Sol-Ark 12k
https://www.sol-ark.com/wp-content/uploads/12K-2P_SpecSheet.pdf
Sol-Ark 15k
https://www.sol-ark.com/wp-content/uploads/15K-2P_SpecSheet.pdf
EG4 18kPV
https://eg4electronics.com/wp-content/uploads/2023/05/EG4-18KPV-12LV-Spec-Sheet-1.1.1-1.pdf
| Specification | Sol-Ark 12k | Sol-Ark 15k | EG4 18kPV |
|---|---|---|---|
| Price | $5,299 | $8,999 | $5,599 |
| Input Data (PV) | |||
| Max. Allowed PV Power STC (utilizable) | 13,000W | 19,500W | 21,000W (18,000W) |
| Nominal Voltage Range | 175 - 425V | 175 - 425V | 100 - 600V |
| Startup Voltage | 125V | 125V | 100V |
| Max. Input Voltage | 500V | 500V | N/A |
| Max. Input Current per MPPT | 20A (self-limiting) | 26A (self-limiting) | 25A/15A/15A |
| No. of MPP Trackers | 2 | 3 | 3 |
| No. of PV Strings per MPPT | 2 | 2 | 2/1/1 |
| Max. AC Coupled Input | 9,600W | N/A | N/A |
| Output Data (AC) | |||
| Nominal AC Voltage (L-L) | 120/240V, 120/208V, 220V | 120/240V, 120/208V, 220V | 208/240V |
| Grid Frequency | 50 / 60Hz | 50 / 60Hz | 50 / 60Hz |
| Real Power, max continuous | 9,000W (1) | 15,000W | 12,000W/@208V 10,400W |
| Max. Output Current | 37.5A | 62.5A | 50A |
| Peak Apparent Power (10s, off-grid) | 16,000VA | 24,000VA | 24,000VA |
| Peak Apparent Power (100ms, off-grid) | 25,000VA | 30,000VA | 0.5s: 24,000VA |
| Max Output Fault Current (100ms) | 104A | 120A | N/A |
| Max. Grid Passthrough Current | 63A | 200A | N/A |
| Power Factor Output Range | +/- 0.8 adjustable | +/- 0.8 adjustable | 1 |
| Backup Transfer Time | 4ms | 5ms | <20ms |
| CEC Efficiency | 96.5% | 96.5% | N/A |
| Max Efficiency | 97.5% | 97.5% | N/A |
| Design (DC to AC) | Transformerless DC | Transformerless DC | TL (Transformerless) |
| Stackable | Up to 9 in parallel | Up to 12 in parallel | Up to 10 in parallel |
| Battery Input Data (DC) | |||
| Battery Technologies | Lithium / Lead Acid | Lithium / Lead Acid | Lithium / Lead Acid |
| Nominal DC Voltage | 48V | 48V | 48V |
| Operating Voltage Range | 43 - 63V | 43 - 63V | 40 - 60V |
| Capacity | 50 — 9900Ah | 50 — 9900Ah | N/A |
| Max. Battery Charge / Discharge Current | 185A | 275A | 250A |
| Charging Controller | 3-Stage with Equalization | 3-Stage with Equalization | N/A |
| Grid to Battery Charging Efficiency | 96.0% | 96.0% | 95% |
| External Temperature Sensor | Included | Included | N/A |
| Current Shunt for Accurate % SOC | Integrated | Integrated | N/A |
| Automatic Generator Start | Integrated | Integrated | N/A |
| Communication to Lithium | CANBus & RS485 | CANBus & RS485 | Rs485/Wi-Fi/CAN |
| General Data | |||
| Dimensions (H x W x D) | 750 x 450 x 254 mm / 29.5 x 17.7 x 10 in | 807 x 494 x 306 mm / 31.8 x 19.4 x 12 in | 34.3 x 20.5 x 11.2 in (87 x 52 x 28.5 cm) |
| Weight | 35.4 kg / 78 lb. | 61.2 kg / 135 lb. | 50 kg / 110.2 lbs. |
| Enclosure | IP65 / NEMA 3R | IP65 / NEMA 3R | IP65 / NEMA 4X |
| Ambient Temperature | -25~60°C, > 45°C Derating | -25~60°C, > 45°C Derating | -25~60°C, > 45° derating |
| Noise | < 30 dB | < 30 dB | < 50 dB |
| Idle consumption - No Load | 60W | 60W | ≈70W |
| Wi-Fi & LAN Communication | Included | Included | Rs485/Wi-Fi/CAN |
| Standard Warranty | 10 Years | 10 Years | 10 Years |
| Protection | |||
| Electronics Certified Safety | Yes | Yes | Yes |
| Grid Sell Back | Yes | Yes | Yes |
| PV DC Disconnect Switch | Integrated | Integrated | Yes |
| Ground Fault Detection | Integrated | Integrated | Yes |
| PV Rapid Shutdown Control | Integrated | Integrated | Yes |
| PV Arc Fault Detection | Integrated | Integrated | Yes |
| PV Input Lightning Protection | Integrated | Integrated | N/A |
| PV String Input Reverse Polarity Protection | Integrated | Integrated | N/A |
| AC Output Breaker | 63A | 200A | N/A |
| Battery Breaker / Disconnect | 250A | 200A x 2 | Yes |
| Surge Protection | DC Type II / AC Type II | DC Type II / AC Type II | DC Type II / AC Type II |
Notice anything wrong? Add a comment and I'll update the table.
The 18kpv is 21000w of PV STC, max utilizable power is 18kw.