Single-phase

Runs on a 220-volt household supply. It suits homes and small businesses with modest daytime use, and is simple and affordable to install.

Three-phase

Runs on a 380-volt supply and handles heavy loads such as machinery, motors and multiple air conditioners while keeping the load balanced — a good fit for factories, offices and fuel stations.

Other things to consider

  • Roof area and orientation to the sun
  • Strength of the roof structure
  • How much power you use during the day
  • Grid-connection approval from the utility

ISAWAN engineers analyse your consumption and design a system that fits your building and pays back over the long term.