Energy Storage / UPS Systems
| Applications
| Performance
| Cost
| Strengths & Weaknesses
| Future Development
| Vendors |
Unlike the other DER equipment, whose rating tends to be determined by power generation or electrical efficiency, the performance of energy storage and UPS systems is determined by the capacity and duration of the equipment. The following table shows capacities of selected products.
A |
Flywheel |
120 kW |
20 sec |
B |
Flywheel/Battery |
160 kW |
15-30 min |
C |
Battery |
3.1 - 7.5 kVA |
15 min |
Battery |
0.7 - 2.1 kVA |
10 min |
Battery |
700 - 2100 kVA |
13 min |
Battery |
7.5 - 25 kVA |
17 min |
D |
Battery |
1250 kVA |
15 min |
Flywheel |
700 kW |
10 min |
E |
Battery |
450 - 1600 kVA |
6-12 min |
F |
Flywheel/Battery |
5-1000 kVA |
5-60 min |
G |
Battery |
0.14 - 1.2 kVA |
5-59 min |
H |
Battery |
0.28 - 0.675 kVA |
15 min |
Source: EPRI
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