion (Industry) |
|---|---|---|---|
| Cycle Life | 500,000+ | 20,000+ | 3,000 to 6,000 |
| Round-Trip Efficiency | 97%+ (99.1% cell) | 94 to 97% | 90 to 92% |
| Discharge Rate | Up to 5C, sub-1ms | Up to 12C | 1C typical |
| Charge Rate | Up to 5C | Up to 12C | 0.5 to 1C typical |
| Depth of Discharge | 100% | 100% | 80 to 90% recommended |
| Temp. Range | minus 40 to plus 65°C | minus 40 to plus 60°C | minus 5 to plus 45°C |
| HVAC Required | No | No (10 to 35°C recommended) | Yes |
| Thermal Runaway | Zero | Zero | Risk present |
| Design Life | 45 years | 25+ years | 10 to 15 years |
| Energy Density | 46 to 51 Wh/kg | ~59 Wh/kg | 120 to 160 Wh/kg |
| Best For | Power bursts, FFR, PV | Buffer, UPS, energy | Bulk energy storage |
Financial Advantage
The Numbers That Matter.
BESS LCOS, XEYAR PHOENIX
Levelized Cost of Storage7.2¢/kWh
vs Competing LFP67% lower
DRAGONFLY 250kWh System~$199,899
Battery ReplacementsZero
Analysis Horizon20 years
EV Charging ROI, FALCÃO 240 kW
Annual Revenue (20% util.)$262,800
Net Income After Tax~$80,320
Payback Period~2.9 years
Electricity Savings~25%
360kW System Revenue$331,128/yr
Frequently Asked Questions
Everything You Need to Know.
What energy storage technologies does XEYAR offer?
Two technology options on one certified architecture: Supercapacitor (500K+ cycles, 45 year design life, sub-millisecond response, greater than 97% efficiency) or Sodium-Ion (20K+ cycles, 25 year design life, up to 12C discharge, zero SEI/CEI degradation). You choose one technology per project. Both have zero thermal runaway risk.
What is the patent-pending EV charging architecture?
A clustered system with a DC ESS boundary (UL 9540 certified) that accepts multi-source input (grid, solar, wind, generator), stores energy in your selected technology, and powers any mix of Level 2 and DCFC ports on the same system.
Can I mix Level 2 and DC fast chargers on one system?
Yes. Any combination of Level 2 (J1772 or NACS, 3.84 to 28 kW) and DCFC (CCS1 or NACS, 10 kW to 750 kW+) can run on one system. All ports connect to the shared DC bus through the certified DC ESS boundary.
What BESS products are available?
Six product lines: PHOENIX (residential, wall-mount, 20 year warranty), DRAGONFLY (commercial and solar co-location, up to 12C), DRACO (data center UPS, sub-millisecond, 5C, 500K+ cycles), LEVIATHAN (utility-scale 20ft container, 2,362 kWh per Na-ion unit, VPP-ready), NOMAD (mobile and portable, optional integrated DCFC output), CORVUS (4G/5G/6G telecom UPS, IP55 outdoor). Each available in SuperCap or Na-ion technology, choose per project.
How does battery-buffered charging work?
The system stores grid energy at a controlled trickle rate, then releases it in high-power bursts for ultra-fast DC charging, even at sites where the grid could not support direct fast charging. This eliminates $1M to $4M grid infrastructure upgrades, avoids 12 to 24 month utility interconnection delays, and saves approximately 25% on electricity through off-peak charging.
What certifications does XEYAR hold?
UL 9540, UL 9540A (passed thermal runaway test), UL 1973, UL 810A, UL 1741, UL 2202, UL 2594, IEC 62619, UN38.3, GB/T 44265, and CSA C22.2. Na-ion units ship non-hazardous under EU Directive 2013/56/EU.
Where does XEYAR deliver projects?
XEYAR operates a two-hub global service model. Toronto serves North America and Latin America. Dubai serves the Middle East, North Africa, and South Asia. Active markets include the United States, Canada, Mexico, Brazil, Argentina, Colombia, Chile, Peru, Costa Rica, the United Arab Emirates, Saudi Arabia, Kuwait, Qatar, Bahrain, Oman, Egypt, Morocco, India, Pakistan, Bangladesh, and Sri Lanka.
What proves the underlying supercapacitor technology works at scale?
WEST, the originator of the supercapacitor cell technology XEYAR commercialises, has installed more than 3,500 supercapacitor systems across 39 countries over the past decade. XEYAR builds on that proven cell platform with patent-pending clustered architecture, integrated chemistry-aware control software, and certified system-level integration for North American and global deployment.
Ready to Deploy?
Power Your Project With XEYAR.
Tell us your application: EV charging, residential, commercial, data center, or grid-scale. We will recommend the right technology and configuration for your project.