you request 5kW and Powercor says you can only export 2.5kW) Set a 'zero export' limit - i.e. Why my Power Limit is set to ON with the % whereas her Power Limit is set to OFF and she has been exporting. But it took him about another ten years to focus on it in a way that wasnt really stupid, Good Article. (Or at least it will be expensive to set up well. 0% In reality, the losses will be considerably less. I am a total newbie to this but I am unclear why export limiting is good? Weve seen a rapid growth in rooftop solar systems.With each installation, were facilitating rapid growth in the amount of solar capacity on our network. Unfortunately, the inverters parameters such as Export Limitation are all password protected, and so far I have been unable to even determine who knows this password. Reminder: In Australia, you are allowed to install 33% more panel capacity than the inverter capacity for example, a 10 kW inverter can have up to 13.33 kW of panels attached. And also is it worth installing solar with 0 kWh limit with self consumption around 20-30%( payback 6-7 years). If the transformer capacity is limited, you could install solar initially with a low export limit (eg 1 kW) and then have your export limit increased when the transformer was . But a sub optimally configured grid sometimes forces installers into implementing setting that are probably less than ideal if the high voltage events in the grid were just occasions where there is too much generation and they do want have all generators throttle back to allow some time for rebalancing supply and demand. Thats a furphy from go to whoa. There are lots of variations to this theme, however. House batteries should have the capability of being set to turn off when they are fully charged and then on towards the middle of the day. 207 0000009573 00000 n When a home is exported limited, all the power the solar inverter can produce is available for the home to use. I am a bit confused about export. The solar installer or customer must have sought and received pre-approval from us for the requested capacity of the generator. 5kW export limiter imposed on one inverter. Generation sources can be, but are not limited to solar, wind and batteries. ( hb```f``sd`c`edd@ A >hp`86s8::\ MNmOe0pYuR`i g G7@ $n@]A#&S_2.dx f Why on earth would I do that if I can help it. The good news is, even in a worst-case situation, the amount will be fairly minor. Talking of which, the fact often gets dropped under the table that neither batteries nor panels and inverters (being mechano-electronic devices) have a limited life span, and their efficiency deteriorates gradually after only a few years. . 0000039096 00000 n 0000029011 00000 n By the time he was eight, he was already focused on using the power of the sun to stop fossil fuel emissions destabilizing the climate. Similarly, which would be more detrimental to a fragile electricity grid, through power exporting; a 5kW inverter with no export limiting, or, a 10kW inverter, with export limiting set to 1kW? Unfortunately, the meter companies and inverter manufacturers cant get their shit together, and the utility meters refuse to talk to the inverters. An option is to take your pumps off-grid and run them independently off a separate off-grid solar system. (Note: it is possible to install a larger system, say 10kW on a single phase property and meet the Powercor rules by export limiting the system . I havent made any applications yet, but Ill certainly be asking this question when I get quotes!. To get your quotes, please enter your postcode: Flexible Solar Exports To Ramp Up In South Australia, Australian Solar Systems Interest Index: September 2021, Why Australian Solar Installers Love Austrian Fronius Inverters, Tesla Powerwall Price Takes A Tumble In Australia, "Snail Mail" Home Battery Offers: Be Wary, New Minimum VIC Solar Feed-In Tariffs Locked In, Glenrowan Solar Farm Construction Gets Cranking. Am I wrong? Im afraid thats a tough situation. PDF Installation and connection - Powercor The fact is that Powercor does not set an upper limit on the size solar panel system you can install, up to 30kW. Its also worth taking a look in case you shied away from installing solar panels in the past because of the situation now might be the time to revisit the idea. But I can tell you a few things that might help with some of your pondering :- 1. We just had a 30kW inverter solar install for our business and it has been limited to 1.8kW export. AS4777.2:2015 has some rather low default recommendations, which can be tweaked up as no doubt my profile has allowed. However they have been advised that this wont be allowed anymore. I cant see any reference to the NT. amended or replaced from time to time. The distributor deals with that by putting the voltage slightly up at the sending end. And Set Power Limit to 100%. Thus if my system is at maximum output, and I am using 2kW, only 3 kW is being exported to the grid. (2nd one APPROVAL/SITE SPECIFIC CONDITION(s): Total Solar Export must be limited to 5kW). My sister has the same type of inverter (Goodwe) but she lives in the Estern suburbs of Victoria and she has been exporting but her Power Limit was set OFF. 20% Does anyone know how the limiter works in this scenario with 2 inverters? So while the article suggests 10kW inverter ( 13.33kW DC) in fact the limit seemed to be 10kW DC ( hmmm what does 10kW generation mean exactly ?.) To me it does not quite make sense as no system can produce 100% of its capacity meaning my existing 3.5kW will never produce full 3.5kW (on a good day, I am lucky to get 2.5kW). I have previously posted (or, submitted for posting), the proposition that what is needed, is a hybrid (not meaning in this instance, a hybrid inverter as is commonly used) inverter that is like a cross/combination, of the Goodwe GW5000-MS inverter (or, kind of, the GW10K-MS, in terms of power conversion), and the Goodwe GW5048D-ES; three GW5000-MS provides for up to 10kW of panels generating capacity, across three MPPTs (strings? Powercor will respond in one of three ways: Approve the size system you've requested Limit the amount of power you can export to the grid (e.g. hooked up to an energy efficient 44kW motor for a real-world Our Solar & Battery Calculator can give an idea of if its likely to pay: https://www.solarquotes.com.au/solar-calculator/. It owns and operates the states largest electricity distribution network, and is responsible for more than half a million poles and over 88,000 kilometres of powerlines. Real names are preferred - you should be happy to put your name to your comments.2. I am looking at adding a second system (6.2kW) with GoodWe inverter. Where do I find information on reapplying for export with Powercor? Larger inverters that are export limited are allowed on a case by case basis. South Australian solar panel owners can currently export 5 kilowatts of electricity to the grid but under Flexible Exports, they could export double that amount 10kW. Im in regional WA with a rural 2 phase supply. If thats not a good option, you can consider getting a demand tariff and doing pumping outside the peak period when the cost of grid electricity will be relatively low. What I find is installers dont seem to like it when I tell them my plan. 306 47 I was told that as there is an export limit of 5kW and I already have 3.5kW system, my new system will be export limited to 1.5kW. There are profiles that still conform the microinverters to AS4777.2:2015, but can disable Volt-Var/Volt-Watt, change the power factor to 0.9 (some grid operators require this), turn off export altogether or set specific maximum export levels like 1kW, 3kW etc., or configure to satisfy specific grid network requirements. is it 10kW AC or DC?? VAr (var % rated VA) He's been reporting on Australian and international solar energy news ever since. 60% lagging For any amount above the daily export, you will receive our standard retailer feed-in tariff of 5 . 0000008043 00000 n 0000006578 00000 n Enter your postcode now. Unfortunately, SAPN wont allow more than 5 kilowatts of inverter capacity on an SWER line. 0000008571 00000 n 100% Solar export limits for Adelaide suburbs with most panels under SA In writing I was advised: Three-phase homes can install up to 15 kilowatts of inverter capacity or 30 kilowatts with export limiting, except in South East Queensland where special permission is required from Energex to install an export limited inverter over 15 kilowatts. So if an inverter that is export limited to 5 kilowatts is providing 8 kilowatts of power, none of it will go to waste provided the home is consuming at least 3 kilowatts at the time. Or is the energy produced by the panels but dissipated somehow? Despite the low feed-in tariff you will receive it can still be worthwhile, especially if you can shift some electricity consumption to the middle of the day. This is done for three main reasons: In this article, Ill give a broad outline of how export limiting works and why it can be a good idea. 207 I suspect that it is likely, that that they are all signaled equally, not in truth I dont know for sure. Powercor is the Distributed Network Service Provider for central and western Victoria, as well as Melbournes western suburbs. Is there anything that can be done about it? Can anyone shed any light for me? And, when battery powered road vehicles with adequate distance capacity (I have read that VW expects to release a battery powered station wagon, with range between charges, of 700km, in 2023 (although, unless Australia wakes up, such vehicles will be unlikely to come to this neolithic country) ) are available, and, even for the rare ones that apparently, already exist in Australia (having not yet seen a battery powered vehicle in Australia, I wonder whether they are simply an urban myth, as to their presence in this backward country), when would they get charged, if people would only charge them at home? 0000037497 00000 n About CitiPower and Powercor FACT SHEET: SOLAR EXPORT APPROVAL Set appliances to use your solar power Maintenance and safety checks are important Some battery powered cars can not be programmed to only recharge at particular times of the day, and, so, if someone drives one to work (that is, if and when battery powered cars become affordable to the working class) and home after work, then puts the car on the charger, the drain to the grid, that would consequently occur, during peak demand hours, needs to be covered. sonnenBatterie Evo. But there will often be times when the solar system will produce more power than can be exported, so some energy will be lost3. The installation of solar photovoltaic systems as well as the correct inverter settings are critical to ensuring customers get the most for their investment in this technology. Plus a Tesla Powerwall 2. As a side issue for you, if you (like lots of people) have high voltages issue causing shutdown / throttling, I am not a big fan of the Volt-watt modes, as often these modes will also lower the voltages at which the throttling kicks in. Rooftop solar works by turning sunlight into electric power. Interesting article. And, if a street full of these, plugs their cars into the grid, for recharging, starting the recharging between 1700 and 1800, lots of entertaining fireworks, along the street powerlines exploding. Does anyone have similar experience with powercor? For example, our Solar Enablement program is intended to allow more customers to connect a 5kVa solar PV system with export capacity. Notify me of follow-up comments by email. PDF Powercor, CitiPower & United Energy Shane, you appear to be mixing up kW and kWh easily done! Has the oppressive authority in WA ever given a reason for not allowing export limited inverters in WA? Please stay on topic. We have a 3kwh system and are really using as much during the day as we can. you aren't allowed to export any power from your solar system to the grid. 0000018244 00000 n I was lucky to have an early approval, so limited to 10Kw (or due to bad calculation by the approver, 8.6Kw, where he said ALL the Neutral current went down the common Neutral wire, where in fact only the difference between the phases goes down the Neutral (2 phase, 180 degree). Technically, what will happen is the inverter will reduce the solar systems output so the generation will be forgone, but I dont want to go into too much detail in this article. Solar connections for industry | CitiPower & Powercor A Decent Battery From sonnen. But, now, Goodwe have the GW5000-MS inverter, which, from what I have read, is apparently allowed in WA, for a single phase SWIS grid connection, and, that inverter is a 5kW inverter, that has a maximum panels generating capacity; Ronald 0000004736 00000 n All is explained here: http://www.solarquotes.com.au/blog/kw-and-kwh-what-is-the-difference/, ( 5kW per hour is a non-sensical unit unless you want to describe an acceleration of energy! In most cases, if you had your envoy shut off, the micros would start and work on their own and independently of the envoy, and in fact of each other. Powercor households stand to save even more with solar At times MPPT1 is at 600 odd watts while MPPT2 is at 2500 odd watts. Weve got a system that can be left alone in my opinion, so adding say 6.6kw and a 10kw battery makes good sense but what a task. 0000028638 00000 n Thanks for the information. Aside from that, when you have high resistance lines, there is a voltage drop over their length. This is assuming that my understanding of what I have read, is correct; that such a system would be permitted, in a single phase connection to the SWIS grid. So what goes throgh the meter, in either direction, is the difference between what you generate and what you use. This applies to both single-phase and three-phase properties. hour of charging is enough to drive 35km.. With permission export limiting can be used to install larger systems. 0000093063 00000 n The word first can be confusing. Allows installation but has an export limit. How to correctly configure inverter settings. These consumption spikes go past the Solar energy being limited suggesting were drawing from the grid! Depending on their location, some may be constrained to a lesser export level or even no exports at all. There may well be a tipping point in battery prices where a drought of mid day solar will be followed by very little evening use and possibly large numbers of households abandoning the grid altogether. Victoria's "Hotest" Solar Postcode is 3977 at last look. There are exceptions for off-grid installations and systems that are installed with a battery. The reason for this query, is that, in the past, my understanding has been that, in WA, where export limiting is apparently, banned by the gratuitously oppressive state parliament, and, where a limit of a 5kW output inverter, is allowed, for a single phase grid connection on the SWIS grid, a limit of 6.66 kW of panels generating capacity, is imposed for single phase connections to the SWIS grid, and, thence, the limit of panels generating capacity, to which the federal solar panels rebate applies, for such a connection, has been the 6.66kW. There are versions without this consumption monitoring (old Non -s version of Envoy and even the Envoy-S without consumption monitoring). Im in the Endeavour Energy area. After a major works program involving more than 500 different network alterations and other activities across nine key regions among the most constrained parts of the network, Powercors new solar connections export approval rate of just over 60% at the start of the year has increased to above 90%. No active system controls whether you use inverter of imported power. Recent work by Victorian DNSP Powercor on some problematic parts of its network is enabling more solar power from rooftop panels to be exported to the grid. Generally however, I can advise that Powercor intends to upgrade the network over the next 5 years, starting in January, however, the specifics of where upgrades are happening and the order has not been decided. While the Envoy is an important part of the system, the micros largely operate independently of the Envoy, and in a lot of cases can work without the Envoy at all. Although my testing shows that the micros technically operate quite independently, it is important to understand, only the Envoy can provide some critical components to a properly working Enphase System. Means that it caps the amount you can reduce your bills for power used outside of daylight hours? I have a new residential PV system in Perth WA, 6.6kW total panel capacity and a 5kW inverter (Growatt Min 5000TL-X). 0000037380 00000 n Rooftop solar | CitiPower & Powercor Definition A low voltage embedded generation connection in CitiPower and Powercor is defined as "an LV EG system with a total system capacity greater than 30kVA for a three-phase IES or non-IES (excluding ESS) network connection that is: A rooftop solar system's grid export limit is determined by the local electricity network operator - sometimes on a case-by-case basis, sometimes according to an across-the-board standard, and . But I suspect for a lot of people, the vast majority of these over voltage events are simply because the networks are running out of spec voltages. (Although they will also allow an additional 5 kilowatts of battery inverter capacity.) All these profiles need to dance carefully around the problem. The new inverter standard AS/NZS 4777.2:2020 has new inclusions to address grid stability issues - a new feature that is necessary to further enhance the hosting capacity to accommodate more solar and renewable energy systems. What am I missing? But you may as well just get a standard inverter and send your excess electricity into the grid. As batteries currently operate they charge from power in the morning that could otherwise be sold rather than from power that may not be able to be sold in the middle of the day. 2. My AS4777.2:2015 profile allows voltages up to 265v (for short periods, and shuts down on 10 minute averages above 258v). Even if I were exporting 100% of it, it still would only bring down my bills by a tiny amount per month. 0000022631 00000 n So in effect I have two safety guards in place, 1. the 5kw limiter to the grit and 2. the extra Gateway . The Solar installer is telling me that they just started getting 0kW approvals back for about 9 out of 10 requests and so they dont believe they will be able to do many installs at all going forward. 4. Have I been conned into believing I could produce up to 6.6kW myself, but in fact the maximum my inverter will ever allow through to the meter (and to my house) is only 5kW? %%EOF 3. it is, kind of, effectively export limiting. Its located in Ausnet Services' Distribution Area but Ausnet is not part of the CitiPower, Powercor and UnitedEnergy . 100 litres alone means little, but if there are 100 litres per hour, this means 100 litre hours of output. 0000010080 00000 n Select the AS/NZS 4777.2:2020 Australia A setting. That is correct. Solar customers who currently have a limit on the amount they can export are invited to contact Powercor to reapply for an export agreement based on the greater capacity now available on the network. They did say that with future upgrades we could reapply, but I cant find a way to do this. They want to do it there way and it seems my request complicates things for them and I dont hear back, bar a couple. If you are interested you can read about this here: https://www.solarquotes.com.au/inverters/mppt/. startxref This 80% could translate to an estimated 50,000 current or potential solar customers able to export more solar to the grid. "Some of these customers may have received approval to export since, due to network improvements made since their connection." I think the installers like the Volt-watt modes, because if you dont know where to look they hid the problem at your expense anyway. This profile also doesnt impose any export limits, because Endeavour Energy didnt require them of my installation (maximum is 30kW for a 3-phase installation, which my one is well under). If you dont get under the covers and look carefully at the logs you might miss this, or think it is a cloud coming over, rather than voltage triggered throttling. so if I was correctly explained to, then I am limited to export less than 5kW (because my existing system will never produce 3.5kW), No installer (or their salepeople) is able to explain to me how the limiter is connected/set up in the scenario where I have 2 inverters. endstream endobj 307 0 obj <>/Metadata 15 0 R/Pages 14 0 R/StructTreeRoot 17 0 R/Type/Catalog/ViewerPreferences<>>> endobj 308 0 obj <. Victorias Jemena network area: A small but crowded chunk of North and Western Melbourne. A 5 kilowatt inverter will never supply more than 5 kilowatts of power no matter how many kilowatts of panels it has. So my understanding of the info above is that my inverter will increase production in unison with demand until it hits 5kw? IE if Im producing 8KW, the house is using 2KW it will still export 5kw? &K?BK:T$A1Cn Metered and a non metered version. Now, such a hybrid inverter, as I previously submitted as a post, as being needed, would have the capability of providing for up to 10kW of panels generating capacity, and, of power conversion of up to 10kW, to provide for up to 5kW to provide for charging a battery system, and, the other 5kW to provide for the household load and with surplus (to the household load, out of the 5kW provision) being exported to the grid. So having a powerwall is way less useful for helping with an export limit than you would think. The MSO helps us manage and keep our network safe for solar customers. Theyd be higher for a sunnier location such as Perth and lower for cloudier places such as Melbourne or Hobart. Its only possible to go larger with a zero export limit: https://www.powerwater.com.au/customers/power/solar-power-systems/pv-class-requirements. The majority of customers are approved for the export level they request. 220 0000001260 00000 n Hi All, Please keep the SolarQuotes blog constructive and useful with these 5 rules: 1. To get your quotes, please enter your postcode: AEMC: Electricity Prices To Continue To Fall, http://www.johnrogers.com.au/battery_charging_noon.jpg, http://www.solarquotes.com.au/blog/kw-and-kwh-what-is-the-difference/, Why Australian Solar Installers Love Austrian Fronius Inverters, Tesla Powerwall Price Takes A Tumble In Australia, "Snail Mail" Home Battery Offers: Be Wary, New Minimum VIC Solar Feed-In Tariffs Locked In, Glenrowan Solar Farm Construction Gets Cranking. The 7kW charger achieves full charge in 6 hours, and one A man named Canute, proved that, centuries ago. Powercor wrote back with the following response:"Due to the size of t . It appears the wire from the inverter is directly connected to my main fuse for the house circuits. 0000007554 00000 n Very true AL0126. 0000038296 00000 n P/Prated (%) I think is is utter madness that the VIC government is handing out generous rebates of $1850.00 and 4 year interest free loans of up to $1850.00 and Powercor has zero feed in capacity for excess solar power. 0 Furthermore, the sustained overvoltage inverter protection set point shall be set to 258V. Or is there a build up of voltage in the system? Will this mean any additional system would be limited to 0kW output?? Economically this probably Is not viable, as our electricity bill is fairly low. <]/Prev 115522/XRefStm 1575>> In looking to the future, regardless of whether we like it, in spite of, and, despite, the great efforts of the WA state government, and its parent, the Australian feral LNP/ALP government, battery powered road vehicles will come to Australia, and, displace ICE vehicles. Information on whether export limiting is allowed can be found here, but I am going to present the information differently for both ease of use and to make my boss think Ive done something useful. Youll also start receiving the SolarQuotes weekly newsletter, keeping you up to date on all the latest developments on Australias solar scene. I could not convince him that I knew what I was talking about! Origin offers 8 cents per kWh until a daily export limit of 14 kWh is reached. Quotes vary and the deal has to be value/advantage logical or whats the point. Note that connections off the main grid are usually far more restricted. 11kW panels with 10kW 3-phase inverter (Fronius Symo + Fronius 3-phase meter). But if you dont use much electricity it may need to be very small, as I explain here: https://www.solarquotes.com.au/blog/zero-kw-export-solar/. You could approach SAPN and ask for special permission to install more solar capacity on an SWER but I would not be optimistic about that. Tasmania: Under 1% of Tasmanians are on SWER lines, so the generous export limit should often be available. Households and small businesses that generate electricity using solar panels, wind turbines, or other small-scale generators, can feed back any unused electricity into the electricity grid for other customers to use. Powercor's technical assessment aims for these works to enable at least 80% of new solar applications to export 5 kW. We do not prevent customers from installing solar for their own self-consumption. SAPN has told me I cant have more than a 5 kw inverter , but thats just not enough. 0000028229 00000 n Im glad to hear its flexible enough to do that. 00@ Oo Solar Export Limiting Explained -- What It Is & Why It's Useful That can raise the voltage to a level dangerous to appliances. 44% leading Residential properties are unlikely to be allowed to use export limiting to install even larger inverters. Can one have micro-inverter panels without a gateway, and how would that be limited? So if an inverter that is export limited to 5 kilowatts is providing 8 kilowatts of power, none of it will go to waste provided the home is consuming at least 3 kilowatts at the time. Even then, the losses from the limit are minor. But you will probably find that there is another setting that it will shutdown when 10 minute average voltage is a measly 255v. I was really keen for this system with a battery as most of my power is used at night and I like the idea of power during blackouts, which do happen quite a lot here. Victoria's Powercor Lifts Its Solar Exports Game sonnenBatterie Evo. People have done it at fairly low cost with second hand panels and a DC pump.) We installed 4.5kw with a 5kw inverter in 2014. The metered version comes with extra current clamps to hook up to the grid side so you can do consumption monitoring and export limiting. Website link shows system producing well over 10 kW. Okay, so that heading may be a bit of an exaggeration, but improvements the company has carried out appear to have made quite a difference. 0000005986 00000 n
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