mppt vs pwm
Hi, A nice little video comparing mppt vs pwm with the batteries in bulk mode. mppt vs pwm
Forum Discussion
Hi,
The video does the equivalent of a "perfect conditions" test. It shows about 20% gain.
Gathering real world data is good. But since conditions can't be duplicated it does remain some what anecdotal.
My real world measurements with 4 panels in series/parallel (fixed install, 256 watts total) show 17 amps of production at solar noon with clear skies in June and July (ambient 30 to 40 C) using a Blue Sky 3024di MPPT controller. The panels are 16.5 volts and input voltage to the controller is 33.
Charging starts 30 minutes after sunrise and ends at sunset.
I feel I got lucky. I wish there were an easy way for me to try PWM to see if results would be similar.
The solar system installed price was $2300.00. It has easily paid for itself.
The video does the equivalent of a "perfect conditions" test. It shows about 20% gain.
Gathering real world data is good. But since conditions can't be duplicated it does remain some what anecdotal.
My real world measurements with 4 panels in series/parallel (fixed install, 256 watts total) show 17 amps of production at solar noon with clear skies in June and July (ambient 30 to 40 C) using a Blue Sky 3024di MPPT controller. The panels are 16.5 volts and input voltage to the controller is 33.
Charging starts 30 minutes after sunrise and ends at sunset.
I feel I got lucky. I wish there were an easy way for me to try PWM to see if results would be similar.
The solar system installed price was $2300.00. It has easily paid for itself.
