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About Strepies

  • Birthday February 12

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  1. Hi Everyone, I thought I should let you know that I took the first step in my plan..... I am now owner (and operator) of a Deye 5kW inverter and a Freedom Won Lite 5/4. I did the installation myself with the intent of getting a professional in to do the final checks and commissioning. Then there was the threat of possible load shedding and I thought it was going to affect us so I started things up making double sure about everything I did and checking things many times. Everything went well with no trips, surprises or any smoke coming out. My system has now been running for 14 days and as things go we have not even had one power interruption. Is it wrong of me to hope for one? Here and there there are a few things which I suspect I can improve but I will first try and study previous posts and if required post where more appropriate. Thanks for all the inputs - I will be tapping your brains some more in the near future.
  2. @87 DreamNow I thought of something else - I assume if we talk about North for the sun we are talking about True or Geographic North. And a compass reads Magnetic North. I assume my Samsung also reads Magnetic North. I checked my magnetic declination here https://www.magnetic-declination.com/ and found that it is -19° 16' at the moment so I have to apply a correction as follows to confirm exactly which geographic direction my roof is facing. Not that I can change it
  3. @87 Dream I am not sure myself anymore. Maybe I have to check again.
  4. @TariqI am in Johannesburg - I do not blame you for missing that in that long post I wrote..... I am not sure whether we have more or less rainy days in a a row compared to Cape Town - is there a place to find such info? What I do know is that monthly we have a Service charge of R169.29(excl VAT) and a Network Charge of R498.72(excl VAT) plus another "Network Surcharge kWh" which is between R10&R20. With Vat this adds up to R780 per month - just like @87 Dream mentions I definitely want to stop paying that. While connected I will be paying that even if I do not use anything. This is a lot more than what you have in Cape Town @Tariq. This is also in line with what @nightcrawlernic says - once I start spending money on panels I want to end the eskom nightmare fast. @nightcrawlernicFor my "data collection" step I am thinking of putting two small strings of panels in two different locations to get an idea of which location is better. Afterwards I may put them all in the best spot. I am now wondering how much the results will differ between summer and winter even if I test the two locations at the same time. One spot may be good for summer and the other for winter - is there any wisdown out there. Two of the locations will be same angle but one is facing NNW and the other ENE. My geyser is 300liter and I am worried that a PTC element smaller that 3kW will take hours to heat the water - any experience on the forum? I am planning to put my batteries in the back of 4 identical kitchen cupboards of which only the front part is used. I realised that it is only the smaller Freedon Won Lite 5/4 and the Kodak FL5.2 that will fit into these spots. There are other locations which are more exposed to the elements and possibly even a theft concern. With my ;preferred location I am making my life difficult in a few ways: I am limiting myself to more smaller batteries, I am limiting myself to very few manufacturers, and the batteries will be in the back of a wooden kitchen cupboard - Do you think I am foolish to apply these limits to myself? Is there any danger with such a location? (I will add some vents) Thanks so far everyone! I am awaiting any further inputs.....
  5. Hi Everyone, I am new! I am in Jo’burg and I want to make my life better by investing in some backup and solar power for my house. I have done a bit of research but I now need to get into action. I am planning to install a system according to the following steps: Backup for load shedding and power interruptions: 5kW inverter and 5kWh LiFePO4 Battery with only essential items on the system. Start generating own solar power, gather more information and start to optimise: Add two strings of solar panels in different locations. Move some loads over. Increase storage and panels: Add a 2nd battery, increase PV panels, reduce loads and reduce peak consumption. Move more loads over. Go off grid: Add a 3rd battery, a 2nd Inverter and more panels if required. Off grid!! Final setup expected to be something like: 2x5kW Inverters in parallel, 3x5kWh LiFePO4 batteries, 4 strings of PV with approximately 10kW of panels. The inverters should have own charger, MPPTs, smart load, gen connection, battery interface, WiFi, protection, etc. Batteries should interface with inverter and have own BMS. I have decent roof space but the biggest part of the roof is not facing perfectly North, more like ONO. Other smaller roof sections face NNW or are flat. Some shading on most parts except for the flat part. My idea for where the batteries will fit is somewhat restricting and that influences the physical dimensions of the batteries I can choose from. We are 5 people living/working/studying from home. Current consumption is about 24kWh per day with a rare peak of up to 8.5kW. Big consumers are: Electrical backup for Solar geyser (4kW with Geyserwise mostly required only in winter), Pool pump 0.75kW for many hours, Electrical Oven max 4.2kW, Borehole pump 1.1kW and various other smaller users. All my lights are already LEDs, stove plates are all gas, other geysers are gas, I also have a 2kW generator which I can use in case of poor PV performance or other problems – currently my load shedding backup. I do not have the funds to install everything at the same time but I need backup power asap to allow working and studying from home. To achieve full saving on municipal power I hope to eventually disconnect to have no Service charge or Network charge anymore. I plan to do most of the installation myself and only get in the professionals for final connection/change over and commissioning. Apart from the above solar solution I also plan the following: Reduce peak power use as much as possible by reducing and staggering loads. Install a 3kW PTC geyser element rather than the standard 4kW I have now. Pool blanket to reduce pool pump running hours. Move some consumers to sunshine time to reduce battery need. E.g. pool pump, borehole pump, geyser, Geyser on Smart load (only receives power when battery full and PV power good) or heatpump or more solar collectors or a another solar geyser for winter in series to the current one. Now I have the following questions: Any advice or inputs on the above plans? Any experience with similar setups which can be shared? Looking at my steps and my final setup – do you think it is going to work out? Any other recommendations for optimisation or improvement? Any recommendations on specific equipment? My current favourites are Deye Inverter and Freedom Won batteries. Are there any forum members who would be willing to send me a quote for supply of equipment and/or installation? Are there any forum members with advice on where to get good prices for any of the above components? What are the requirements for such a system? Standards to comply with? What are the approvals I need before I can start with my plan? Thanks in advance – I see there is lots of good advice on this frum and I hope to learn a lot.
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