A guide to choosing on-grid and hybrid solar inverters: capacity, MPPT, single or three phase, battery compatibility, and an overview of the Growatt, Huawei, and GoodWe lines.
Two solar systems with the same panels can deliver different results because of one component: the inverter. The inverter decides how efficiently energy is drawn from the panels, how the battery is charged, what happens during a PLN outage, and how easy the system is to monitor.
The three brands below are widely used in Indonesia and have both on-grid and hybrid lines. Series and specifications change over time, so always refer to the latest datasheet.
| Brand | Example on-grid lines | Example hybrid lines | Battery ecosystem |
|---|---|---|---|
| Growatt | MIN TL-X (1 phase), MOD (3 phase) | SPH (LV battery), MOD XH / MIN XH (HV battery) | ARK (HV) and compatible LV batteries |
| Huawei | SUN2000 (residential & commercial) | Battery-ready SUN2000-L1 / M1 | LUNA2000 (HV) |
| GoodWe | DNS / XS (1 phase), SDT (3 phase) | ES / EH (1 phase), ET (3 phase) | Lynx Home U (LV), Lynx Home F (HV) |
A practical formula: maximum panels per string ≈ the inverter's maximum DC voltage ÷ (panel Voc × cold-temperature factor). An illustrative example: a 600 V inverter and a panel with 52 V Voc and a factor of 1.08 → 600 ÷ 56.2 ≈ 10 panels per string. The minimum is set by the MPPT start voltage. Our calculator works this out automatically for every panel and inverter combination in the catalogue.
The inverter is now the hub of energy management: controlling batteries, heat pumps, EV chargers, and even responding to time-of-use tariffs. Cloud-based monitoring also makes predictive maintenance easier — the same pattern as IT infrastructure monitoring.
Yes, within the DC/AC ratio the manufacturer allows. Panels rarely reach full peak power, so slight oversizing increases morning and afternoon production.
They usually carry a 5–10 year warranty that can be extended. Install in a shaded, ventilated place so they don't overheat.
Preferably not in the same string. If you must, put them on different MPPTs.
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