This guide helps installers choose between a hybrid and a string inverter in PV projects.
Hybrid or string inverter: what's the difference?
A string inverter only converts solar power into alternating current. A hybrid inverter can additionally connect and control a battery storage system directly — it is the basis for self-consumption, storage and backup power in a single device.
When should installers plan a hybrid inverter?
A hybrid inverter is the right choice as soon as storage is planned in a project — now or foreseeably. DC coupling works more efficiently in storage operation and saves a second device; backup-power functions can also be integrated directly.
When does a string inverter suffice?
A pure string inverter suffices when no storage is planned and the system only feeds power to the grid or for direct self-consumption. It is cheaper to buy but allows storage only via a later AC coupling.
DC- or AC-coupled storage — what does it mean for the choice?
A DC-coupled storage system connects to the hybrid inverter and is more efficient for PV self-consumption (one conversion). An AC-coupled storage system can be flexibly retrofitted to existing string systems but has higher conversion losses.
Which solutions does PVSelected carry?
PVSelected carries hybrid and string inverters from leading brands — including Sigenergy, Hoymiles and SOFAR Solar — coordinated with suitable storage and charging solutions.