XEYAR BESS
Supercapacitor BESS
XEYAR’s Supercapacitor BESS lineup harnesses electrostatic energy storage – storing electricity as electricity, not through chemical conversion — to deliver unprecedented cycle life, safety, and efficiency across residential, commercial, data center, and grid applications. Engineered for a 30–45 year design life with a 20-year warranty, SuperCap BESS systems are built to outlast the buildings they protect.
SuperCap BESS Core Advantages
50,000+ charge-discharge cycles · 97% round-trip efficiency · 100% depth of discharge · Zero thermal runaway · -40°C to +65°C operation · Virtually no maintenance · 20-year product & performance warranty · 90%+ recyclable · Non-hazardous material shipping · Patent-pending Capacitor Management System (CMS)
XEYAR-Super PHOENIX Series — Residential BESS
The XEYAR-Super PHOENIX Series is a wall-mountable, modular supercapacitor energy storage system designed for residential solar, backup power, and peak-shaving applications. Replacing the conventional lithium home battery with a fundamentally safer and longer-lasting electrostatic alternative, the PHOENIX Series integrates seamlessly with existing solar inverters and grid infrastructure. Unlike lithium-based home batteries, PHOENIX systems require no fire separation, no special installation zone, and carry no thermal runaway risk – significantly reducing homeowners’ insurance considerations and installation costs.
Key Features
- Product Name: XEYAR – Super PHOENIX Series
- Module Configurations: PHOENIX-13 (6.6 kWh × 2 = 13.2 kWh) | PHOENIX-15 (4.95 kWh × 3 = 14.85 kWh)
- Usable Capacity: 100% (full depth of discharge)
- Rated Charge Voltage: 53.6 V
- Operating Temperature: −40°C to +65°C
- Cycle Life: Up to 50,000 cycles
- Round-Trip Efficiency: Up to 97%
- Warranty: 20-Year Product & Performance Warranty
- Expandable: Modular — up to 4+ modules per installation
- Thermal Runaway: Zero Risk (electrostatic storage)
- LCOS: ~7.2 USD cents/kWh (~67% lower than LFP)
The XEYAR-Super PHOENIX Series is backed by a 20-year limited product warranty and 20-year performance warranty with guaranteed minimum 60% capacity retention through Year 20. IoT-enabled remote diagnostics via the proprietary CMS platform provide real-time monitoring and proactive maintenance alerts. In cold climates (Canada, northern US, Scandinavia), PHOENIX outperforms LFP and solid-state alternatives that require restricted charging below 0°C — operating without restriction down to -40°C.
XEYAR-Super DRAGONFLY Series - Commercial Simple Storage
The XEYAR-Super DRAGONFLY Series is a high-performance electrostatic supercapacitor BESS engineered for commercial and light industrial applications including photovoltaic/wind co-location, peak demand management, load smoothing, and backup power. Featuring a 3C discharge rate and field-serviceable modular architecture, DRAGONFLY systems can be maintained or expanded without interrupting operations — making them ideal for 24/7 commercial facilities, retail centers, and light manufacturing environments.
Key Features
- Product Name: XEYAR – Super DRAGONFLY Series
- Application: Commercial PV/Wind storage, load leveling, peak shaving
- Discharge Rate: 3C continuous
- Operating Temperature: −40°C to +65°C
- Module Design: Field-replaceable without operational interruption
- Monitoring: Remote IoT via CMS
- Warranty: 10-Year Warranty (with 20-year design life)
XEYAR-Super DRACO Series - Data Center UPS
The XEYAR-Super DRACO Series is purpose-engineered for data centers requiring absolute reliability, zero-downtime power protection, and rapid scalability. With a 5C discharge rate and fail-tolerant modular architecture, DRACO systems replace aging lead-acid UPS banks and lithium-ion UPS systems with a fundamentally safer, longer-lasting, and lower-maintenance alternative. Critical to data center operations, DRACO modules can be serviced or replaced in the field without interrupting ongoing operations — delivering the 100% uptime demanded by Tier 3 and Tier 4 facilities.
Key Features
- Product Name: XEYAR – Super DRACO Series
- Application: Data center UPS, critical power backup
- Discharge Rate: 5C (rapid response)
- Architecture: Fail-tolerant, hot-swap modular
- Thermal Runaway: Zero risk — no fire suppression upgrade required
- Response Time: Millisecond discharge for instantaneous switchover
- Warranty: 10-Year Warranty
XEYAR-Super LEVIATHAN Series - Grid-Scale Storage
The XEYAR-Super LEVIATHAN Series delivers utility-scale electrostatic energy storage for grid frequency regulation, renewable energy firming, distribution network support, and ancillary services markets. Deployed as containerized systems at 480–860 VDC, LEVIATHAN installations provide the rapid-response, high-cycle performance that grid operators require to integrate intermittent solar and wind capacity without stability risk. With a 30–45 year operational life and negligible degradation, LEVIATHAN offers grid asset owners the lowest total cost of storage of any utility-scale technology platform.
Key Features
- Product Name: XEYAR – Super LEVIATHAN Series
- Application: Grid balancing, frequency regulation, renewable firming
- Voltage: 480 / 860 VDC
- Format: Container-based modular deployment
- Cycle Life: 50,000+ cycles
- Response Time: Millisecond — suitable for primary frequency response
- Design Life: 30–45 Years
SuperCap vs. Na-ion BESS — Technology Comparison
| Feature | XEYAR SuperCap BESS | XEYAR Na-ion BESS | LFP (Competitor) |
| Cycle Life | 50,000+ | 5,000–8,000 | 3,000–6,000 |
| Operational Life | 30–45 years | 10–15 years | 5–10 years |
| Round-Trip Efficiency | 97% | 95% | 90–92% |
| Depth of Discharge | 100% | 80–90% | 80% |
| Thermal Runaway Risk | Zero | Very Low (Na chemistry) | Yes |
| Operating Temp Range | −40°C to +65°C | −40°C to +60°C | 0°C to 45°C |
| Lithium Content | None | None | Yes |
| Hazardous Disposal | None | None (CNAS certified) | Yes |
| Warranty | 20 years | 10 years | 10 years |
| Best Application | High–cycle, extreme–temp, max–life | High–density, cost–sensitive, grid–scale | General purpose |