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
JiminDenver wrote:
At least there are a few more functioning smaller MPPT controllers now. The Eco-worthy didn't come out for a year after I found my panels and everything else that was affordable was fake junk. After paying $50 a panel it was hard to swallow hundreds to stay charged up for a week or two at a time.
Even though 230w has been more than enough for us, I would get the second panel in a heartbeat. You will want a matched set if you ever mount both and combine them. I'm stuck with separate systems if I use both panels.
As far as bumping the limit, unless you are really draining a big bank or doing big power draws at noon, you may not have to worry about it. Even with our panel flat we were in float pretty early and never saw full power at noon unless I was trying to use power.
the two things I'd change on the Eco-worthy are to have the ability to turn off the MPPT when it's cloudy and be able to set a time duration on the absorb stage. It doesn't last long with shallow discharges and while I can hold the float up to 14.5v if I want, it's not automatic. Other than that I can't find any bad reviews after a year .
If I use the Eco-Worthy controller I will be into the solar system for about $1.50 per watt. That is with a new US made Sharp panel. That doesn't include the mounting, but it will include the wire. I like the idea of using two separate systems if I decide to put on the second panel. The reason is that if I add two more batteries, they will probably be AGMs and I can keep them separate from my current batteries.
