GRID STORAGE APPLICATION BRIEF

ULTRACAPACITORS
GRID STORAGE APPLICATION BRIEF
Standard 20’ container holds
1MW/60 seconds of energy storage
1MW • 60 SECONDS • 1,000,000 CHARGE-DISCHARGE CYCLES ENERGY STORAGE
As renewable energy sources grow in use and the percentage of grid power met by renewables increases
grid stability becomes an increasingly important issue. The variability in wind and solar output creates
instability on the grid. This variability also results in poor utilization of these resources by 30-50%.
Maxwell ultracapacitors can help combat these challenges by providing a few seconds of reactive power in
a cost effective and smaller package size. The long life, high power and superior charge/discharge cycling
of ultracapacitors make them the ideal energy storage for firming the output of renewable installations.
With Maxwell ultrapacitors energy storage, it is easy to design scalable systems with lifetimes over a
million charge/discharge cycles at 100% depth of discharge.
Renewables ride-through and firming, Hybrid Energy Storage Systems component
Applications
VARs support
Regulation up, regulation down
Renewable energy firming – wind or solar smoothing
Frequency regulation
Maxwell Technologies Over 11 GW total power installed
Scaleable energy storage 560V/1MW/60 seconds
20 foot container
Add your power electronics and controls
Green Technology
Lead free
No toxic materials
ULTRACAPACITORS
GRID STORAGE APPLICATION BRIEF
Specifications
48 V Module
56 V Module
165 F
130 F
Voltage
48 V
56 V
ESR, DC
6.3 mohm
8.1 mohm
5.2 mA
120 mA
Emax
3.9 Wh/kg
3.1 Wh/kg
Pmax
6,800 W/kg
5,400 W/kg
Capacitance
Leakage Current
1 MW / 60 Sec. / 1 Million Cycle Module Specifications
646 x 48 V Modules
500 x 56 V Modules
Capacitance
372 F
650 F
Voltage
740 V
560 V
Floor Space*
106 ft2
89 ft2
Peak Power**
23 MW
23 MW
Average Power**
1 MW
1 MW
Configuration
* 6’ height
** 75% Depth of discharge
Images not to scale
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