4KW grid-tied battery backup system - Page 5

rhino 660 · 06-08-12, 08:31 AM

i made 258 kw i got billed for 208kw my total was 466kw consumed

gasstingy · 06-08-12, 12:33 PM

I've looked at the labels for electric 50 gallon HWH's and they use appoximately 4800 KwH annually according to the energy label. Easy to do the math to ~ 400 KwH month for a 50 gallon HWH. Even if you don't have a 50 gallon HWH, 466 KwH for a month is far better than me when your electric HWH is factored in. Well done!

I have a natural gas HWH and still used 291 KwH of electricity on my last bill. I was very pleased with that number until you raised the bar on efficiency.

06-13-12, 09:21 AM

Your system is looking so Nice. This residential 4 kW solar system includes Schott 220 solar panels that connect to an Outback 7.2 kW inverter.

nexsuperne · 06-18-12, 04:04 PM

Does your system charge into batteries as well? I have rigged mine through a relay so that when the mains fails and the grid tie goes offline, then the relay diverts the solar to the batteries which powers the uninterruptible power supply. This guarantees that all solar produced is used, and not wasted when the grid fails.

rhino 660 · 06-26-12, 07:49 PM

my system allways feeds the batterys

csteel · 09-02-12, 07:12 PM

I enjoyed looking at your PV build , It is very much like mine. Outback is great stuff. Did you add a Mate, Hub or Flexnet DC to your system? I would look at it. I had built two other Outback systems for friends and am doing one for our house. I have one more to do for a friend and will start his soon. Have you heard about VisualMATE by Wattplot careware it works great and helps everyone see what the system is doing. Chuck

06-08-12, 08:31 AM	#41
rhino 660 Apprentice EcoRenovator Join Date: Oct 2010 Posts: 105 Thanks: 0 Thanked 10 Times in 8 Posts	i made 258 kw i got billed for 208kw my total was 466kw consumed __________________ 2 ton geo unit 2400' HDPE slinkey 4KW solar with battery backup $8.98 power bill

06-26-12, 07:49 PM	#45
rhino 660 Apprentice EcoRenovator Join Date: Oct 2010 Posts: 105 Thanks: 0 Thanked 10 Times in 8 Posts	my system allways feeds the batterys __________________ 2 ton geo unit 2400' HDPE slinkey 4KW solar with battery backup $8.98 power bill

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06-08-12, 12:33 PM	#42
gasstingy Journeyman EcoRenovator Join Date: Feb 2010 Location: Arab, AL Posts: 491 Thanks: 109 Thanked 49 Times in 43 Posts	I've looked at the labels for electric 50 gallon HWH's and they use appoximately 4800 KwH annually according to the energy label. Easy to do the math to ~ 400 KwH month for a 50 gallon HWH. Even if you don't have a 50 gallon HWH, 466 KwH for a month is far better than me when your electric HWH is factored in. Well done! I have a natural gas HWH and still used 291 KwH of electricity on my last bill. I was very pleased with that number until you raised the bar on efficiency.

06-13-12, 09:21 AM	#43
kaismith Guest Posts: n/a	Your system is looking so Nice. This residential 4 kW solar system includes Schott 220 solar panels that connect to an Outback 7.2 kW inverter.

06-18-12, 04:04 PM	#44
nexsuperne Helper EcoRenovator Join Date: Feb 2012 Location: 30 miles east of London, UK Posts: 88 Thanks: 12 Thanked 19 Times in 18 Posts	Does your system charge into batteries as well? I have rigged mine through a relay so that when the mains fails and the grid tie goes offline, then the relay diverts the solar to the batteries which powers the uninterruptible power supply. This guarantees that all solar produced is used, and not wasted when the grid fails.

09-02-12, 07:12 PM	#46
csteel Lurking Renovator Join Date: Sep 2012 Location: Terlingua, Texas Posts: 4 Thanks: 1 Thanked 0 Times in 0 Posts	I enjoyed looking at your PV build , It is very much like mine. Outback is great stuff. Did you add a Mate, Hub or Flexnet DC to your system? I would look at it. I had built two other Outback systems for friends and am doing one for our house. I have one more to do for a friend and will start his soon. Have you heard about VisualMATE by Wattplot careware it works great and helps everyone see what the system is doing. Chuck