
Supercapacitor Energy Storage: High-Performance, Cost-Effective, and Reliable
Harnyss supercapacitors provide high-efficiency electrostatic energy storage, delivering instantaneous power response, long life, and low total cost of ownership. Unlike lithium batteries, our advanced energy storage technology eliminates performance degradation and costly replacements, making it a practical, cost-effective solution for businesses, data centers, industrial operations, and microgrids.
Why Choose Harnyss Supercapacitors?
✔ Extended Operational Life – 25+ years of reliable performance with over 500,000 charge-discharge cycles, eliminating frequent battery replacements.
✔ Nanosecond Response Time – Instant energy delivery makes it ideal for uninterruptible power supply (UPS), backup storage, and power conditioning to stabilize loads and protect sensitive equipment.
✔ Reduced Risk Profile – No risk of thermal runaway or hazardous chemical reactions, providing greater operational safety.
✔ High Efficiency – 98% round-trip efficiency ensures maximum energy utilization compared to lithium's 80-90% efficiency.
✔ No Complex Cooling Systems – Operates in a wide temperature range (-25°F to 140°F) without the need for air conditioning or thermal management.
✔ Minimal Maintenance & Lower OPEX – No degradation means no augmentations or replacements, and no need for HVAC, fire suppression systems, or complex BMS.
✔ Scalable & Flexible – Modular system design scales from 500 kWh to 100 MWh+, integrating seamlessly with solar, wind, and grid power.
Core Advantages:
20+ Year Lifecycle: Long duration energy storage that surpasses lithium batteries.
- Rapid Energy Management: Ideal for instant power delivery needs.
- Unparalleled Safety Features: Ensures operation without the risk of thermal runaway.
- Commitment to Sustainability: Utilizes fully recyclable materials, aligning with green initiatives.
- Cost Efficiency: Reduces long-term expenses through minimal maintenance and longevity.



Supercapacitors
vs
20 Year Warranty
Warranty
25-30 years
Expected Life
500,000 cycles
No. of Cycles
98%
DC Round Trip Efficiency
100%
Depth of Discharge (DoD)
-25°F to 140°F
Exposure to Extreme Temperature
10 Minutes
Charge and Discharge
No Thermal Runaway Risk
Safety
No Replacements,
Low Lifetime Cost
Total Cost of Ownership
Minimal – No HVAC,
no fire suppression,
no chemical degradation
Maintenance Requirements
No Rare Earth elements.
99% recyclable after 20-30 year use
End of Life Disposal

Lithium Batteries
Up to 10 Years with Limited
Capacity
Warranty
5-8 years
Expected Life
6,000 - 10,000 cycles
No. of Cycles
80-90%
DC round trip Efficiency
70-80%
Depth of Discharge (DoD)
32°F to 120°F
Exposure to Extreme Temperature
1 hour
Charge and Discharge
Risk of overheating/fire
Safety
Frequent replacements
& high OPEX
Total Cost of Ownership
High – Requires cooling,
fire suppression, replacements
Maintenance Requirements
Hazardous disposal,
costly recycling required
End of Life Disposal