Revolutionizing Energy Saving Solutions

Super Capacitor Based Energy Storage Solution

Kilowatt Labs’ Sirius Energy Storage is enabling a meaningful transition away from fossil fuels.

  • Battery with 45 years of life and 1 Million Cycles Life (Projected).

  • The world’s first supercapacitor-based energy storage system.

45 Years Life

Supercap cell projected calendar life of 45 Years.

1,000,000 cycle life

Supercap cell has cycle life of 1,000,000 cycles.

 

World's First

The world’s first supercapacitor-based energy storage system.

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Balanced & Stable Operation

Actively balanced and stable operation at all commercial voltages.

Energy Density of 70-80 Wh/kg

Cell level energy density of 70-80 Wh/kg. 

High Charge / Discharge

High Charge / Discharge Capability.

Sirius Dominant Attributes

  • Actively balanced and stable operation at all commercial voltages
  • Flat discharge curve (module discharge rate is determined by the load)
  • 2% per month self-discharge when idle and in sleep mode
  • Cell level energy density of 70-80Wh/kg
  • Supercap cell cycle life and capacity unaffected by high rate of charge or discharge
  • Supercap cell projected calendar life of 45 years and cycle life of 1,000,000 cycles
  • High charge / discharge capability
  • Wide operating temperature range of supercap cells
  • No degradation of capacity and efficiency over cycle life
  • Works with standard inverters/rectifiers/regulators used with Lead Acid or Li Ion batteries
  • Non-toxic, with no risk of thermal runaway
  • Form factor similar to chemical batteries

Sirius Advantage Over Chemical Batteries

Feature Sirius Chemical Batteries6
Supercap Cell Cycle Life (Projected)1 1,000,000 200 to 10,000
DC to DC efficiency (@25⁰C)1 99% (constant over life) 70% to 95% (degrades over life)
Useable Capacity (% of rated capacity) 100% (constant over life) 50% to 80% (degrades over life)
Temperature Range1 -30⁰C to 85⁰C -20⁰C to 65⁰C
Operation outside Temperature Range Yes No
Max. Rate of Charge2 1.7C (120C3) 0.1C to 0.5C (NA4)
Max. Rate of Discharge2 1.7C (120C3) 0.1C to 0.5C (NA4)
Thermal Runaway No Risk Medium to High Risk
Energy Density (Wh/kg) 70 to 807 70 to 1005
Disposal costs Deferred Significant
Environmental impact of disposal None Significant
Short/Medium/Long Duration Single module Different batteries for different deployment
Warehousing No maintenance Periodic charging

1 Performance may vary at different temperatures and at different C-rates.

2 Max. rate of charge and discharge is provided for a standard Sirius module. This rate may vary at different temperatures and for different Sirius modules.

3 Rapid charge of storage for EV’s.

4 Rapid charge at 120C is not possible with chemical batteries.

5 On useable capacity basis.

6 Publicly available information. Manufacturer data may vary.

7 Supercap cell level.