A central inverter is a single, centralized unit that connects to all solar panels in your system. In contrast, a microinverter is a small, module-level device installed directly behind each solar panel. However, central inverters have a shorter lifespan (10–15 years) than microinverters (15–25 years), meaning you’ll likely need to replace a central inverter once during your PV system’s 25–30 year lifespan. Central inverters, however, are sized to match your initial array; upgrading requires replacing the entire inverter, which is more costly. Warranties also vary: microinverter manufacturers often offer 10–25 year warranties, while central inverter warranties typically range from 5–10 years (with optional extensions available for an extra cost).