diy solar

diy solar

Need a little help please

rklinke

New Member
Joined
Oct 2, 2019
Messages
1
Morning, looking to get a little advice on setup, what I have is 2 – 136w solar panels, I also have 3 different power walls, one lead-acid bank of 3 12 series (36v) a 56v Li-ion (Boston-4400) and a 48v Lifep4 (headway)
Also, I have a 22-60v smart grid tie micro inverter and a MOES Dual Power Controller 50A 5500 Watt Automatic Transfer Switch for Off-Grid Solar Wind System ATS DC 12V 24V 48V AC 110V 220V witch you did a review on.
I do everything manually, I charger my batteries (if needed) in the am the I hook them up to the grid-tie for a couple more hours, during which time they take care of about 95% of my houses need, but if I hook up any of my batteries, as you know they suck them up as I have no way to slow down the discharger rate!! This is my question to you can I hook-up something like this:
ARCELI Communication Constant DC-DC Voltage Current Step-Down Power Supply Module Buck Voltage Converter Voltmeter 50V 5A(DPS5005+USB+BT)and slow down the discharger rate, I don’t need to dump 1000w to my grid if I only need 350-500w all the rest is going back to the grid (which I don’t want!)
Would love your thoughts on these thanks
Rich
 
I'm not sure I understand your question. If you want to slow down your discharge rate, you have to turn off devices that use power. A step-down convertor merely reduces volts and increases amps, and you use some power (watts) in the process due to inefficiency of the step-down circuit.

Power in >= power out, which is, watts in >= watts out. All boost or buck (step down) circuits have some inefficiency, from 2-20% inefficiency.
 
Back
Top