Posted March 1, 20205 yr Hi Everybody In 2019 we've decided to go completely off-grid. This realized on 23 Dec 2019 after months of preparation (You will understand if you look at the photos below). In short, I had an outbuilding that was already at roof height and I've decided to do the installation in one of the rooms. It was possible to have all cabling inside of the wall.
March 1, 20205 yr Author In the next picture the generator in and 220V out from the inverter was installed.
March 1, 20205 yr Author Close up of cables going through wall and earth cable. There is enough space to double up on solar panels.
March 1, 20205 yr Author The current system 24X Renewsys 250W panels 2X 60A MicroCare MPPT's 1X 10kW MicroCare intvertor 2X SolarMD LiFePO4 7.4kW batteries Expansion possiblity 24X more PV Panels 2X more 60A MPPT's 1X more SolarMD LiFePO4 7.4kW battery
March 1, 20205 yr I hope your site security is very good, because the ground mount is not elevated and is easy to access. What size is that Microcare Inverter
March 1, 20205 yr Author 58 minutes ago, phoenix752 said: I hope your site security is very good, because the ground mount is not elevated and is easy to access. What size is that Microcare Inverter Site security is good. Temporary setup. Cannot decide whether I want to play with sun tracking or build an afdak. 10kW inverter
March 2, 20205 yr Ok...I like these low frequency inverters (transformer based). They last long and its a good investment
March 4, 20205 yr On 2020/03/02 at 9:43 PM, phoenix752 said: Ok...I like these low frequency inverters (transformer based). They last long and its a good investment Try to tell this to the guys on the 4x4 forum. uuurrrggggg!!!
March 5, 20205 yr 11 hours ago, Gerlach said: Try to tell this to the guys on the 4x4 forum. uuurrrggggg!!! 4x4 guys are another species. They live in 12V land, they think National Luna makes the greatest stuff, and it's amazing how much stuff they'll put onto a single 100W module... at least until day two 🙂
March 5, 20205 yr 5 hours ago, plonkster said: 4x4 guys are another species. They live in 12V land, they think National Luna makes the greatest stuff, and it's amazing how much stuff they'll put onto a single 100W module... at least until day two 🙂 You can say that again @plonkster . Me and TTT are fighting for our lifes there. Hahahahahaha. We had a guy "wit warm" yesterday, i think he started beading his keyboard. Oooooooo yes, and don't forget ther 105ah camping batteries. 😁 @LouisT seen it yesterday. Hahahahaah Edited March 5, 20205 yr by Gerlach
March 5, 20205 yr 5 hours ago, plonkster said: 4x4 guys are another species. I am not a member on any of the 4x4 forums, but I remember stumbling onto a thread one day on some SA 4x4 forum, and the one guy had the perfect idea for a perpetual motion machine, other members tried to explain to him that it wasn't possible, to him the law of thermodynamics was just a annoying law soon to be legislated away IIRC he also drove a Land Rover, make with that what you will .
March 5, 20205 yr Author 3 hours ago, Gerlach said: You can say that again @plonkster . Me and TTT are fighting for our lifes there. Hahahahahaha. We had a guy "wit warm" yesterday, i think he started beading his keyboard. Oooooooo yes, and don't forget ther 105ah camping batteries. 😁 @LouisT seen it yesterday. Hahahahaah You caught me out 😁
March 5, 20205 yr 3 hours ago, Gerlach said: You can say that again @plonkster . Me and TTT are fighting for our lifes there. Hahahahahaha. We had a guy "wit warm" yesterday, i think he started beading his keyboard. Oooooooo yes, and don't forget ther 105ah camping batteries. 😁 @LouisT seen it yesterday. Hahahahaah It will take years for them to understand what a deep cycle battery mean
March 9, 20205 yr Great installation. I have also have a similar MPPT from Microcare. What settings are you using on it ?
March 9, 20205 yr Author 12 hours ago, 20VT said: Great installation. I have also have a similar MPPT from Microcare. What settings are you using on it ? It is for the SolarMD battery, but I will check for you.
March 10, 20205 yr 21 hours ago, LouisT said: It is for the SolarMD battery, but I will check for you. Yes understood but its for a LiFePO4 battery correct
March 11, 20205 yr Author On 2020/03/10 at 5:16 PM, 20VT said: Yes understood but its for a LiFePO4 battery correct Correct LiFePO4. I assume you have the manual. Below my settings: 8.1) Float Voltage = 13.4V (X4) 8.2) Boost Voltage = 13.6V (X4) 8.3) Boost to Float Voltage interval = 1 hour 8.4) Boost to Float Current = 15A 8.5) Equalise Charge Mode = Manual 8.6) Battery set Voltage = Auto 8.7) Charge limit = 80% 8.9) Set operation Mode = fmode0
March 12, 20205 yr On 2020/03/11 at 6:50 PM, LouisT said: Correct LiFePO4. I assume you have the manual. Below my settings: 8.1) Float Voltage = 13.4V (X4) 8.2) Boost Voltage = 13.6V (X4) 8.3) Boost to Float Voltage interval = 1 hour 8.4) Boost to Float Current = 15A 8.5) Equalise Charge Mode = Manual 8.6) Battery set Voltage = Auto 8.7) Charge limit = 80% 8.9) Set operation Mode = fmode0 Thanks for sending this. I do have the MPPT manual but there is no specific settings for different chemistry batteries. For interest sake how long does it take for your batteries to go to charge ? I should have been clear that I don't have a solarmd battery but other LiFePO4 Edited March 12, 20205 yr by 20VT
March 12, 20205 yr Author 34 minutes ago, 20VT said: Thanks for sending this. 1) I do have the MPPT manual but there is no specific settings for different chemistry batteries. 2) For interest sake how long does it take for your batteries to go to charge ? 3) I should have been clear that I don't have a solarmd battery but other LiFePO4 My pleasure 1) The settings should come from your battery supplier. The settings above is from SolarMD. 2) Not too sure what you mean, but as soon as I have sunlight on my panels the MPPT's start charging. My batteries are charged by 11:30 to 12:30. 3) Understood👍
March 12, 20205 yr 24 minutes ago, LouisT said: My pleasure 1) The settings should come from your battery supplier. The settings above is from SolarMD. 2) Not too sure what you mean, but as soon as I have sunlight on my panels the MPPT's start charging. My batteries are charged by 11:30 to 12:30. 3) Understood👍 Thanks for the info
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