Solar Inverter Buying Guides
Practical guides to specifying and understanding solar inverters, written from the datasheet data in this database. Every figure quoted is sourced from the manufacturer.
Buying guide
How to Choose a Solar Inverter: A Specifier's Guide
A working guide to specifying your first PV inverter: the four topologies, how AC power relates to array size, why the MPPT voltage window decides which strings will run, and what to check before you order.
7 min readHybrid Inverters and Battery Storage Explained
What makes an inverter hybrid, how AC and DC coupling change round-trip efficiency, high- vs low-voltage battery banks, what backup really requires, and when to buy hybrid.
7 min readComparison
Technical explainer
How to Size a Solar Inverter: DC/AC Ratio and Strings
How to size an inverter against a real array: the DC/AC ratio and why oversizing is standard, what clipping actually costs, and how to check cold-morning Voc, hot-afternoon Vmp and per-MPPT current, with a worked example.
7 min readMPPT Explained: Voltage Window, Channels and Current
What maximum power point tracking does, how the voltage window and channel count constrain string design, and how to read the MPPT fields on an inverter datasheet.
7 min readSolar Inverter Efficiency: Peak vs European Explained
The difference between peak and European weighted efficiency, what the weighting represents, and how efficiency and THD figures translate into real annual yield.
6 min readSingle-Phase vs Three-Phase Solar Inverters
Single-phase and three-phase supplies explained, with the power threshold where three-phase becomes necessary, why utilities care about imbalance, and how phase count changes backup power.
7 min readInverter IP Rating and Installation: Where to Mount It
What each IP digit means, what IP66 buys you over IP65 outdoors, and the temperature, ventilation, noise and cabling constraints that decide where an inverter should be mounted.
7 min read