0000017636 00000 n All these profiles need to dance carefully around the problem. ARTICLE WRITES: Queenslands Energex area: South East Queensland. As your sister can presumably export as much power as her solar inverter can produce it wouldnt need this device. 0000004823 00000 n Now, that would help protect electricity grids, especially, the fragile, decrepit SWIS grid, for the present. 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. 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). 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 0000005986 00000 n We installed 4.5kw with a 5kw inverter in 2014. Will this mean any additional system would be limited to 0kW output?? I have a new residential PV system in Perth WA, 6.6kW total panel capacity and a 5kW inverter (Growatt Min 5000TL-X). STCs can be received for panel capacity up to one-third greater than the inverter capacity. Or, if you want a lower cost method of dealing with blackouts, you can get yourself a small generator. you aren't allowed to export any power from your solar system to the grid. 258 ACTs EvoEnergy Network Area: Covers most homes in the ACT, especially in built-up areas. This is disappointing as this would be an easy option to implement. Powercor says the Solar Hotspots initiative is the first stage of a five-year Future Networks program to support customer investment in solar power systems, electric vehicles and battery storage. 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. I suspect that it is likely, that that they are all signaled equally, not in truth I dont know for sure. Im in the same situation, except I have an existing 5kW system. Im in the Endeavour Energy area. Queenslands Ergon network area: All of Queensland on the main grid outside of South East Queensland. Its only possible to go larger with a zero export limit: https://www.powerwater.com.au/customers/power/solar-power-systems/pv-class-requirements. and only supply me with power from the grid But I will warn you, even with the high cost of grid electricity and the low solar feed-in tariff in Western Australia, batteries normally wont pay for themselves. 0000010603 00000 n 0000093063 00000 n So if your home isnt currently drawing power you wont know from looking at the display if its capable of producing the maximum 5 kilowatts or if it cant provide more than 3 kilowatts. Youll also start receiving the SolarQuotes weekly newsletter, keeping you up to date on all the latest developments on Australias solar scene. (We are conected to a 25Kw transformer, with 5 consumers connected.). The solar PV system is connected to the network via an inverter. I think I was partially wrong about how my PV is connected to the home and the meter. MPPT2 always shows better performance than MPPT, usually quite significantly better. Activities part of Powercors Solar Hotspots program carried out over three months included upgrading infrastructure, adjusting tap settings on street-level transformers, balancing voltage levels on powerlines and various tweakery at zone substations. About 50%. Do the inverters prevent the production of energy by the solar panels when an export limit would otherwise be exceeded? People have done it at fairly low cost with second hand panels and a DC pump.) 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. 0 Thanks for the information. Wouldnt it be better for the inverter to display its total actual potential output under current conditions? I believe it must have been set up during installation, but the installer company claims that this is handled by Growatt themselves. 5kW times the number of hours is the total production over that time. If so, it would make replacing the whole system more viable which is exactly what I wanted to avoid (and such a waste!). &K?BK:T$A1Cn Store it and use it later (this requires solar battery storage), or it disappears into thin air via a heat sink. the system is set to export the maximum amount of power approved in our Solar Export Pre-Approval to you your obligations as the owner and operator of an 'embedded generator' exporting . However they have been advised that this wont be allowed anymore. Youre using a total of four kilowatts to cook your lunch, so your home is exporting 4 kilowatts, which is below the limit. I realise that all the political parties in the the WA state parliament and especially, the Synergy/Western Power conglomerate, that controls approvals of domestic rooftop photovoltaic systems connected to the SWIS grid, are opposed to domestic rooftop photovoltaic systems (even though we stabilise and sustain the grid), but, I am wondering whether any reason has ever been given by the oppressive authorities, for banning export limited inverters in WA. 44% leading Where do I find information on reapplying for export with Powercor? Were continually investing in our networks and aim to keep customers informed if additional export capacity becomes available in their area. South Australia Power Networks (SAPN) area: SAPN is the only distributor in South Australia. 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. 0000001757 00000 n 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. Makes sense but begs my next question (sorry). Does anyone know how the limiter works in this scenario with 2 inverters? Victorias AusNet network area: The eastern third of Victoria, not including Melbourne or French Island. We respect your privacy and you can opt out from the newsletter at any time. If we consider a home in Sydney where no electricity is used during the day, and all the solar panels face directly north, then the percentage of output that will be lost due to a 5 kilowatt export limit would be: So even in a worst-case situation for Sydney, an 8 kilowatt solar system that is exported limited to 5 kilowatts will only lose 4% of generation. 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. But it took him about another ten years to focus on it in a way that wasnt really stupid, Good Article. . 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. 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. 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! But you probably would not recover the cost of the battery within its lifetime. (Or at least it will be expensive to set up well. Upgrading the local electricity network so more businesses and households can export excess solar to share. Energex doesnt automatically allow inverters over 5 kilowatts to be installed with export limiting, but currently regularly grants permission for single-phase homes on the main grid to install up to 10 kilowatts of inverter capacity with export limiting. But, if you are really keen, I suppose you could use a site such as PV Institutes Live PV Map to see how other solar systems in your general area are performing: Note that patchy cloud can produce a lot of variation in output. About CitiPower and Powercor FACT SHEET: SOLAR EXPORT APPROVAL Set appliances to use your solar power Maintenance and safety checks are important Its the same with kW and hours of solar electricity production. Thus, the question arises; if a single phase domestic rooftop photovoltaic system, involving a Goodwe GW-5000-MS inverter, and, 10kW of solar panels generating capacity, is installed (across up to three MPPTs), would the federal solar panels rebate apply to all of the 10kW of solar panels, or, to only the first 6.66 (or whatever is the exact applicable quantity) of the solar panels generating capacity? There are versions without this consumption monitoring (old Non -s version of Envoy and even the Envoy-S without consumption monitoring). As a single example, the Renault Kangoo ZE van (I think that it is the only battery powered cargo van currently available in Australia) has a 33kWh battery, and, To go further, Kangoo Z.E boasts a Z.E 33 (33kWh) battery, 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. But there will often be times when the solar system will produce more power than can be exported, so some energy will be lost3. Western Australia Horizon Power area: Regional Western Australia. Tasmania: Under 1% of Tasmanians are on SWER lines, so the generous export limit should often be available. 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. SAPN has told me I cant have more than a 5 kw inverter , but thats just not enough. 0% 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. just wondering if anybody can shed some light on the following, 0000022631 00000 n AC Output Data 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. NSWs Endeavour Energy area: Western Sydney. 0000001575 00000 n startxref My assumption is (and I may be wrong after all) that the idea of using my own energy first before buying from the grid is an illusion, and in fact it only appears like that because all the energy from the inverter (up to 5kW) is measured as exported, all energy required by the house is actually imported from the grid (as if there was no solar system at all), and it is just because the exports are offset against the imports for billing, why it appears that my PV system is reducing the imports. Then the information that was left was cut to make the piece more introductory, but perhaps all these reductions made the article like my favorite World War II movie Abridged Too Far. This means you tend to see panels at the end of strings shutdown soonest on voltage risk conditions, as they have the highest voltage rise being at the end of the string. As a general rule, 5kW tends to be the upper system size limit for single-phase connections, but some networks allow up to 10kW. 0000001916 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. 0000039284 00000 n The percentage var/VA level leading is the inverter sourcing vars to the grid, whereas the percentage var/VA level lagging is the inverter sinking vars from the grid. 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) 0000010080 00000 n 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. 0000038752 00000 n The current Envoy they will be selling is the Envoy-S. Before that was the straight Envoy which did not have the consumption monitoring / metering needed to do export limiting. Can I share my power excess with me neighbour? Also note that for new installations in WA, only residences with inverters of 5 kilowatts or less can receive the states, Western Australias Western Power area: Perth and South West WA. 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. NSWs Ausgrid Network Area: This covers East Sydney, Newcastle, and out to Merriwa. If you are in the solar industry - try to get to the truth, not the sale.5. The ideal way to measure the power flow in and out of your house would be to ask your existing electricity meter. endstream endobj 351 0 obj <>/Filter/FlateDecode/Index[17 289]/Length 31/Size 306/Type/XRef/W[1 1 1]>>stream The standard relating to solar inverters is about to change. Solar Analytics confirms in this scenario its only exporting up to the limit; 3kw. Great article and content on this website 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, Powercor's new solar connections export approval rate of just over 60% at the start of the year has increased to above 90%. Rubbing salt into the wound were situations where someone was zero export limited while their next door neighbour wasnt. 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. It is just the placement of the meter and the current sensor that controls the limiting. It does this by adjusting the MPPT but instead of working to maximize power from the panels it reduces it. So the size of the system becomes irrelevant if you can only export 3kwh (we are Regional NSW Essential Energy). Has the oppressive authority in WA ever given a reason for not allowing export limited inverters in WA? 100 litres alone means little, but if there are 100 litres per hour, this means 100 litre hours of output. 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. 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%. Off the main grid, rural properties can have 3 kilowatts of inverter capacity. As per current standards, a single phase premises is limited to 10kW generation and 5kW export. Thanks Ronald! Thats a huge jump and even a smidge higher than the Powercor network wide average of 89%. 1. I cant justify the cost of adding additional solar if the max I can export with Essential energy is 3kwh. Theres more good news, with further improvements to come. The solar installer or customer must have sought and received pre-approval from us for the requested capacity of the generator. Now, there are quite a few profiles on offer that can be programmed into the microinverters. The majority of customers are approved for the export level they request. I have a 14kW solar array running Enphase IQ7+ microinverters (43 of them) hooked up to the grid in a 3-phase configuration in the Endeavour Energy area in NSW, and they currently have the profile AU default AS4777.2:2015 30kVa, Vv, Vw set. 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. No-one seems to have replied Dirk, so I will try. 1. We are on a zero limited export. 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. It is delivering 8 kilowatts of solar power. As far as I know, only solar installers can apply for export capacity in the Powercor area. 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. 0000038296 00000 n It would definitely be better if we didnt need to limit the amount of power solar systems sent into the grid. Victoria's "Hotest" Solar Postcode is 3977 at last look. My solar installer applied to Powercor to install a 5.4kw system at my Point Cook address. 0000037952 00000 n The new home didnt have solar. NSWs Essential Energy area: Regional NSW. 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. Notify me of follow-up comments by email. This is often referred to as 'network constraints'. Heres what that means. going back into the grid with no batteries. The majority of customers are approved for the export level they request. So, if a contractor or tradesman, using one of these during the day, or, another type of worker, gets home after work, and, plugs one of these in to charge, an immediate drain of 7 kW (I believe that it is actually 7.4 kW), and immediate significant drain is imposed on the grid, for several hours, during peak demand. 2. The Good: In these locations, properties can usually install up to 10 kilowatts of solar inverter capacity if they have single-phase power and up to 30 kilowatts with 3 phase power. For example, if you are export limited, only the Envoy-S with consumption monitoring can provide this. We might still be willing to do this all the same, from an environmental viewpoint. The inverter reduces the amount of electrical energy supplied by the solar panels. Amongst other things, AS4777.2015 has some requirements to shutdown on phase imbalance in a 3 phase setup. Interesting article. I am afraid Western Power is very strict. Origin offers 8 cents per kWh until a daily export limit of 14 kWh is reached. Michael caught the solar power bug after purchasing components to cobble together a small off-grid PV system in 2008. 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!
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