207 Worried the impact this will have currently when we charge an EV in the near term. To add to this, in the installer section of the Envoys web server control panel, you can set the profile by which all microinverters operate. 0000037952 00000 n I am trying to get a system installed (6.5k smart hybrid inverter with a battery) and have been told by Western Power that I am limited to a 3.0 kva system. Here at SolarQuotes, we had been hearing quite a few complaints about Powercors zero export limits. (2nd one APPROVAL/SITE SPECIFIC CONDITION(s): Total Solar Export must be limited to 5kW). NSWs Essential Energy area: Regional NSW. Western Australia Horizon Power area: Regional Western Australia. Below is the email response I received from Powercor. 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. Am I wrong? I know in the movie the Bad was worse than the Ugly, but thats not the way Im doing it. Ill upgrade the Endeavour Energy area from Ugly to Bad, since things are clearly not all bad there. There are versions without this consumption monitoring (old Non -s version of Envoy and even the Envoy-S without consumption monitoring). Allows installation but has an export limit. Its also unusual for a large solar system to have all the panels facing the same direction. In future, will powercor allow export limit if they upgrade transformer? Has the oppressive authority in WA ever given a reason for not allowing export limited inverters in WA? 00@ Oo Self confessed newbie to the mechanics of Solar so bear with me. I want about 10Kw of panels so I can run pumps etc. 0000010603 00000 n 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. 0% It seems so strange that it is clear government policy to get more solar going and yet the network operators are effectively blocking it now. 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. Depending on their location, some may be constrained to a lesser export level or even no exports at all. Anyway you are probably not supposed to be messing around with the profiles without agreement of your DNSP. 0000038752 00000 n 0000038218 00000 n The loss figures above are for Sydney and are affected by the climate. ), converting to a maximum of 5kW of AC power, whilst the GW10K-MS provides for up to 13.5kW of panels generating capacity, across three MPPTs (strings? 253 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. VAr (var % rated VA) 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: Whilst this may not be technically defined as export limiting, as the inverter specifications, specify that the inverter, whilst allowing up to an overload factor of 2, will only generate up to 5kW of A/C power 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. Makes sense but begs my next question (sorry). 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. 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. In a Enphase system, only the Envoy can provide this. Were seeing a real lift in the number of customers able to export excess solar back into the grid in these areas, which were among the most constrained in our network only a few months ago, said Powercor General Manager Electricity Networks, Mark Clarke. 0000004736 00000 n Very true AL0126. 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. According to NT Power and Water they will normally allow up to a 5 kilowatt inverter with single phase power and up to a 7 kilowatt inverter with 3 phase power. 0000008043 00000 n 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. It is critical that you install an approved smart inverter and set it correctly. When a home is exported limited, all the power the solar inverter can produce is available for the home to use. Metered and a non metered version. Is this correct? I am not even sure the inverter would support that, but I fear that sadly up to 25% of the PV energy might be going to waste! Notify me of follow-up comments by email. 0000005986 00000 n If you are interested you can read about this here: https://www.solarquotes.com.au/inverters/mppt/. If so, it would make replacing the whole system more viable which is exactly what I wanted to avoid (and such a waste!). 0000001916 00000 n &K?BK:T$A1Cn It is just the placement of the meter and the current sensor that controls the limiting. 60% lagging 0000039284 00000 n They did say that with future upgrades we could reapply, but I cant find a way to do this. 100% This is sufficient to charge a battery, although larger solar systems generally improve the return from batteries. 2. So you may decide adding a second system is worthwhile, or you may want to put it off until your current system develops problems and replace it with one large new system. MPPT2 always shows better performance than MPPT, usually quite significantly better. March 2022 6 Powercor means Powercor Australia Limited, ABN 89 064 651 109. portal means the eConnect portal for CitiPower and . Solar export limits for Adelaide suburbs with most panels under SA Australian Rooftop Solar Powers Rise Astounding, But.. Australias Emissions: Electricity Down, Transport Up, Compare Feed-In Tariffs And Electricity Plans, Solar Export Limiting What It Is & Why Its Useful. Victorias Jemena network area: A small but crowded chunk of North and Western Melbourne. The infrastructure is not sufficiently flexible to deal with this. Perhaps it is worth mentioning that the stricter export limitation becomes, it will make a stronger argument for batteries. 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 . ACTs EvoEnergy Network Area: Covers most homes in the ACT, especially in built-up areas. Good question Tony. I have divided Australias regions into three categories: The information below assumes the property is on the main grid. I got a question about export limiter that I hope to get some answers from the community. In exchange, the customer receives a small rebate on their bill for every kilowatt-hour (kWh) they export. I have a new residential PV system in Perth WA, 6.6kW total panel capacity and a 5kW inverter (Growatt Min 5000TL-X). 260 The ideal way to measure the power flow in and out of your house would be to ask your existing electricity meter. Its located in Ausnet Services' Distribution Area but Ausnet is not part of the CitiPower, Powercor and UnitedEnergy . I could not convince him that I knew what I was talking about! both said This certainly goes well beyond initial configuration and reporting. Have a good christmas. But this is at least partially because when you throttle back output, you also reduce the amount of voltage rise you are causing on your local connection to the point of interconnect which is probably contributing to the issue. 5kW export limiter imposed on one inverter. (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 . Finally, there are profiles for other countries that run 220-240V networks, and its remarkable how many of them use the older AS4777.3:2005 standard in their countries, because for many of these countries, this is the only profile the Envoy offers. 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. 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. Can anyone shed any light for me? Theyd be higher for a sunnier location such as Perth and lower for cloudier places such as Melbourne or Hobart. If that doesnt worry you then you can get a battery and just hope it mostly pays for itself. Put down your weapons.3. Yes I do have Enphase micro-inverters and an Envoy gateway, though not enough sunny roof to exceed 5kW, so my interest is rather academic but real. I was told to set Power Limit to ON. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Download the first chapter of The Good Solar Guide, authored by SolarQuotes founder Finn Peacock, FREE! I have a 5kw solar system plus a Tesla powerwall 2 on my house . This gives the advantage of having a new system covered by a new set of warranties. I believe it must have been set up during installation, but the installer company claims that this is handled by Growatt themselves. I live in Warrnambool, Victoria. 3. Im in the same situation, except I have an existing 5kW system. I am a bit confused about export. While I dont know where you are a 4 kilowatt solar system should produce an average of around 18 kilowatt-hours a day in WA. 0000037764 00000 n Please stay on topic. Also, if you are on the main grid the amount of power you are allowed to export can still be below the limits given or even zero, depending on how much additional solar capacity the local grid can handle at your location. Just last week, Powercor (Western Victoria) advised that they now have more room in the grid for export. There are two options: 1. While losses increase as the solar power system size goes up, even with 10 kilowatts of panels which is twice the export limit, only 13% of generation is lost. When it comes to the limiting imposed by the electricity companies feed-in regulations, it means that, at any one time, not more than 5kW (100L) maybe be output to the grid (hose), it has nothing to do with the total over a certain period of time. 0000037497 00000 n The power is first used to meet household consumption, with any surplus exported to the grid for other people to use. At the moment a battery system is unlikely to pay for itself, but you could install a system that is larger than what makes financial sense for your current situation and hope home batteries will fall in price over the next few years. Thats a huge jump and even a smidge higher than the Powercor network wide average of 89%. Solar and renewables for installers / RECs - Jemena The inverter reduces the amount of electrical energy supplied by the solar panels. What is 'zero exports' or 'export limiting', why is it affecting 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. 0000011077 00000 n I have solar on my house and having it installed at an investment property, but not sure what to do now as there will be no benefit of feed in tariff. Wouldnt it be better for the inverter to display its total actual potential output under current conditions? 11kW panels with 10kW 3-phase inverter (Fronius Symo + Fronius 3-phase meter). 0000005359 00000 n SAPN has told me I cant have more than a 5 kw inverter , but thats just not enough. 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. I am afraid Western Power is very strict. The 7kW charger achieves full charge in 6 hours, and one PDF Powercor, CitiPower & United Energy I am a total newbie to this but I am unclear why export limiting is good? As such, unless the investment pays for itself within at most 5-6 years, IMHO it is not a good investment/waste of money and natural resources. I have not been able to get an answer from Growatt Australia yet, it seems there is a bit of a cover-up going on. I think it is illegal in WA to rewire your inverter or modify any parameters, as it may result in more than 5kW being sent to the grid, so I will just bite the bullet and see that I use as much solar as possible. I am not sure whether it has been explicitly explained, but, what exactly, is the limit of panels generating capacity, that is covered by the federal solar panels rebate? Will this mean any additional system would be limited to 0kW output?? A Decent Battery From sonnen. But it seems the situation has been changing for the better in the last couple of months in a number of affected areas.
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