Sun trackers track the suns position throughout the day. Since about a year one string reported hardly any yield. Was I originally on the right track Mark going with Sunpower and Enphase or should I be looking at another set up. They attempt to explicitly exclude labor (sic) as an element of liability. When an optimiser fails does it take out the panel or just limit the panels output performance and if so by how much. Optimiser failures are very common. Doing so will give us 7,883 kWh annually. Is a string system sufficient and what would your preference be - 1. After having read your review I did a lot more diving. The other problem is that the system keeps shutting down anywhere from 3 to 10 times a day. Could Call of Duty doom the Activision Blizzard deal? - Protocol I try to find out if my supplier has designed it right. (SolarEdges lawyers commented on this section stating that I wrongly imply that a string of 6 or less [sic] panels is permissible in accordance with SolarEdges installation guidelines. I have access to the individual production array, so that's not the problem. This is the expensive part as distances can be long. To briefly explain how the efficiency works: When energy goes from the panel into the inverter, some energy is lost in the conversion of turning it into AC energy, storing it and shooting it back out to get used. You should seek an expert in manufacturing and quality control issues to prove your point. I can't even get anyone to take over the meintenance or the account to see what is wrong with them. Thanks for the informative article. Ok, yes that makes sense. P300 optimizers. He believes that, with a bit of help, a well-informed decision is rewarding to make, it saves you money, and it is a win-win for all - the planet included. One that dropped out got back online when the weather got dryer before failing forever. But they have since told me that didnt tell me that. Google tells me in England it can fluctuate from 216v to 253v. Thanks for the blog and opportunity to ask questions. Thats their fault, they should notice installers that this can occur. They outsource their manufacturing to other companies in China (by Flextronics), Hungary and Romania. Always good to hear both sides. I just wish SE would allow this for everyone using SE5000H or lower. The updated blog is currently with SolarEdge's lawyers after which it will be reposted on this page. Hi Teik. We have had no Comms since 2016. In part one, I explain the SolarEdge inverter theoretical advantages. SolarEdge Technologies, Inc. is a major manufacturer and provider of solar inverters, power optimiser, and solar panels. And batteries are almost always not worth it even if you confuse the maths with VPP figures. We evaluated the feasibility of solar panels in a residential setting. The sunpower does 300 watt, the same orientation HIT does 150 and the other orientation HIT does 75 watts. Generally my output is a sawtooth pattern on any given sunny day. Hi Susan, Thanks. Whats going on? You may want a SolarEdge system, but it might not be best for you. Standard string inverters have two MPPTs. Cost for system, $30,000 for 5kw + 1 battery when Tesla offers system plus 3 power walls for $32k. We worked out the production due to blocking to between $6 and $9 per quarter. First, if you are limited by space you would want to go a more efficient panel (or a higher wattage panel that is the same size). Enphase is a good option. 6100 x 0.8 = 4880. Fortunately, SolarEdge trusts MC Electricals ability to design correctly because they gave us a waiver to install up to 25 panels in a string. So a single instance of optimiser failure, or pannel shading shouldn't take the whole system down. This is why LG solar panels state in their warranty that panels are not covered if installed in the shade UNLESS the panels are optimised. The installers keep troubleshooting the system and can not explain why we are not supplying electricity to even power our house. Hi KK, That's a new one. Check out how home solar + Powerwall storage is working for one of our awesome Shine Tribe members in his review! Climatebiz is reader-supported. This experience set the company on track as one of the pioneers in residential hybrid Solar Edge have agreed to replace the Inverter, however now I'm concerned about S/E in the long term, after reading your article. It takes some time. SolarEdge focuses mainly on high quality solar inverters. If so, then they are really not saying anything since they already allow up to 25 per string. So, 4 failures out of 33 optimizers. How does E18 compare to LG NeON panel which also has 25 years product warranty and similar dimension? Thanks Mate. Notice that it is only for systems 5000W or below. In the mean time Ill discuss with my installer. So yeh, wholesalers should stock up and we should all more often use 404's for $5 more. I am disappointed that it was my frequent app checking that highlighted a loss of production and not an email alert from my installer or SE. We chose to go with SolarEdge for their product capabilities, tech support and warranties as we had previously had poor experiences with other hybrid inverters. SolarEdge is the most efficient inverter system in the industry. (see the amended blog, I am told Gen 4 was never sold or marketed), Hi Mark. The only real rival they have are Enphase with their microinverters who also offer long warranties, all-in-one system and full visibility monitoring. The datasheet, and the extended training not includes this information, what in my oppinion is highly important. Who knows. Do you have any suggestions. Now lets get down to the computations and answer the most critical question of all. You would be my first choice! I probably should add in the number of optimisers we have installed. System was only installed in late 2017 and last inverter replaced 12 months ago. Hope you can find someone, where in the USA do you live? Again, this was proven correct by my original testing. 2015-2018? I know the inverter got replaced). Your privacy is important to us. Our three-phase SolarEdge inverters also operate at 750volts. I've had a 70% failure rate in just 8 years. Hi Frank, Thanks. The only real rival they have are. You should see it on your solar edge monitoring graphs if it exactly tracking. Oh, my SE inverter had to be replaced during the first week after installation. My panels have an Isc of 9.86A. Can I really expect SE to monitor my system, when I didnt hear a word during 5-weeks of no data? They cant even get a link to attend a training seminar application to work so what hope have you got to to get a quality reliable product. They have created a unique product in the market by giving you an all-in-one style system with full visibility. On average, the best solar inverter warranties are around 10 years tops Some only really offer 5 year warranties. He is eager to deliver his analyses in a comical fashion while providing you with the right amount of scientific information. Would love to, but carrying those panels on a plane is a bit of a pain :). It performed very well in the first year. If so, your inverter is humming along and producing electricity. What I learned is when you design SolarEdge, you must take attention on the minimum optimizer rule. We also give our customers full access (not admin) and don't do installs without the modbus Meter(s). They sent me the Optimiser on 22nd January but apparently they are unable to agree labour and scaffolding costs with the company they have chosen to fit it. About film capacitors vs electrolytic capacitors, the industry, i mean, the whole industry working with dc-dc converters agree that film capacitors are the best choice for these kind of applications including high temperature applications. I am adding three more panels and will connect them to the sting that cuts out and see if this way i can have two stings working and maintaining a high enough voltage. The system is 6 yrs old with a 12 yr warranty , the company that it was purchased from no longer exists and the installer has retired with a bad back. On the first day of install the production was great. Get the latest news and analysis in the stock market today, including national and world stock market news, business news, financial news and more It is correct that it needs to be installed in strings of 8 minimum -but I questioned SolarEdge about this recently. Not only is the i3 crafted with materials up to 95% recyclable, but it also comes with a battery that converts into energy storage. Excellent article and thank you so much for sharing your findings. It is a pity when a companys response is to send the lawyer team. Perhaps you recall that one of the advantages of sun trackers is sustained high solar energy production all throughout the day. Massive kudos Mark. Technicians For Sustainability | Tucson Solar & Battery Installation I am reasonably happy with everything but realize that this is still "not for everyone." I had 3 optimizers fail while I was in out of the country for 7 weeks in July (90 days after installation). In your case, I don't think you have much to be concerned about. If I use enphase I guess I am limited to another total 5kw, whereas with an string inverter I can put in a 5kw inverter and clip it. thx again for posting this blog and i hope the solaredge legal team get off your back :) regards ronnie. We stopped installing SolarEdge in December 2018. I'm guessing you didnt read the blog if you are considering SolarEdge! Read my blog on Tigo if you haven't looked into that already. All of our SolarEdge projects were installed within a couple of years so we did not have time to see their problems. On the occasion we do get failures SolarEdge have been very quick to respond and in most cases we have the issues fixed in 72 hours. Hi MC, We have installed over 20,000 optimizers across 1100 systems and our failure rate is considerably lower than the rate you report (about 5 times less). If you have shade, just add Tigo! Add one more SE inverter replacement to your total Mark. Adjacent is one of the worst examples. I am a SW/embedded HW engineer and this failure rate and that reported by others has me very worried now. While SolarEdge currently has an agreement with installers to pay a small labour component to replace faulty optimisers, their SolarEdge warranty explicitly states otherwise. I can post those comments if I get permission. and those types of inverters, SolarEdge is way better but of course requires a bigger investment. We have had the second system put in just over 12 months. Get the total cost of the sun tracking solar panel system. Communication panel of the SE7k inverter sent 8x10 error code, AP wi-fi dropped the connection for SetApp. This is because your system has been designed and optimised for maximum energy output over a period of time. I believe it's very unusual - possibly a one-off. Infant mortality usually occursbecause of faulty components (like capacitors) and at the manufacturing process level rather than an inherent design fault. If you are considering moving and are looking for a fast ROI system, youd be better suited with something like Sungrows residential inverter with Longi HiMO4 solar panels. I have also had 8 optimised fail out of about 10 systems. A warranty aint worst shit if the company won't honor it. I wish you and your team installed into the ACT/Canberra area because I would have you installing at my place in a heart beat. We also had problems with the panels overheating before the 12 months and its demise. Edit, their lawyers deny SolarEdge have changed their tune or that they have a high optimiser failure rate. This will result in5,464 kWh of solar energy coming from the 3.5kW system annually. 2) As a law graduate (but not a practising lawyer) I studied their Limited Product Warranty statement. Great article - wish I had known this before I installed my system. It was replaced on July 3, 2018 and the second optimiser (not the replacement component but an opti on another panel) failed on July 4, 2018. I imagine that they will be fairly rare but would like to be proved wrong. Working SolarEdge lawyers pointed out that this situation is rare. SolarEdge optimisers is a product we were recommending for shaded situations. StreetInsider.com $230.03-0.7%: 89.86: $12.74 billion: which makes us believe the company had been working on the project for some time. I installed four Solaredge SE7600A-US inverters for a customer, that had bought his own system. Ive read about poly, mono, PERC, split cells, various wattages, sizes, even colours. I have had a solar system for nearly 4 years now and have had 3 replacement batteries and 2 replacement inverters ( Solaredge). I am just about to go to site and replace the third panel integrated optimizer at a site 3 years old with 20 optimizers. HD Wave has ushered in a greater failure rate, certainly for DOA units. Also there was one occasion when the inverter tripped, and I did not notice until I went to take a meter reading 3 weeks or so later. I have always felt that less is more, simplicity, when it comes to longevity and reliability. While I have written correspondence with SolarEdge about Generation 4 optimisers, their lawyers tell me that SolarEdge has never marketed, nor sold, a fourth generation of its product. These products may suit the European climate, but are they really suited to Australia? We know that a 5kW system produces 7,805 kWh of solar energy annually. I love the concept of optimizers, but I have to admit that I have been extremely disappointed by the implementation. You can easily hone in on string voltages to pick up small issues if you know how to. I am still paying the same electric bill that was before the system was installed. Top EV Stocks 2022 - MarketBeat Based on our previous article, we know that the typical cost of a solar panel in the United States is $2.7 per watt. Hi Wally, I should update my failure figures. He refused. I was so oblivious that I did not fix a power failure to the monitoring access point for a full 6 months; as inverter itself have no warning message I assumed system was putting out full power. I sell solar and am trying to figure out the truth about inverters. My face was 1 away from the inverter when it exploded. Unfortunately, in engineering, if you go from a centralised system do a distributed one with the same (per unit) reliability, the total incidence of failure increases. Faulty inverter? I still have not had a call or an email explaining where I may be inaccurate, except vague email comments. I suspect the new panel croak is due to a series of 41 degree days in California recently, but thats California! Ill leave the solar installers to chew over that little mathematical nugget. My installer is waiting for solar edge to confirm that it is the optimiser that has failed. And this happens every 3 to 5 days, so at this point I'm extyremely pissed with Solar Edge. But nobody would guarantee you maximum instantaneous output (kW). Solar Edge says that perhaps an optimizer failed or there is a wiring problem (the customer support rep says he doesn't envy my situation!). Some guys have contacted me since I posted this saying they have had significant issues with claiming warranties. Probably not. If it is shutting off 3 times a day, it's likely either because you have high grid voltage, (above 255v?) Me and the rest of the SolarEdge Australia team will be happy to discuss with anyone points raised here and comment. With easy monitoring of your battery level, driving conditions, and surrounding weather forecast on the mobile app, you can expect excellent performance on the open road.
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