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Hi Guys, Merry Christmas and happy new year when it comes.
I don't know if this question ever been asked. I would like to know if I can use the APC Back-UPS Pro 650VA as an inverter for a small solar system? If not can you tell me why?
My wife has a little gift shop. She has a little ~4 cu.ft refrigerator and some lights and a laptop plus 1 desktop radio/fan I like to use a small solar system to support these equiptments.
The power company charge her about $8000 Ja dollars per month included the grovenment consumption Tax. it is about $80 US Dollars. I try to see if make sense to do some solar assist to cut down the eletricity bill.
The shop is open from 8:30 am to 5:30 pm Monday to Thursday, 8:30am to 6:30 pm on weekends and 9:00 am to 1 pm on Sundays.
I use the AC clamp amps meter to check the consumption, the refrigerator draw about ~1.75 to 2 amps 110volts that is about 220 watts, the laptop and a cash register plus a desktop radio/fan draw less than 1 amp so that is about 100 watts, 3 led lights at 18 watts each total 54 watts.
The total watts to the solar circuit would be about 374 watts. The ups is rated 650VA 410watts. The original battery in the ups has died long time ago, I can't get the replacement in Jamaica so I took it out and connect a pair of wires to a old car battery which is dying also. The total consumption in the month is about 145 to 160KWH which including a 45watts standing fan and 3 more 3 watts LED light that won't be in the solar circuits.
If I get 2 240watts solar panels and a mppt 40 amps charge controller and 2 6volts 200amps battery, would it be able to supply the demand? We got Sun from 8:00am about 40% power and 10 am to 2pm would be about ~full power (65% from stickers rating?) then 2 to 4pm about ~35 to 40% again.
What is the cheapiest reasonable mppt 40amps controller? I can get 2 200 amps batteries for JA$25000 and the 2 panels for JA$45000. I seem can't find the mppt 40 amps in Jamaica at all. They dealer only stock 60amps mppt CC which cost about JA$65000 or the cheap 30 amp none mppt CC for JA$16500. if the UPS can't work then there is one 600watts pure sine inverter for JA$26000.
Would this system work? We have the grid to depend on if rainy day so I don't have to have high capacity battery banks. the battery is just to use for the early morning and the late evenings. The aim is try to save JA$5000 per month, so less than three years would pay for the investment.
If the system cost me around US$1500, it will be pay back within 3 years.
Thank you.
Sorry for the long post.
I don't know if this question ever been asked. I would like to know if I can use the APC Back-UPS Pro 650VA as an inverter for a small solar system? If not can you tell me why?
My wife has a little gift shop. She has a little ~4 cu.ft refrigerator and some lights and a laptop plus 1 desktop radio/fan I like to use a small solar system to support these equiptments.
The power company charge her about $8000 Ja dollars per month included the grovenment consumption Tax. it is about $80 US Dollars. I try to see if make sense to do some solar assist to cut down the eletricity bill.
The shop is open from 8:30 am to 5:30 pm Monday to Thursday, 8:30am to 6:30 pm on weekends and 9:00 am to 1 pm on Sundays.
I use the AC clamp amps meter to check the consumption, the refrigerator draw about ~1.75 to 2 amps 110volts that is about 220 watts, the laptop and a cash register plus a desktop radio/fan draw less than 1 amp so that is about 100 watts, 3 led lights at 18 watts each total 54 watts.
The total watts to the solar circuit would be about 374 watts. The ups is rated 650VA 410watts. The original battery in the ups has died long time ago, I can't get the replacement in Jamaica so I took it out and connect a pair of wires to a old car battery which is dying also. The total consumption in the month is about 145 to 160KWH which including a 45watts standing fan and 3 more 3 watts LED light that won't be in the solar circuits.
If I get 2 240watts solar panels and a mppt 40 amps charge controller and 2 6volts 200amps battery, would it be able to supply the demand? We got Sun from 8:00am about 40% power and 10 am to 2pm would be about ~full power (65% from stickers rating?) then 2 to 4pm about ~35 to 40% again.
What is the cheapiest reasonable mppt 40amps controller? I can get 2 200 amps batteries for JA$25000 and the 2 panels for JA$45000. I seem can't find the mppt 40 amps in Jamaica at all. They dealer only stock 60amps mppt CC which cost about JA$65000 or the cheap 30 amp none mppt CC for JA$16500. if the UPS can't work then there is one 600watts pure sine inverter for JA$26000.
Would this system work? We have the grid to depend on if rainy day so I don't have to have high capacity battery banks. the battery is just to use for the early morning and the late evenings. The aim is try to save JA$5000 per month, so less than three years would pay for the investment.
If the system cost me around US$1500, it will be pay back within 3 years.
Thank you.
Sorry for the long post.
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