Solar panels · Compare

Advance Power API-P300 vs Canadian Solar CS6X-300P

Peak power: Advance Power API-P300 300 Wp, Canadian Solar CS6X-300P 300 Wp. The Canadian Solar CS6X-300P is better on 4 of 5 comparable points.

Who wins where

  • Advance Power API-P300
  • Canadian Solar CS6X-300P

Biggest differences

FactAPI-P300CS6X-300P
Temperature coefficient Pmax-0.44 %/°C-0.4 %/°C
Efficiency15.4 %15.8 %
All specifications ↓

Score per area = position (0–100) relative to all 1000 models in this category; higher is better.

Technical specifications Advance PowerAPI-P300 Canadian SolarCS6X-300P
General
Cell type Polycrystalline 1 Polycrystalline 1
Performance
Peak power 300 Wp 1 300 Wp 1
PTC power rating 270.7 W 1 274.1 W ✓ 1
Efficiency
Efficiency 15.4 % 1 15.8 % ✓ 1
Temperature coefficient Pmax -0.44 %/°C 1 -0.4 %/°C ✓ 1
Nominal operating cell temperature (NOCT) 46.2 °C 1 45.8 °C ✓ 1
Dimensions & weight
Width 995 mm 1 976 mm 1
Height 1,961 mm 1 1,948 mm 1

Sources

  1. CEC Solar Equipment List – PV modules — California Energy Commission · accessed 27 Sept 2026