Question for all you solar experts
I have ordered a 250 watt Sharp 24 volt Solar panel. Now for my question. I would like to use a Morningstar Sun Saver 15 MPPT controller. The problem is that the sales person said that the 15 amp MP...
Forum Discussion
http://www.morningstarcorp.com/en/support/library/MPPT-Primer2.pdf
A 240W panel can outperform a 200W panel!
HTH;
John
Morningstar page 3 wrote:
Q2. Can I exceed the nominal wattage ratings of MPPT controllers? Will it void the warranty?
You can size Morningstar’s MPPT controllers well above the Maximum Nominal Solar PV Input rating without damaging the controller and without the charging current exceeding the maximum output current rating. The controller can limit output current and will run at 100% of rated current output and not higher. The controller was designed with this power-shaving capability and when oversized it does not void the warranty
A 240W panel can outperform a 200W panel!
Page 5 wrote:
In this case almost twice as much energy is gained (green area) than lost (red area) with 12.5% more energy available to charge the batteries than the 200W module.
HTH;
John
