Whats-n-Watts
New Member
Hello everyone. Probably currently the newest newbie here. I could use you professionals help with a small system. I have electrical experience with both AC and DC. My DC knowledge is basic and auto repair related. AC knowledge is a little better having been an electrician field in the past. Standard every day stuff. So at least I'm not totally green lol
I have a shed with 2 very freezers and one old refrigerator. They are getting replaced since they are energy hogs. 5 amp, 6 amp and 6.5 amp. New units are .98 amp x 2 chest freezers and one 1.2 amp refrigerator. By my calculations and estimates around 400 running watts combined.
I plan to power the shed (which it's sole purpose is housing these appliances) with solar. I live in South Georgia, USA and sunlight isn't an issue as the shed gets full sun 90 percent of the day.
I only want a system large enough to keep these running on solar during the day and battery overnight for one night.
using the 8 hr per day average run time I am figuring a bank to cover 4 of those hours of darkness on somewhat of a budget as in the most inexpensive safe way is what I want. I have a generator and have grid power if needed for rain days or low performance days.
At about 1,500wh to keep these appliances going 4 hours. I'm a tight wad or I wouldn't be looking to go solar in the first place lol Having said that I don't mind spending money to save money down the road.
I have beat my brain to pieces over the last two weeks with calculations and I'm tired Boss.
i came up with 2 x 195w 24v panels in parallel and a 24v 75ah battery fed by a 30a MPPT controller with a 600w pure sign inverter . Stop laughing ?
I am very frugal but my inner nerd (Dexter) (I have D.I.D. ?) keeps telling me I am better off going with a 12v 150ah battery for such a small system and because it's usually warmer here than cold it may perform better? I trust him but only so far as he is a novice solar enthusiast. I am sure someone in here can tell me the best way to make this happen safely and the most economical way. Thank each of you in advance for your precious time (and I mean that) to help us out.
Ron
I have a shed with 2 very freezers and one old refrigerator. They are getting replaced since they are energy hogs. 5 amp, 6 amp and 6.5 amp. New units are .98 amp x 2 chest freezers and one 1.2 amp refrigerator. By my calculations and estimates around 400 running watts combined.
I plan to power the shed (which it's sole purpose is housing these appliances) with solar. I live in South Georgia, USA and sunlight isn't an issue as the shed gets full sun 90 percent of the day.
I only want a system large enough to keep these running on solar during the day and battery overnight for one night.
using the 8 hr per day average run time I am figuring a bank to cover 4 of those hours of darkness on somewhat of a budget as in the most inexpensive safe way is what I want. I have a generator and have grid power if needed for rain days or low performance days.
At about 1,500wh to keep these appliances going 4 hours. I'm a tight wad or I wouldn't be looking to go solar in the first place lol Having said that I don't mind spending money to save money down the road.
I have beat my brain to pieces over the last two weeks with calculations and I'm tired Boss.
i came up with 2 x 195w 24v panels in parallel and a 24v 75ah battery fed by a 30a MPPT controller with a 600w pure sign inverter . Stop laughing ?
I am very frugal but my inner nerd (Dexter) (I have D.I.D. ?) keeps telling me I am better off going with a 12v 150ah battery for such a small system and because it's usually warmer here than cold it may perform better? I trust him but only so far as he is a novice solar enthusiast. I am sure someone in here can tell me the best way to make this happen safely and the most economical way. Thank each of you in advance for your precious time (and I mean that) to help us out.
Ron