The inverter converts DC from panels into usable AC and is the brains of the system. Picking the wrong type caps your yield and complicates monitoring.
String vs micro vs hybrid
- String inverter: cost-effective for unshaded roofs; one central unit.
- Microinverter / optimizer: per-panel conversion, best for shaded or multi-orientation roofs.
- Hybrid inverter: adds battery charging/discharging management — the standard for storage.
MPPT & sizing
Match the inverter's MPPT voltage range to the string. Keep DC/AC ratio around 1.1–1.3 and never exceed the maximum input current of each tracker.
Monitoring
Choose a brand with open monitoring APIs or at least a stable app; this matters for O&M and warranty claims.
Frequently Asked Questions
Do I need a hybrid inverter for batteries?
Yes — a hybrid (or a separate battery inverter) is required to manage charge/discharge. A plain string inverter cannot directly run most batteries.
Can I add batteries later to a string system?
Only if the inverter supports battery input, or by adding a retrofit AC-coupled battery inverter.