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  3. Analysis for the full year of 2020 Total Production: 12.882 MWh Total Consumption: 12.931 MWh Highest Production Day: 59.3 kWh on 11th November Lowest Production Day: 1.9 kWh on 26th July Daily Averages - Production: 35.2 kWh Consumption: 35.3 kWh Own Consumption: 16.6 kWh Export: 18.6 kWh Import: 18.7 kWh Cost: $1.88 Yield: 4.1 kWh/kW
  4. Analysis for December 2020 Daily Averages - Production: 36.0 kWh Consumption: 34.7 kWh Own Consumption: 18.0 kWh Export: 18.0 kWh Import: 16.7 kWh Cost: $1.71 Yield: 4.2 kWh/kW December was a pretty cruddy month weather-wise, with only 90% of predicted production, 1,115 kWh against a predicted 1241 kWh. The best day was December 7th with 58.3 kWh produced. The worst day was December 19th with just 11.1 kWh produced.
  5. Analysis for November 2020 Daily Averages - Production: 44.5 kWh Consumption: 37.6 kWh Own Consumption: 20.6 kWh Export: 23.9 kWh Import: 17.0 kWh Cost: $0.23 Yield: 5.2 kWh/kW November was 13% better than predicted, with production of 1,336 kWh against a predicted 1187 kWh. The best day was November 11th with 59.3 kWh produced, our second best day since install. The worst day was November 5th with just 6.7 kWh produced. In November we
  6. We have just passed our first year since our system was hooked up. The vital stats are: Total Solar Production: 12.96 MWh Total Household Consumption: 12.66 MWh Energy Exported to Grid: 6.96 MWh Energy Imported from Grid: 6.66 MWh Total value of power produced: $2,766 Highest 5-minute output: 8.35 kW (14 October) Highest daily production: 60.604 kWh (28 December) Highest daily consumption: 90.427 kWh (28 November, the last day of the first year, which was a stinking hot day, and the longest we've ever run the air-con) Highest daily exp
  7. Our system has been in for about 1 week and I've been somewhat glued to the fronius app pondering matters of consumption and production. eg. What the hell are those spikes, what's that ~400w baseline consumption We have an 8kW system but 5kW export cap so I've been looking times of excess production and thinking about what consumers I can move to make the most of it.. It's almost reverse consumption anxiety because it's annoying leaving kW on the table so there's times I want to consume more just to see the system hit it's 8kW potential. My mrs on the o
  8. I think you're right. A home network upgrade is on the cards so I'll run a cable. Thanks for the tip and vid. I checked and it was already ON. The logging does seems better now than the first few days. I haven't noticed any big delays (several hours) in history updating recently, but that might be because I'm not looking at as often now the novelty has worn off a little.
  9. @manchu I'd suspect WiFi connection reliability. I never count on wifi, and always run a cable if possible. My Fronius is hard wired, and I never have issues (unless I'm fiddling, which I'm prone to). Another thing to make sure of is that Night Mode is set to 'ON' in your inverter. If you have a Fronius Smart Meter, you MUST have night mode enabled so your logging works correctly. I've made a little video for you here on how to do it. Cheers, Jason.
  10. I had a system installed this week with a Fronius Primo 8.2 & smart meter and am having trouble with the data logging. Day 1. system online ~midday. Installer hadn't set up my viewing permission so I didn't check data at all. Day 2. Logs fine from start of Day 1 to ~7am day 2 but then stopped logging until ~4pm. At 4pm both the website and app accurately updated the missing 7am to 4pm data and continued to log fine to end of day. Day 3. Logged fine from midnight to ~7am then stopped logging, until ~1:30pm, at which time the website updated but data w
  11. 10.3kW in panels. 28 x 370w Jinko. Yes. To be honest I didn't pay much attention to the export limit but now I'm witnessing the un-tapped capacity it's a bit annoying and has me wondering if I've over capitalized on the system. It's certainly true for peak production times if I can't consume the excess, but there'll be good benefits other times so i'm fairly content. My system was showing ~5kW export from ~8am to 4pm yesterday (56kWh for the day), and no problems producing the full 8kW if I switched AC or another load on to make up the difference
  12. Good on you Manchu. How many kW of panels did you end up going with? The Fronius Primo inverters are good, I have the 8.2kW like you, with 8.58kW of panels. Has the installer set it up for 5kW export limit? Luckily here we don’t have to do that, so with the weather lately I’ve been exporting over 7kW peak to the grid most days, with some over 8kW. That Origin plan looks pretty good. A 15c FIT is about the best you can get at the moment, I think you’ do well. Cheers, Jason.
  13. Updating this thread as my system went in yesterday. A whole bunch of the Jinko 370W panels some optimisers for one section and an 8kW Fronius inverter. I didn't end up contacting your installer @Marc as I'd pretty much decided to go through my cousins mate/local installer if I got a good vibe and a price reasonably close to 'cheap' upstart mob, which I did. He squeezed my install in very soon after VIC lockdown eased (others I know who ordered elsewhere before me are still being told a few weeks), and did a great job from what I can tell. I'm limited to 5kW export d
  14. Well my first year is almost up, and Origin have decided that my 21c feed-in tarrif won't continue. They don't appear to offer any more than 12c to anyone any more. I've run my spreadsheet over all the offers I can find, and staying with Origin seems to be my best option. My new electricity rates will be as follows: 55c/kWh Peak 25c/kWh Shoulder 15c/kWh Off-peak The new contract with Origin will give me a 16c/kWh feed-in tarrif. So now I know that my cheapest power is 15c/kWh, which is during the Off-Peak period. Power from my own solar producti
  15. BYD has a nice feature with their new batteries where the battery is modular so you can add more modules later to increase battery size (although inverters will generally require a certain minimum number of modules to get the required power input). Could also make repairs easier as a faulty module could just be swapped out. BYD - https://www.bydbatterybox.com/
  16. This week we are increasing our rooftop PV from 4.5kW to 10kW, mostly to reduce the load on the battery in winter and also to dump excess generation into the car during the day. We have a 17kWh lead-acid gel battery but the load on it was excessive with our current generation/use. Hopefully that'll change with increased generation capacity. We mainly have the battery to guarantee power for electric roof sprinkler pump, we haven't been able to draw more than 3kWh without the battery overheating
  17. I agree with everything you say @Tezza, however if you want solid figures, you have to use guaranteed quantities, which is why I used the warranted throughput. 70Mwh is a bit of a stretch, pretty much double the warranted throughput. If it has degraded to 80% after ten years (and 37Mwh throughput), it would take something like thirty years to reach 70Mwh, by which time something else will have blown up long ago. I suspect the break-even point is somewhere between, like 15-20 years, in a full charge-discharge cycle per day installation, which is probably about the same time the
  18. That may be true in the city but my main motivation for getting one now is that the numerous blackouts we get in storm season are a pain in the a*** and cost me money (as my office is at home). Happy to pay a premium to avoid those. I think this logic is a bit flawed. Like anything a battery is not going to get to the warranted life and then just fail. If they guarantee 37Mwh then it is likely that the expected life is a fair bit beyond that (as they don't want to replace more than a small portion). I know capacity will be lower at the end of that period (maybe 80% of new) but it w
  19. By the way pricing as supplied to me was: 5.0kWh 48V WITH 5kw Sungrow Hybrid Inverter (single phase) for $6500 8.5kWh 48V with 5kW Sungrow Hybrid inverter (Single phase) for $10500 15kWh 384V with 10kW Solax Hybrid inverter (3 phase) for $18500 Price for 15kWh without inverter was approx $14500 All claim 50,000 cycles with 25 year warranty and 99% depth discharge and operating temperature range of -20 to +80c 5kWh weighs 65kg, 8.5kWh is 97kg and 15kWh is 120kg
  20. I stumbled across them as well and have been trying to get more information out of the company. They are claiming that the "battery" is currently undergoing the approval process and they expect it to be available for purchase around March next year. I am actually in the market for a home battery and the specs and price on these are very attractive but I am somewhat doubtful as I can't find any evidence that anyone else it the world is doing this and the specs don't seem to add up with what I understand of Graphene supercapacitors. In particular the weight of the product is similar to we
  21. Analysis for October 2020 Daily Averages - Production: 39.1 kWh Consumption: 33.6 kWh Own Consumption: 17.6 kWh Export: 21.5 kWh Import: 16.0 kWh Cost: - $0.21 (ie. earned $0.21 per day) Yield: 4.6 kWh/kW October was almost exactly as predicted, with production of 1,211 kWh against a predicted 1223 kWh. The best day was October 21st with 57.7 kWh produced, our third best day since install. The worst day was October 25th with just 7.2 kWh produced. In October we had 20 'Green Da
  22. I have been researching this subject and have found this video that expertly explains all facets of super capacitors and modern applications The new technology is evolving Here is the video
  23. Hmm, I'm dubious. From my research (albeit not recent) capacitors are megawatts for milliseconds, batteries are kW for hours. Seems like snake oil to me. Very light on detail on the site. I remember watching a tear down on youtube of another supposed super capacitor battery, turns out it was just filled with cheap lithium ion batteries. Now, I would love to be proven wrong, but yeah, I don't really buy it.
  24. A fairly simple way of gauging relative performance, day to day, or site to site etc, is kWh/kW. Simply divide the kWh produced by the kW of panels installed. So in your case of your average production, 28 / 6.6 = 4.24 kWh/kW over the period. Cheers, Jason.
  25. We had a few rain / cloudy periods in Brisbane during the first billing period Even then the system was generating close to 20 kWh or above if a little sun came for short periods
  26. An excellent result. Not sure about Brissy, but August and September were very good months for solar in Sydney. Cheers, Jason.
  27. Well the first 3 months went quick Regular monitoring gave me a good indication of how much power I’m generating Just a refresh I have a 6.6 kWh system x 5 Kw inverter x 20 Panels Highest daily generation was 39.8 kWh ( and it’s not summer yet ) with an average of approx 28 kWh I just received my first bill and I’m happy to report that it’s in credit Drum roll Credit $424.39 At this rate I will pay off the system in no time System cost was $3500
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