Solar panels · Compare

Advance Power API-P225 vs Alps Technology ATI-M660-225

Peak power: Advance Power API-P225 225 Wp, Alps Technology ATI-M660-225 225 Wp. The Advance Power API-P225 is better on 3 of 5 comparable points.

Who wins where

  • Advance Power API-P225
  • Alps Technology ATI-M660-225

Biggest differences

FactAPI-P225ATI-M660-225
Temperature coefficient Pmax-0.45 %/°C-0.52 %/°C
Nominal operating cell temperature (NOCT)47.6 °C50.2 °C
PTC power rating200.5 W193.6 W
Efficiency13.7 %14 %
All specifications ↓

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

Technical specifications Advance PowerAPI-P225 Alps TechnologyATI-M660-225
General
Cell type Polycrystalline 1 Polycrystalline 1
Performance
Peak power 225 Wp 1 225 Wp 1
PTC power rating 200.5 W ✓ 1 193.6 W 1
Efficiency
Efficiency 13.7 % 1 14 % ✓ 1
Temperature coefficient Pmax -0.45 %/°C ✓ 1 -0.52 %/°C 1
Nominal operating cell temperature (NOCT) 47.6 °C ✓ 1 50.2 °C 1
Dimensions & weight
Width 995 mm 1 990 mm 1
Height 1,646 mm 1 1,626 mm 1

Sources

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