In Thailand DEDE promoted to installed solar power system on the roof top grid connected.
PV roof top system take advantage of the electricity generated from clean energy more efficiently.
The purpose of this study was to compare of very small inverters produced electric power energy to distribution PEA system of Thailand.
The compared power energy DC/AC power factor, efficient and total harmonics distortion (THD) to very small inverters 300W, 600W and 1,500 W.
The results found that the power energy output of 1,500 W more than 600W and 300W at power based unit about 10-15% at the intensity of light (600-1000 Wm2) and more than 20-30%at the intensity of light (200-600 Wm2).
The part efficiency of 1,500 W more than 600W and 300W at efficiency about 15-20% at the intensity of light (600-1000 Wm2) and more than 25-30% at the intensity of light (200-600 Wm2).
The lastly total harmonics distortion (THD)of 1,500 W less than 600W and 300W at the intensity of light (600-1000 Wm2) about 5-10% and10-20% at the intensity of light (200-600 Wm2).
This Significant of power energy DC/AC power factor, efficient and total harmonics distortion (THD) of solar roof top very small grid connected system.