TheoG Posted December 13, 2022 Share Just now, taito said: I will only do the TV//decoder//WI FI //phone charging and 2 LED lights ,,not planning to connect any15amp plugs .. I have gas hob 👍 that would work perfectly. taito 1 Link to comment Share on other sites More sharing options...
The Ouzo Posted December 13, 2022 Share 4 minutes ago, taito said: I will only do the TV//decoder//WI FI //phone charging and 2 LED lights ,,not planning to connect any15amp plugs .. I have gas hob I'm running a 2kw inverter, powering basically similar to you. Works 100% fine. H Havent checked battery state with everything on after a 4 hour load shed, but from what I've seen with 2 hours it will handle 4 hours without getting into dangerously low battery level territory. (i.e. will still be above 50%) TheoG and taito 2 Link to comment Share on other sites More sharing options...
Frosty Posted December 13, 2022 Share 37 minutes ago, TheoG said: I got 2 x 455W panels dedicated to the geyser, geyser temp is at 52 deg C without using any grid, more than happy with that. What’s the setup? PV through inverter to geyser element, or something different? Link to comment Share on other sites More sharing options...
TheoG Posted December 13, 2022 Share 5 minutes ago, Frosty said: What’s the setup? PV through inverter to geyser element, or something different? The 2 panels is connected to a "Geyser Wise" MPPT controller that feed a dual element in the geyser directly. The dual element can take Eishkom also, if you should need to supplement. Hence, its completely separate to my other panels/inverter/batteries. With some coordination who showers when 🙈, I don't consume any grid on the geyser. On a good son day it even max out at 75 C on the geyser temp. Edited December 13, 2022 by TheoG Frosty 1 Link to comment Share on other sites More sharing options...
ChrisF Posted December 13, 2022 Share 2 hours ago, taito said: I will only do the TV//decoder//WI FI //phone charging and 2 LED lights ,,not planning to connect any15amp plugs .. I have gas hob Okayyyyy .... some interesting feedback in the previous pages .... Lead acid VS Lithium ...... Each has its place. For the "short list" you have a lead acid with a typical Mecer box will do the trick at about R12k. ONE PROBLEM .... once you have power during a load shed MORE items gets plugged in ... SECOND PROBLEM .... with stage 4 loadshedding the system simply cant recharge fast enough .... Thus the battery dies prematurely, and the Lithium guys says: "I told you so..." For a lead acid system ... 1. Keep the load LOW !!! 2. DONT discharge past 50%, i.e. 12,1V (actually reduce load at 12,2V !!) 3. Use a PV panel and regulator to top up the battery during day time loadsheds ... After sunset - our 12V gel battery does a perfect job of driving the same list you have above. When the sun shines, the PV panel charges the battery and I can run all that plus my laptop while the battery remains FULL .... our battery only knows of loadshedding at night. SURE - Lithium is a premium product .... noting the following : 1. COST .... 2. You must CHECK if your equipment can actually charge the lithium battery !!!! You can kill a lithium with the wrong charge-profile !!! 3. Bigger loads, proper PV systems .... lithium is a no brainer (but not everybody has that cash available ...) Link to comment Share on other sites More sharing options...
ChrisF Posted December 13, 2022 Share 3 hours ago, The Ouzo said: I'm running a 2kw inverter, powering basically similar to you. Works 100% fine. H Havent checked battery state with everything on after a 4 hour load shed, but from what I've seen with 2 hours it will handle 4 hours without getting into dangerously low battery level territory. (i.e. will still be above 50%) word of caution .... Keep an eye on that battery when we have 3 to 4 loadsheds PER DAY .... the system simply can not recharge the battery before the next loadshed .... repeat this for a week or two and suddenly your battery is dangerously low ...... duur skoolgeld ! PS - this why I added the pv panel to my UPS system. TheoG 1 Link to comment Share on other sites More sharing options...
The Ouzo Posted December 13, 2022 Share 6 minutes ago, ChrisF said: word of caution .... Keep an eye on that battery when we have 3 to 4 loadsheds PER DAY .... the system simply can not recharge the battery before the next loadshed .... repeat this for a week or two and suddenly your battery is dangerously low ...... duur skoolgeld ! PS - this why I added the pv panel to my UPS system. We dont run everything for the full 4 hours anyway. Family has been instructed if there is loadshedding they can finish the show they are watching and then TV etc. goes off. Priority is the wifes "office" . The trolley we bought has the ability to add PV panels. I wont do that now with the current house though. ChrisF 1 Link to comment Share on other sites More sharing options...
-cK- Posted December 13, 2022 Share 7 minutes ago, ChrisF said: word of caution .... Keep an eye on that battery when we have 3 to 4 loadsheds PER DAY .... the system simply can not recharge the battery before the next loadshed .... repeat this for a week or two and suddenly your battery is dangerously low ...... duur skoolgeld ! PS - this why I added the pv panel to my UPS system. Yea with only one 5kW battery currently these 3 a day with at least one back to back outage is a pain to manage, need to constantly check my levels are high enough with this crappy weather to ensure there is always enough plus a bit of reserve. Thankfully only had to top up from the grid once on day 1 when we dropped to stage 5 and the time slot didn't allow for enough recharge of the PV as I would have restricted the battery usage if I had known. Requested a quote on second battery and more panels so patiently waiting now to upgrade. ChrisF 1 Link to comment Share on other sites More sharing options...
TheoG Posted December 14, 2022 Share 14 hours ago, -cK- said: Yea with only one 5kW battery currently these 3 a day with at least one back to back outage is a pain to manage, need to constantly check my levels are high enough with this crappy weather to ensure there is always enough plus a bit of reserve. Thankfully only had to top up from the grid once on day 1 when we dropped to stage 5 and the time slot didn't allow for enough recharge of the PV as I would have restricted the battery usage if I had known. Requested a quote on second battery and more panels so patiently waiting now to upgrade. I got 10.8 kWh batteries and thankfully so far I didn't need to use the grid to charge them yet. If the bad weather persist, it might be inevitable though ... 😞 mikkelz 1 Link to comment Share on other sites More sharing options...
tinmug Posted December 14, 2022 Share Now the fun starts: De Ruyter has resigned. 🙈🙉🙊 Schnavel, mikkelz and dave303e 3 Link to comment Share on other sites More sharing options...
M L Posted December 14, 2022 Share On 12/13/2022 at 12:31 PM, taito said: I just bought a 2400 Mecer inverter for the TV/Wifi etc.. Does it warrant spending R 12k on a lithuim battery versus 2 deep cycles at R 4700 for both You should be able to get a lithium for cheaper..bought mine for R7,500 a few months ago. Link to comment Share on other sites More sharing options...
M L Posted December 14, 2022 Share 1 hour ago, tinmug said: Now the fun starts: De Ruyter has resigned. 🙈🙉🙊 Saw that - HKGK TheoG 1 Link to comment Share on other sites More sharing options...
ChrisF Posted December 14, 2022 Share 2 hours ago, tinmug said: Now the fun starts: De Ruyter has resigned. 🙈🙉🙊 Andre walks end of March ... Jan Oberholtzer retires a few days later .... Link to comment Share on other sites More sharing options...
-cK- Posted December 15, 2022 Share 12 hours ago, ChrisF said: Andre walks end of March ... Jan Oberholtzer retires a few days later .... So that means I need to sort out my upgrade before then I guess...🤷♂️ Link to comment Share on other sites More sharing options...
dave303e Posted December 15, 2022 Share 1 hour ago, -cK- said: So that means I need to sort out my upgrade before then I guess...🤷♂️ had a 'dam we timed it perfect' moment last night... ChrisF 1 Link to comment Share on other sites More sharing options...
TheoG Posted December 15, 2022 Share 12 minutes ago, dave303e said: had a 'dam we timed it perfect' moment last night... Same here, my system is working sweetly, can even cope with about 3 bad weather days in a row. Edited December 15, 2022 by TheoG Frosty and dave303e 2 Link to comment Share on other sites More sharing options...
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