Solar bits n pieces

Cheapest configuration:

  • String tied (series) panels + single string inverter

Monocrystalline better for cloudy days but less w/m2 ?

Cell power tolerance expressed as e.g. -5%/+5%, applies to a manufacturing line

  • MPP tracker is a device that combines a series of solar panels with mismatched current and finds the effective MPP at the string level
  • Per panel optimiser (cheaper option instead of micro inverters) is a DC to DC converter
    • https://www.ecodirect.com/Tigo-Energy-TS4-A-O-Module-level-PV-Optimizer-p/tigo-ts4-a-o.htm

Hybrid Inverter includes battery output

Some installations have both DC & AV batteries

  • DC Batteries charging is not included in the inverter w rating

Oversizing:

  • Most invertors have a limit e.g. 150% of rating and should shed the extra