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  1. D

    Inverter size when maximum system is 11.56 kW (34 panels)

    Your DC to AC ratio is less than 1 so your system will never clip. Although your inverter may not be operating at top efficency with the wattage your panels supply the difference is likely negligible. The advantage for you is that you can add more panels without needing a new inverter.
  2. D

    Inverter size when maximum system is 11.56 kW (34 panels)

    It depends on your panels and your layout. I have 100% unobstructed south facing panels and my 13.2kW system is clipping significantly (for over 3 hours a day) even now in February with a 11.4 kW Solaredge inverter. If you have shaded or multiple panel orientations then your system may not clip...
  3. D

    SolarEdge Monitoring

    The Solaredge panel detail is a little buggy. When some of the panels are covered the uncovered ones will show impossible output, mine will show more than 450 watts (not watt hours) on 330 watt panels. The overall output seems correct though.
  4. D

    SolarEdge Monitoring

    It's KWh not KW, so I don't think you're maxing out the inverter. Tell us about the system and what data you're showing... Do you have a readout for the day by 15 min interval?
  5. D

    Years to breakeven..? PA Solar worth it?

    My electricity costs are twice yours, and I get SRECs which halves the payback period, and I calculate about 3.5 years payback with a slightly smaller system, so your calculations seem quite accurate to me. I would add that the Tesla estimates are typically conservative and you may want to...
  6. D

    Minimum voltage for Solaredge string with optimizers?

    Answering my own question... it takes 6 panels. Found out by trial and error today.
  7. D

    Do you wash your panels? If so, how?

    I can tell you that I do notice about a 5% difference in production when the panels get dirty on their bottom edge. I clean them myself once a year with an extension pole from the roof (after pollen season on an overcast day). Once a year is enough for me. It takes me about an hour for 40 panels.
  8. D

    Minimum voltage for Solaredge string with optimizers?

    I'm coming around rather rapidly to agreeing with the posts stating that optimizers are useless. I was able to clear off only 4 of 9 330 watt panels on one of my 3 strings to my 11.4 KW Solaredge inverter yesterday, completely unobstructed these 4 panels in full sun produced a whopping 8 watts...
  9. D

    Emergency braking activated today, first time in 2+ years

    I'm wondering if this is a software version bug as I was quite far away from a hard braking SUV in front of me and the braking was way too hard and exaggerated. My 4 year old daughter in the car seat did NOT like the experience! Had anybody been behind me I could easily have been rear ended...
  10. D

    Winter handling Subaru vs dual-motor model Y

    Oh I see what you're saying. I don't believe that's true for the STI, from Subaru's website: "The Driver’s Control Centre Differential (DCCD) allows the centre differential locking of the WRX STI to be dialed in and adjust its handling. It adjusts both an electromagnetic multi-plate transfer...
  11. D

    When do you think Powerwall Gen 3 comes out?

    I have 2 Powerwalls, and I must admit 27 kWh isn't as much as I thought it would be. It works fine as long as there is no A/C use or cloudy skies, but I think doubling or better yet tripling the capacity of a Powerwall would be really useful. This is why I wish Tesla cars could feed back into...
  12. D

    Winter handling Subaru vs dual-motor model Y

    Not sure I see what you're disagreeing about . The Evo 9 had an electronically activated hydraulically controlled clutchpack in the center diff (I have worked on it in person, it's in the transfer case). The car would let you adjust how fast the diff would lock. Later models had AYC which is...
  13. D

    Winter handling Subaru vs dual-motor model Y

    I have driven AWD vehicles for 30 years, here is my ranking of all the cars I've driven for snow traction (all with Winter tires): 1) Mitsubishi Evo 9 - Last of the true mechanical AWD systems, mechanical LSD front and rear, electronic variable locking center. 100% predictable, completely...
  14. D

    New install power questions.

    I can tell you that my 40 330 watt panel system tops out at 9kW this time of year (Northern NJ) with all South facing panels. My peaks look similarly clipped to yours. Your daily production of 18 kWh can't be right though, you should be making way more than that on a sunny day. My guess is only...
  15. D

    Rear Axle Clicking

    That's what my bad bearing sounded like but it was on a Model 3. I was surprised how much corrosion was on the hub after only 10K miles, I took pics of old/new sides.
  16. D

    16.32KW System Requires 2 Inverters?

    I can tell you that my Solaredge 11.4 KW inverter has never exceeded its rated output. It maxes out at about 11.3.
  17. D

    Mysterious text saying I have powerwall service scheduled....

    Someone should be there because if the solar doesn't shut down after the change bad things are going to happen.
  18. D

    Mysterious text saying I have powerwall service scheduled....

    The gateway / Powerwall raises the frequency of the A/C current to shut off the solar when the batteries in the Powerwall get full. You want the lowest frequency increase possible that shuts off your solar so that the rest of the electronics and motors in your home function as intended. It is...
  19. D

    What level of output should i be seeing..

    I have 100% south facing panels (40 of them, 13.2KW) here in Northern NJ, with a fairly flat roof so my production dips significantly around this time of year (December production is usually 25% that of a Summer month). I still hit 10KW close to noon. Last year we had a pure sunny day on Winter...
  20. D

    Never drive away without the key card!

    Haven't seen it mentioned, I use the "Pin to Drive" feature on the car. Easy access with the phone, no driving the car away unless you know the pin. I also have the keyring because inevitably I need to move the car when my phone is charging somewhere in the house...
  21. D

    Powerwalls don't turn on with Power Outage

    Sadly I don't have too much choice turning them off. I still have power issues from the utility where the voltage drops low enough that the Powerwalls get confused and cycle on and off repeatedly and try to match the low line voltage. This happens quite frequently. PSE&G is supposed to upgrade...
  22. D

    Powerwalls don't turn on with Power Outage

    I was keeping the Powerwalls switched off as I only plan on using them during a power outage and don't need instant switchover. FYI this is a bad idea. The gateway needs a power source when power fails, and without a functioning gateway the Powerwalls won't turn on. I saw some posts about...
  23. D

    The 'Fool' in FSD?

    As an avid cyclist, I feel obliged to point out one of the victims of FSD pursuits and the disgusting spin on the death by people like the police chief Sylvia Moir who called the accident unavoidable without looking at the evidence: Death of Elaine Herzberg - Wikipedia
  24. D

    FSD Price Increase by $2,000 on 26 OCT

    I like actually driving my car. The last thing I want to do in it is talk on the phone or sleep, there are way better places to do that. I also don't want other people in my car, even the back seat (that includes my children but hey they're family and I can't seem to give them away). I've been...
  25. D

    Who needs a roadster when you have model s plaid?

    I drove Route 130 in a rental, completely useless because there were cops every mile or so. I did however have an Audi on the Autobahn and that was much more entertaining!
  26. D

    Who needs a roadster when you have model s plaid?

    The model S is a grand tourer, which is practical but it isn't a sports car. For purists a sports car has two doors/seats, is light weight and handles very well, none of which qualify any of the current Tesla models (I think the Model 3 almost gets there in handling but not quite). Me I would...
  27. D

    Comparing solar quotes and wondering about installation experience

    I'm not sure whether string fault protection is as good as panel protection. I do remember you posted about this optimizer topic previously: Optimizers... what are they good for? so I'll just leave it at that.
  28. D

    Comparing solar quotes and wondering about installation experience

    I don't know if you're right or wrong on either one of these, but I'd bet against you based on my experience with Chinese manufacturing and articles like this: Backsheets are shortening some solar project lifespans Optimizers aren't just about production, they offer a safety shutdown feature...
  29. D

    Comparing solar quotes and wondering about installation experience

    My system has been online for 18 months, it's amazing how much the solar install environment has changed in that time. Tesla was unable to get started on my system in a timely manner and didn't have a price advantage at that time like it does now. They did have the cheapest Powerwall quote so I...
  30. D

    Rear Axle Clicking

    In my case (Model 3) it turned out to be the hub bearing. Tesla will replace the whole hub. My guess is the axles are fine and they have a bunch of bad bearings out there. A CV joint shouldn't go bad that quick (well neither should a bearing I guess lol)
  31. D

    Total braking system failure!!!

    Based on that picture I bet that something like a gear broke and got in the way of the piston being able to move. Let's hope that's a rare occurrence.
  32. D

    Total braking system failure!!!

    I've had master cyclinders lock up on me on old cars, but the more typical issue is leakage. Based on the OP's account I think it is likely that the master did fail somehow. I'm sure it's the first thing they'll replace.
  33. D

    Model 3 LR Front Axle Clicking - Warranty

    Front axle click, sounds like a torque wrench, clicked especially when making turns or going over bumps. Tesla Service tightened and lubricated all the hubs, no improvement. After the fourth try they replaced the half shaft, no improvement. They then replaced the front hub... problem fixed. I'm...
  34. D

    How does SRECtrade production reporting work?

    I have a separate meter on my solar system that measures exact solar production. The Powerwall and Solaredge inverter production numbers are slightly lower than the meter, but not by much. I report actual production for my SRECs here in NJ
  35. D

    PW drainage and ability to charge from the Grid questions - new install

    You can switch off the Powerwall for longer durations. I just turned mine on after a month because I had low voltage on the line coming from the grid and it would cause problems with the Powerwalls. It was charged to 98% a month ago and when I turned it on today it was at...98%
  36. D

    Rear Axle Clicking

    Three trips to Tesla for the same problem, I really also would like information on this, specifically torque values for the nut, do you need to pull the axle from the hub and if so do you need to remove anything like the sway bars to be able to pull the axle from the hub? This is also for a Model 3.
  37. D

    Are solar panels really worth it?

    Although I do care about the environment, my choice of going solar was also made for financial reasons. Here in NJ, including delivery charges the rate is about 22 cents/KW, and the SREC payback is about the same per KW. I simply took the cost of my solar system (after federal rebates) and...
  38. D

    16.32KW System Requires 2 Inverters?

    I'm assuming your system falls into the latter category. Also the panel quality obviously matters. I'm overpaneled by about 1.15 and I clip for about 8 months a year on sunny days. Note I'm clipping for 3 hours in the graph below: The graphs shown on websites for overpaneling are also...
  39. D

    16.32KW System Requires 2 Inverters?

    Once you go much above a 1.3 ratio the system will clip pretty much the entire day. The ramp up gets steeper and steeper as you add more panels. Granted this only happens on sunny days in Spring/Summer months, but that's when you make most of your solar power. And it does assume all South...
  40. D

    16.32KW System Requires 2 Inverters?

    Isn't this showing the exact opposite? It shows how little difference the extra panels make for the time it is NOT clipping, since you make the same power when it's clipping regardless. The correct calculation would be to compare your 10KW with 15KW panels system to a 15KW system with 15KW...
  41. D

    16.32KW System Requires 2 Inverters?

    I'd just reiterate that it's not a great idea to overpanel too much unless you have odd shading or orientation issues. If your panels are producing 15 KW and you only have a 10KW inverter you'll experience clipping, meaning that the excess energy is lost and you're only producing 10KW. You can't...
  42. D

    Realistic expectations

    By any chance is the system using optimizers? If you have a Solaredge inverter and optimizers you can get panel by panel production information. I can detect the amount of shading my chimney throws on late afternoons that's how sensitive the info is. It will also give you more accurate (but...
  43. D

    Realistic expectations

    It would tell you right away if you shut off an inverter. Check the meter from the system, it will tell you exactly how much you're making. My guess is the system is producing well but the app is wrong.
  44. D

    Uses for the Frunk

    My wife keeps her Bed Bath and Beyond coupons in the frunk... trust me there is no room for anything else!
  45. D

    Separate company for Solar -vs- Powerwall

    I don't see why the lease holders wouldn't allow you to use the panels for the Powerwall. The panels will produce more power than before because without the Powerwall the system would be off. But obviously that's up to them. Leasing panels seems like a bad idea, financing them makes a little...
  46. D

    Separate company for Solar -vs- Powerwall

    You can run completely off grid with solar and Powerwalls assuming they are properly size matched, meaning the solar doesn't overrun the charging rate of the Powerwalls. The gateway will shut down the solar when the Powerwalls get full and turn the solar back on when they start to deplete...
  47. D

    Florida 1:1 net metering under PSC review, 75% reduction in value of solar

    Maybe. But then again perovskite be the cold fusion power of the 1980s or the algae biofuel of the 2000s... Stability seems to be a major problem that may not be solvable.
  48. D

    Florida 1:1 net metering under PSC review, 75% reduction in value of solar

    All the more reason for Tesla to implement bidirectional charging on their cars. I can personally see a future where there are no more power lines, just highly efficient solar panels coupled to storage systems in houses and cars. Really that future would be possible already had Tesla made...
  49. D

    Inverter Replaced - Power Output Throttled?

    Maybe the strings aren't properly connected? Not sure that would do it but it seems like if one string was only connected it might look something like that?
  50. D

    How many panels to charge Model Y?

    I was mostly referring to turning on the A/C or heater before or after driving. If you spend any time at all in your car making calls or texting (as you should so you don't do it while driving) or even playing games this can be a significant amount of energy. The Tesla screen value doesn't...