The Discover Lithium Battery and Solis device automatically manage the battery charge and discharge rates. Using large solar arrays with battery banks that are too small can exceed the operating limits of the battery to charge and possibly lead to the BMS triggering over-current protection. Battery capacity must accept the maximum charge current of the system, or charging must be curtailed below the operating limit of the installed batteries. Derive this value by adding together the charge capacities of all inverter-chargers and solar charge controllers in the system. Additionally, battery peak capacity must support the surge requirements demanded by the load attached to the inverter. Match all inverter peak power values with the sum of all battery peak current values.
Inverter Peak = (Inverter Surge Value) / (Inverter Efficiency) / (48V: Low Battery Cut-Off)
|
Single-Phase Models |
Inverter Peak (10 seconds) (1)
|
Max Continuous Charge |
Max Continuous Discharge |
AES RACKMOUNT
|
HELIOS ESS
|
|
S6-EH2P9.6K03-SV-YD-L-US |
416 A |
200 A |
200 A |
3 |
2 |
|
S6-EH2P11.4K03-SV-YD-L-US |
494 A |
237.5 A |
237.5 A |
3 |
2 |
|
S6-EH2P12K03-SV-YD-L-US |
520 A |
250 A |
250 A |
3 |
2 |
|
S6-EH2P14K03-SV-YD-L-US |
607 A |
290 A |
290 A |
4 |
2 |
|
S6-EH2P16K03-SV-YD-L-US |
694 A |
290 A |
290 A |
4 |
3 |
(1) Calculated based on 2X rated output power in the Solis Split Phase Low Voltage Energy Storage Inverters S6-EH2P(9.6-16)K03-SV-YD-L-US.
(2) Discover AES RACKMOUNT 48-48-5120/48-48-5120-H Battery, Peak Power (3 seconds): 218 A RMS, 95 A DC Continuous Charge/Discharge (1 hour), as published in Discover AES RACKMOUNT Installation and Operation Manual (805-0043 Rev J).
(3) Discover HELIOS ESS 52-48-16000 Battery, Peak Discharge Current (15 seconds): 300 A RMS, 200 A Continuous Charge/Discharge, as published in Discover HELIOS ESS Installation and Operation Manual (805-0090 Rev D).
Australia
|
Single-Phase Models |
Inverter Peak |
Max Continuous Charge |
Max Continuous Discharge |
AES RACKMOUNT 48-48-5120
|
HELIOS ESS 52-48-16000
|
|---|---|---|---|---|---|
|
S5-EH1P3K-L(-AU) |
97 A
|
62.5 A |
62.5 A |
1 |
1 |
|
S5-EH1P3.6K-L(-AU) |
62.5 A |
62.5 A |
1 |
1 |
|
|
S5-EH1P4.6K-L(-AU) |
151 A
|
100 A |
100 A |
2 |
1 |
|
S5-EH1P5K-L(-AU) |
100 A |
100 A |
2 |
1 |
|
|
S5-EH1P6K-L(-AU) |
100 A |
100 A |
2 |
1 |
|
|
S5-EH1P3K-L-AU |
92 A
|
62.5 A |
62.5 A |
1 |
1 |
|
S5-EH1P3.6K-L-AU |
109 A
|
75 A |
75 A |
1 |
1 |
|
S5-EH1P4.6K-L-AU |
140 A
|
100 A |
100 A |
2 |
1 |
|
S5-EH1P5K-L-AU |
153 A
|
105 A |
105 A |
2 |
1 |
|
S5-EH1P6K-L-AU |
175 A
|
125 A |
125 A |
2 |
1 |
|
S6-EA1P3.6K-L |
80 A (3) |
75 A |
75 A |
1 |
1 |
|
S6-EA1P4.6K-L |
102 A (3) |
96 A |
96 A |
2 |
1 |
|
S6-EA1P5K-L |
111 A (3) |
105 A |
105 A |
2 |
1 |
|
S6-EA1P6K-L |
133 A (3) |
125 A |
125 A |
2 |
1 |
|
S6-EH1P3K-L-PLUS-AU |
132 A
|
70 A |
70 A |
1 |
1 |
|
S6-EH1P3.6K-L-PLUS-AU |
158 A
|
80 A |
80 A |
1 |
1 |
|
S6-EH1P5K-L-PLUS-AU |
220 A
|
112 A |
112 A |
2 |
1 |
|
S6-EH1P6K-L-PLUS-AU |
264 A
|
135 A |
135 A |
2 |
1 |
|
S6-EH1P8K-L-PLUS-AU |
352 A
|
190 A |
190 A |
2 |
1 or 2 (7) |
(1) Calculated based on the Max Apparent Output Power of 4.5 kVA or 7 kVA (10 seconds) and EU efficiency of 96.5% as per the Solis Single Phase Low Voltage Energy Storage Inverters S5-EH1P(3-6)K-L datasheet.
(2) Calculated based on the Max Apparent Output Power (60 seconds) and BAT charge/discharge efficiency of 94.9% as per the Solis Single Phase Low Voltage Energy Storage Inverters S5-EH1P(3-6)K-L-AU datasheet.
(3) Calculated based on the Max Apparent Output Power and BAT charge/discharge efficiency of 93.5% as per the Solis AC-Coupled Inverters S6-EA1P(3.6-6)K-L datasheet.
(4) Calculated based on the Max Apparent Output Power of 2 times of rated power (10 seconds) and EU efficiency of 94.7% as per the Solarator Series - Energy Storage Inverters S6-EH1P(3-8)K-L-PLUS-AU datasheet.
(5) Discover AES RACKMOUNT 48-48-5120/48-48-5120-H Battery, Peak Power: 218 A RMS (3 seconds), 95 A DC Continuous Charge/Discharge, as published in Discover AES RACKMOUNT Installation and Operation Manual (805-0043 Rev F).
(6) Discover HELIOS ESS Battery, Peak Discharge Current: 300 A RMS (15 seconds), 200 A DC Max Continuous Charge/Discharge, as published in Discover HELIOS ESS Installation and Operation Manual (805-0090 Rev E).
(7) The battery supports the maximum continuous charge and discharge currents from this inverter. To use the lessor number of batteries, limit the heavy loads that are active at any time on the system. If the peak current of loads on the circuit will push the inverter and batteries to their maximum limits, consider using the greater number of batteries.