Youll also start receiving the SolarQuotes weekly newsletter, keeping you up to date on all the latest developments on Australias solar scene. So really apart from the requirement that the initial startup can only happy on voltages below 253v, I have no throttling until at least 285v and probably even higher. 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. In my case, I have N & W facing panels, My inverters clip to 5Kw for a few hours, but I can still export a reasonable amount. 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. hbbf`b``3 I j ( I have seen my panels producing over 13 kW of power when the battery is drawing 3 kW DC power and the battery, house and car 10 kW of AC power. just wondering if anybody can shed some light on the following, If you cant store the power (too expensive) and you cant export it, why the requirement (or desire) to put in large systems? The uptake of solar has surprised the powers that be so they are basically wasting free energy and penalizing the producers in the process. 0000001575 00000 n 10kW of inverters with 11.325kW of panels. Please keep the SolarQuotes blog constructive and useful with these 5 rules: 1. We might still be willing to do this all the same, from an environmental viewpoint. Its moderately cheaper and the solar feed-in tariff youll receive will lower your electricity bills and increase the amount of clean energy available for others to use. The reason why your sisters inverter is different from yours is your Goodwe would be because yours has a current transformer device that lets it limit the amount of power it exports to the grid. Ronald Hi 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. I also dont know if my meter has limiting but suspect not as it is a pretty dumb device. both said So far I have not seen much more than 5kW DC anyway, but in summer I would expect to see a curve thats flattened at the top during the high sun phase, as it is cut off by the inverter. I have spoken to one installer , but he couldnt really help me . 0000009573 00000 n I had applications rejected, and when I asked there was NO course for negotiation or discussion its the RULES is s synopsis of the responses. The power is first used to meet household consumption, with any surplus exported to the grid for other people to use. However they have been advised that this wont be allowed anymore. About CitiPower and Powercor FACT SHEET: SOLAR EXPORT APPROVAL Set appliances to use your solar power Maintenance and safety checks are important But it took him about another ten years to focus on it in a way that wasnt really stupid, Good Article. The new home didnt have solar. After all, Im a big picture kind of guy. The Ugly: In these areas export limiting may not be allowed at all. 2. 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. 0000004622 00000 n I could easily share my excess power for the time I am not irrigating my crops. And doing so potentially puts you running in a non compliant state. South Australia Power Networks (SAPN) area: SAPN is the only distributor in South Australia. 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 ?.) Or is there a build up of voltage in the system? 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. 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 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. This certainly goes well beyond initial configuration and reporting. Theres more good news, with further improvements to come. If they want a big solar system with an inverter larger than 5 kW, they must export limit the inverter. 0000011077 00000 n Your meter is on the connection between the mains network on one side and the combination of your inverter and your loads on the other side. Im in the Endeavour Energy area. This applies to both single-phase and three-phase properties. Please make sure you engage early with our team through eConnect to check on network capacity for your customers. Victorias Powercor area: Western Victoria, including a large portion of West Melbourne. What Happens to the Surplus Power That Can't Be Exported to the Grid? 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! No-one seems to have replied Dirk, so I will try. I have divided Australias regions into three categories: The information below assumes the property is on the main grid. The installer has been able to get the system through WP in the past as the inverter can limit the export to grid to 3kva. Export limiting generally isnt permitted. I got a question about export limiter that I hope to get some answers from the community. Is this perhaps one of the well-kept secrets about the reality of residential solar production in Western Australia, one that neither the solar installers or inverter manufacturers, let alone Synergy or Western Power want to be publicly known? If they face in two or more directions, it will further reduce the losses by reducing the peak solar output while stretching it out, so it lasts longer through the day. <]/Prev 115522/XRefStm 1575>> Your dedicated meter will inform the inverter, and it will immediately reduce the power, so it doesnt exceed 5 kilowatts1. Is it the 6.66 kW, as the 1.3 overload factor of a 5kW inverter, or, is it the maximum allowed (by the manufacturer) panels generating capacity, for an inverter that is allowed by a state/territory government? Many Australian homes are not allowed to export more than 5 kW to the grid. 0000001260 00000 n We are on a zero limited export. ARTICLE WRITES: Queenslands Energex area: South East Queensland. 253 207 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. 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. Real names are preferred - you should be happy to put your name to your comments.2. Powercor's technical assessment aims for these works to enable at least 80% of new solar applications to export 5 kW. I do NOT have a device in my meter box that could tell the inverter anything about consumption and feed in energy. I am surprised to hear that Powercor has allowed you to increase your exports, but that is good to hear. 0000037497 00000 n ACTs EvoEnergy Network Area: Covers most homes in the ACT, especially in built-up areas. Solar Analytics confirms in this scenario its only exporting up to the limit; 3kw. 2. We are in an area where only about 20% of the homes have solar. P/Prated (%) 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. 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. Seem most solar places, even the ones the go on about how good they are, arent that good when presented with this, what seems to be a conundrum for them. I am a bit confused about export. Can one have micro-inverter panels without a gateway, and how would that be limited? In a Enphase system, only the Envoy can provide this. This extra meter adds to the cost of a solar system. 352 0 obj <>stream That is correct. and only supply me with power from the grid In an Enphase system, that is with the Envoy-S with consumption monitoring. A Decent Battery From sonnen. Powercor is telling increasing numbers of households looking to install new systems in this area they will have a zero export limit. Finally! Under another option to . 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? trailer Its becoming common for solar inverters to be export limited, so the maximum amount of power they send into the grid is less than theyre capable of providing. Does anyone know how the limiter works in this scenario with 2 inverters? Normally single phase properties can have up to 5 kilowatts of solar inverter capacity and 3 phase properties can have 15 kilowatts. This seems technically impossible, because theres only a wire going from the inverter to the meter (the export or feed in to the grid) and a wire going from the meter to my homes main fuse. An option is to take your pumps off-grid and run them independently off a separate off-grid solar system. 0000005986 00000 n It is critical that you install an approved smart inverter and set it correctly. Phone, email, give us feedback or make a claim. 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. Unfortunately, the meter companies and inverter manufacturers cant get their shit together, and the utility meters refuse to talk to the inverters. you request 5kW and Powercor says you can only export 2.5kW) Set a 'zero export' limit - i.e. I suspect that it is likely, that that they are all signaled equally, not in truth I dont know for sure. On a related note, we mentioned yesterday that over the border in South Australia, SA Power Networks is readying to ramp up flexible solar exports in an effort to support more solar installations and its pretty clever stuff. 0000004736 00000 n Nobody wants to see solar energy . For any amount above the daily export, you will receive our standard retailer feed-in tariff of 5 . essential enrgy in central west nsw (Orange) are generally restricting to max 5kw export limit regardless of 1ph or 3ph: 2 x 3ph residential applications approvals cutnpaste below only difference was one specifically stated APPROVAL/SITE SPECIFIC CONDITION(s): Total Site to be export limited to 5kW 3 phase 1.66kW/per phase (and the padmount sub for the subdivision in on the property boundary) NSWs Endeavour Energy area: Western Sydney. But whether or not extra solar capacity will pay for itself is another matter. If you are interested you can read about this here: https://www.solarquotes.com.au/inverters/mppt/. Now, there are quite a few profiles on offer that can be programmed into the microinverters. Its only possible to go larger with a zero export limit: https://www.powerwater.com.au/customers/power/solar-power-systems/pv-class-requirements. 0000038830 00000 n 0000027818 00000 n 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. 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; Assume positive intention.4. I am a total newbie to this but I am unclear why export limiting is good? For example, our Solar Enablement program is intended to allow more customers to connect a 5kVa solar PV system with export capacity. After (almost) three months with no reply, has any reason been given, as to why export limited inverters are not allowed for single phase grid connections to the SWIS grid in WA? There is not likely to be an Enphase system without a gateway (called the Envoy with in the Enphase system), because this is needed to setup the system, configure its profiles and report production and other important functions of the system. 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. You can see from the profile name that it ensures the microinverters conform to the AS4777.2:2015 Australian standard that governs inverters, and it enables the advanced Volt-var and Volt-watt controls for adjusting export power when the grid voltage gets too high (as opposed to abruptly shutting off all export power when grid voltage is too high, which happens without Volt-var and Volt-watt). 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. 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. If that doesnt worry you then you can get a battery and just hope it mostly pays for itself. A condition of this basic connection offer is that all inverter energy systems must have the volt-watt and volt-var response modes enabled with the following settings: Enter your postcode now. Surely the distributors capping what you can export to the grid is a bad thing? Very true AL0126. An Update: I just had system installed 4 days ago in the Energex DNSP and suggest the above is perhaps not quite correct. Theyd be higher for a sunnier location such as Perth and lower for cloudier places such as Melbourne or Hobart. I could not convince him that I knew what I was talking about! Thats a huge jump and even a smidge higher than the Powercor network wide average of 89%. Please keep the SolarQuotes blog constructive and useful with these 5 rules: 1. More information about the program and how customers can get the most out of their rooftop solar is available at www.powercor.com.au/solar-energy sonnenBatterie Evo. Good question Tony. %%EOF 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%. you aren't allowed to export any power from your solar system to the grid. The distributor deals with that by putting the voltage slightly up at the sending end. 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! (Although they will also allow an additional 5 kilowatts of battery inverter capacity.) This could be important, given that we have a state parliamentary election due in a couple of months. I am looking at adding a second system (6.2kW) with GoodWe inverter. It can also only provide this when it is running. This is because even if there is only a refrigerator running during the day it will reduce the losses from export limiting and if an effort is made to shift electricity consumption to the middle of the day then losses can be mostly or entirely eliminated. The daily export limit is averaged across your billing period (calculated by multiplying the number of days in your billing period by your daily export limit of 14 kWh). Thanks for the information. That can raise the voltage to a level dangerous to appliances. Tasmania: Under 1% of Tasmanians are on SWER lines, so the generous export limit should often be available. Im trying to get some unbiased advice on whether or not we should add more solar. 4. Thanks Ron. 0000008043 00000 n 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? Where do I find information on reapplying for export with Powercor? There are lots of variations to this theme, however. Can you provide comment and evaluation of power tracing please. 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. 306 0 obj <> endobj Depending on their location, some may be constrained to a lesser export level or even no exports at all.
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