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JAOG

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Everything posted by JAOG

  1. Hello all. Item: Lishen LiFePO4 272Ah cells, 16 available. Age: New. Price: Preferably sold in sets of 4. R2400 per cell for 7 or less, R2300 for 15 or less, R2200 for 16. Payment Method Accepted: EFT Warranty: 5 year international, 1 week swap out guarantee with me. Packaging: Secure, boxes with foam cut for individual cells. Condition: New, A-grade. Location: Lephalale, Limpopo. Reason: Imported the extra cells to help me cover import and shipping costs Shipping: Yes, TCG depot to depot, R250 per 4 cells. Or R400 in Pretoria. Collection: Can be arranged, contact me. Link: https://www.takealot.com/lithtech-272ah-3-2v-lifepo4-prismatic-cell/PLID71500331 New, grade A cells, purchased from Shenzhen Basen Technology. Includes 2 x stud terminals, 2 x nuts and 1 x nickel plated copper busbars per cell. 3.2V Nominal. Minimum 272Ah capacity. 1C Max continuous discharge. 3500+ cycle life. Detailed specification sheet to be added in the thread below. Safely packaged. Please contact me for delivery arrangements, R400 for delivery in Pretoria. Otherwise R250 per 4 to your closest The Courier Guy depot. P.S. These are new products, but are sold with admin permission as a once-off, as I imported the extra cells to help me cover import and shipping costs.
  2. I wouldn't mind if they build these in Silverton: I hear you though, it all depends on what the execs decide though, there are some good signs that at least some of them are interested in the future (https://media.ford.com/content/fordmedia/fna/us/en/news/2021/02/02/ford-expand-south-african-manufacturing.html) the KZN fiasco and Toyota aside. I worry more about Eskom, they have already priced themselves out of the market, everyone from your local everyday Andy to the mining houses are jumping on self generation, cutting out the need for the Eskom generation side. Typically also much more distributed and closer to the point of consumption, largely cutting out the need for the Eskom transmission side. They screech baseload, but with the SWBs and specifically utility scale storage as you mentioned, I struggle to see how Eskom will compete as a business in the (very) near future, I believe they simply missed the renewable bus and I hope the communists in their infinite non-wisdom stop throwing our money at the sinking ship in time.
  3. Ah maybe I misunderstood, are we listing problems in SA, in that case my typing skills are not capable to keep up with my ramblings At least it keeps it interesting, we do not have to go looking for problems to keep ourselves busy with like the yanks.
  4. Those Joule details would be cool to hear Also not sold on Eskom and large scale nuclear, if they can't even manage to purge hydrogen from a generator It is exactly something like that which you trust should be well covered by comprehensive, fail safe and foolproof procedures... exactly the type of procedures which are crucial for the safe operation of a nuclear plant.
  5. Currently ICE is still winning though, everyone is promising BEVs, but as far as I can tell our options are currently i3 or i-Pace, maybe a secondhand Leaf if you really look hard? You can drive many, many kilometers in a Fiesta before you get to R700k (not even mentioning R2mil) and that excludes any battery replacement costs for the i3. That is what I mean by supply and demand. Once something like a VW ID3 reaches sub R450k ish (inflation and car prices ballooning like they are), then BEVs would be in business in SA, currently we have little options and they make little sense.
  6. Nice topic Sarel. My 2c for what it's worth. I agree nuclear is a minor safety concern if done properly, coal kills many people in this country every year directly and indirectly. My greatest concern with nuclear is the waste, the amount generated might seem small, but on utility scales the quantities of radioactive waste become scary, especially considering the unfathomable timescales involved. There are possible solutions for long term waste storage "Into Eternity" (https://en.wikipedia.org/wiki/Into_Eternity_(film)) is a good record of the Finnish proposed solution. It would be interesting to see the comparative cost per energy unit if a long term waste storage solution such as this is factored in for nuclear. Now if we can get fusion going, then we will see an industrial revolution like no other before! With regards to the EV transition in Africa, I agree that we will definitely see change, how it will look and how fast is anyone's guess. I believe supply and demand will play a big role still, it is the same as we saw with renewables. Morals are one thing, but as soon as renewables became cheaper than fossils the rate of adoption picked up exponentially; I believe BEVs will follow a similar trend, but as long as total cost of ownership for ICE is lower, it will still dominate demand and supply. We would also be a bit screwed if we suddenly go to 100% BEVs in SA/Africa, vehicles use a lot of energy, energy which Eskom is currently not generating or capable of generating. 556 623 TJ x 79% x 98% = 119 705 GWh for on road transport in 2016 in SA covered by petroleum products. Let us say an ICE is 20% efficient and a BEV is 70% efficient and we want to convert 90% of on road transport to BEVs. So 90% x 119 705 GWh / (70/20) = 30 781 GWh of electrical energy we would need. To cover this from a coal source with current Eskom availability of 60.8% that gives us 365 x 24 x 60.8% = 5326 hours per year so 30 781 GWh / 5326 = 5.8 GWe of capacity required, that is another 1.2 Medupis or Kusiles to cover 90% of 50% of the countries petroleum consumption. For solar PV, we would have around 365 x 6 x 90% = 1971 hours per year so around 15.62 GWe of solar PV required, that is another 16 REIPPPP bid window 5s! In other words we would need a lot more electrical production to cover transport, and that is only in SA, generally the rest of Africa is still much more reliant on the dinosaur algae. Now an interesting opportunity is if we can successfully utilize the BEVs for grid connected storage. With 90 kWh batteries becoming common in BEVs it would be very powerful if we have a few million individuals hooking their vehicles to the grid when not used for transport. I believe the UK has a smarter form of billing in certain parts where this can actually earn you money when feeding in from your storage during higher load times and then recharging during lower load periods.
  7. Unfortunately not yet too broad in SA although we are getting there. Specifically PV solar, storage and integration.
  8. Hello all. I recently started in the renewable energy industry and I am looking forward to contribute and learn from the people on the forum. Cheers.
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