GoodWe Inverter Calculator
Chinese hybrid inverter sizing — enter your kWp, application (residential single-phase, hybrid with battery, commercial 3-phase, or off-grid), and MPPT count to get the ideal GoodWe model, cost range ($0.10–0.18/W), battery compatibility (BYD/LG/Pylontech), and SEMS monitoring details.
| Metric | Value |
|---|---|
| System size | 5.00 kWp |
| Inverter series | MS Series — single-phase 3–10 kW string |
| Peak efficiency | 98.4% |
| MPPT inputs | 2 MPPTs × 2.50 kWp each |
| Inverter cost only | $500 – $700 (at $0.12/W) |
| Total system cost range | $1,988 – $2,712 |
| Net cost after 30% ITC | $1,645 |
| Year-1 production estimate | 7,363 kWh/yr |
| Warranty | 10-yr standard / 15-yr extended |
| Battery compatibility | String inverter — add AC-coupled battery for storage retrofit |
| Monitoring | SEMS Portal: free cloud monitoring, real-time yield, remote diagnostics, app included |
How to Use This Calculator
Enter system size and application
Enter your solar array size in kWp (kilowatt-peak) and select your application type. GoodWe covers the full range: the MS Series for standard residential single-phase installs (3–10 kW), the ET Series hybrid for systems that include battery storage (5–30 kW), the ETC Series for commercial 3-phase sites (8–50 kW), and the GW1500-XS-OFF for small off-grid or micro installations up to 1.5 kW. The calculator automatically selects the correct series and flags if your entered size falls outside the selected model's range.
Set MPPT count
MPPT (Maximum Power Point Tracking) inputs determine how your panel strings are organized. More MPPTs mean better tolerance for shading, different roof orientations, or partial cloud cover. GoodWe's ET Series supports up to 4 independent MPPT inputs — each string tracks its own power point without dragging down other strings. For a simple south-facing roof, 2 MPPTs are sufficient. For east-west split roofs or partially shaded systems, 3–4 MPPTs improve yield significantly.
Read the results
The calculator outputs: inverter cost range at GoodWe's $0.10–0.18/W price point (among the lowest of any major hybrid brand), total system cost with panels, net cost after 30% ITC, year-1 production estimate, battery compatibility (BYD, LG RESU, Pylontech), warranty details, and SEMS Portal monitoring access.
The Formula
Example: 10 kWp Hybrid with Battery
ET Series 10 kW hybrid + 10 kWh BYD battery
GoodWe's SEMS Portal monitors production, battery state of charge, grid export, and self-consumption in real time. The ET Series integrates directly with BYD, LG RESU, and Pylontech batteries — no third-party battery management system required. Self-consumption rates typically reach 75–85% with a 10 kWh battery on a 10 kWp system.