Beat Load Shedding

Hi. I am trying to understand what a basic Pure Sine Wave based UPS system will cost. (Inverter plus battery) I can conveniently source prices of inverters and batteries online, but the wiring and installation requirements and costs are not that easily understood by a noob like me without getting formal quotes. Requirements: - Wired into DB board - Specific circuits already identified which do no exceed 1500W when all is turned on at the same time. No items have high inrush current when turned on - Required time 2 hours - Recharge time 4 hours So What: I am actually considering a solar grid tied system. But I just cannot just…

Ive been looking at the two options.The quietest genny you can get for the power i need is the honda eu65is inverter gen at R60k.Its a 6.5kva unit with 5500W.Im in a complex so cant have a noisy gen.Ive phoned a few inverter supply companies and they reckon about R40k for a similar inverter unit with batteries.I need to run the following:1 x 12000 btu split unit aircon,non inverter (new ac)10 x overhead energy saving bulbs at 14w each,not led2 laptops and chargersFibre line,fibre router so we can work on laptops and have internet2 x 32" full hd led tvs and two dstv decodersPrice aside when we run into stages 3 to 8 the gap between sheds can be as short as 2 hrs.I believe …

When the lights go out what do you miss the most?

Good day. Installed a 10kV system consisting of the following. 18 330W modules, two Mecer 5000W Inverters (white and blue) and two 100A 48V Lithiums. All is well however i would like to set up the dynamics according to my needs. In short, during the day exclusively from modules. Night batteries and if batteries run below specified voltage, utility until panels basically takes over. Please be so kind to assist in this. Cant wait to get cracking.

Hi Need advice on a backup system for home. Db board split into essential and non essential loads each with an earth leakage. Essential load runs at max 8kwh per day average of around 270rwatt during the day. Was looking at using a Mecer axpert 5kva with a Changhong 48v 100ah battery with built in bms. Anything else which anyone can recommend without making me bankrupt?

Hi All, long time since I have been active on the forum😔 So I have a question for the more electronically enabled minds out there - I need to upgrade the power on a decades old yacht that will be cruising oceans without regular access to shore power. Referring to the attached line diagram you will see that there is 1.15kWp of solar which will charge a 48v 4.8kWh Lithium bank via MPPT (there are 2 heavy loads - a windlass to raise/lower the anchor (1.2kW) and an RO water-maker (1.2kW) - these will both be 48v in order to limit high currents otherwise required). There is also a 72v 60amp alternator which will be connected to the MPPT PV input via a C/O disconnecti…

Hey guys So I am in a predicament of some sorts, and have itchy fingers. Ultimately, I am just about mind-made-up of what my ultimate setup is going to be - Multiplus grid tied, 12-15 panels, 2x pylons. The predicament is that I will only be able to put funds towards this around April/May 2020, so still some time away. I do however have the following stuffs floating around at home already 2x 10w 12v solarwind panels, random 20a 12/24v pwm charge controller, 12v 120w inverter (that is probably at least 18 years old), 15x 7.2AH batteries. So as per the title, is there anything productive I could do with this? I was thinking of putting some China mall special …

Hi everyone, I'm still fairly new at this- only had my system for 6 weeks now. I have some questions regarding my set up. I have a single Axpert Inverter as identified in the topic header with 12 275w Panels and 2 GCL E-KwBE NC/5,6kWh lithium ion batteries Question 1. What would be the recommended back to battery and back to utility voltage figures ? Question 2. Looking at the voltages on the GCL batteries spec sheet the voltage range is indicated at 47V- 60,5V When I refer to the inverter manual, for the LCD settings 26 and 27 the bulk setting voltage only goes up to 58,4V. For setting 29 the low voltage setting on a 48V system has a setti…

A few questions if someone can help a newby? I want to install an Axpert 5KVA to manage load shedding with 4 (12v) AGM batteries (180 Ah each)feeding a few dedicated circuits. The dedicated circuits only carry the essentials of my house (few lights, PC's, Wifi, TV, electric fence, fridge etc). During load shedding the batteries provide the electricity and once mains are restored it charges the batteries. Consumption during peak time in early evening will be about 500 Wh for 2 -3 hours. Other times the base load seldom exceeds 200 Watts per hour on the essential circuits. If the batteries approach 40% DOD the inverter must shut down further discharge to prot…

Hi All Sorry if this has probably been asked before but I couldn't find it. I want to connect a small portable Ryobi 2.2kva inverter generator to my house Is it as simple as turning off the mains feed and plugging the generator into one of the wall sockets? and then turning off the large appliances/geyser to stay below 2KW Thanks in advance Brendon

Hi I am new to the forum and thank you for the acceptance. I am currently working on a project/got involved to assist a shelter that helps/assist woman and children that are getting out of abusive relationship or that have ended up on the street as the only way to get out of such relationships. 20 Wendy houses have been made available for living quarters with no electricity. I am planning to provide and install a solar system that will provide lights and hopefully in future a bit more like charging station/entertainment area with a inverter. Please note I am not asking for anything no donations nothing just some advice for someone who is handy to do …

Hi GUYS WANT TO START A BACKUP SYSTEM. BUDGET OF R20K-25K. NEED SOMETHING TO LAST AT MAX 4 HOURS. RUNNING 50X 5W LED BULBS, TV, DSTV, ROUTER, CCTV, 2 X PHONE CHARGERS, GATE MOTOR AND GARAGE MOTOR AND FRIDGE IF POSSIBLE. POINT ME IN THE RIGHT DIRECTION. SYSTEM DETAILS STEP BY STEP WOULD BE APPRECIATED. WILLING TO LEARN SO BE PATIENT WITH MY CONSTANT QUESTIONS. THANKS

Hi, I've been looking at this for a while now. Looking at the foll setup 8 x 350KW Canadian Solar (4 panels East & 4 panels West) 1 x 5048 Goodwe (toss up between ES / EM) 1 x PylonTech US3000 (initially maybe a 2nd unit when the budget allows) I did a calculation and I will typically use Day :1443W per hour (peak of 4543W if I switch on some heavy appliances) with a total of 7618W over a 6 hour day (12 423W if I switch on some heavy duty appliances that day). Night : 1367W per hour for about 3 hours, a total of approx 5142W over 12hrs overnight. I would like to use some of my battery at night so as to include …

I have a small offgrid setup that's been working diligently for a few years now unmaintained. I recently came back for a month visit after 2 years absence, and I need new batteries. My 24v ( 2 x 12v 200A) overnight batteries are pretty vrot after 6 years, and get down to 18v at about 5am with the houses minor basic load (mostly security camera's and a router). Yes, I know I should set cutout higher ie. 25v, but at this point, I'd rather get some more out of them for a couple of weeks before I recycle them. Both batteries are low, its not a case of unbalanced batteries, they're close to each other charge wise (from a cursory check with a multimeter) at various p…

This is my situation. I looked at Solar Power long and hard about 12 months ago and I became more and more unconvinced about solar in my situation. I have a small 250Ha bush farm on the coast with just indigenous game on it. So eventually I bought a 20kW quiet low-revving diesel generator which powers everything in my house and I love it. But… a generator is only 60% of the solution. If the power goes off when I don’t need power, then I leave the generator OFF. If we are doing something which does require power, I set the generator to auto, so that it will come on within 10 seconds of Eskom going down. If I go out for the whole day, I leave the generator off, b…

Howdy everyone, We have put our house in the market as we're moving to a bigger place, but the last few days have seen our area having quite a few power outages (things tripping City Power says). I'm worried that having a power outage before or during showing buyers the place (as they tend to come after work or some-such) will have a negative effect on the "experience". Would it be worth my time and money to put in an inverter with a basic battery bank to keep the lights on? (i.o.w no solar, just grid and battery) And how quick can such installations be performed generally speaking? Gracias. -- Hein.

Hi guys So I have been doing some research and then I saw this. Granted it includes a Tesla system but what is a reasonable cost for a 3kw system? As I have it: Inverter - 3kw Replus Sineon / Infini - R14k Batteries - 8 x 6v Trojan 225ah - R16k (Smaller than above yes but lets say I double up?) Solar panels 12 x renesola 305w - R33k Cabstrut mounting and labour/COC etc - R17k max I think So R80k total What am I missing - or tesla worth the premium

I know that this can be a lengthy discussion with a lot of technicality's, but i will try and keep it short. My main aim of this post is to find out if some of the Forum members has done these tests before and if the results I got is in line with the industry norm. First of, my pocket calculator isn't halve as big or clever as @plonkster machine, so this is figures I see combined with assumptions I make. Today is the first hot day with clear skies since I started using AICC, and being at home today i decided I am going to push the system a bit and manage the load manually to try and stay as close as possible to full capacity without sacrificing battery power. …

Hi All, Need some advise please, Very new at this so please bear with me here..... Current set up 8 by J305 6V in 2 strings of 24v 620AH 3KVA 24v Axpert Plus 4 by 300watt panels, adding 2 more in the next few days.Panels in strings of 2 2 by Victron energy Bmv702 Max Amps pulled by the next morning is 125AH of the 620AH I have. The washing machine, tumble dryer and dish washer still on Eskom. If i just chanced the Axpert to 48v, my battiery bank would drop to 310AH, would my Amp drop in half to 62,5AMP in the morning? or am looking at this all wrong. Could I keep my panels connect the same way as i am only getting around 60V. Would going 48V b…

Hi all Im quite excited to share this with you. So I connected all my house lights to my inverter. Yesterday afternoon I started my logging and then ran this report this morning Displays battery capacity and battery voltage overnight till this morning. Lowest battery capacity = 71 % but started recovering after everybody went to bed. See orange line. It recovered to about 89 % Battery voltage stayed pretty constant as per the blue line. By 9 am this morning my solar panels had already charged the batteries back to 100% capacity.

Way I explain to people: - What do you want? - What do you need? - Why? There is a HUGE difference in price. An inverter is like your car's engine. It does not matter what size it is, in the end, the engine size is of no consequence if the tank is empty. With power solutions, the fuel tank is the batteries. And that is where we miss the pot easily. Inverters: You can get a 5000w inverter or a smaller 1200w inverter. The question you need to ask yourself: What is my load ... and you need to differentiate between: Wants and Needs. And then you need to decide: 48v or 24v? 24 versus 48v batteries - Solar and UPS: You tend to find 1 battery starts losing…