Sorry if dumb question. 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. Powercor claims 30% increase in rooftop solar export approvals Victorian network service provider Powercor claims a major works program designed to alleviate grid congestion in areas of high rooftop solar PV penetration has boosted the approval rate for new solar connections to export excess energy to the grid by an impressive 30%. Am I wrong? That can raise the voltage to a level dangerous to appliances. The MSO helps us manage and keep our network safe for solar customers. 5 kilowatt inverter + 6.6 kilowatts of solar panels (no export limiting): 0%, 6 kilowatt inverter + 8 kilowatts of solar panels: 4% loss, 7 kilowatt inverter + 9 kilowatts of solar panels: 8% loss, 8 kilowatt inverter + 10 kilowatts of solar panels: 13% loss, So, on the one hand, the Victorian Government is. No-one seems to have replied Dirk, so I will try. 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. hooked up to an energy efficient 44kW motor for a real-world This extra meter adds to the cost of a solar system. 0000004736 00000 n
Metered and a non metered version. Instead the home can benefit from a small system, as I explain here: Ah yes I see. I believe it must have been set up during installation, but the installer company claims that this is handled by Growatt themselves. We installed solar power in November last year and were refused export (zero export). Or is there a build up of voltage in the system? The solar installer or customer must have sought and received pre-approval from us for the requested capacity of the generator. There are two options: 1. We just applied for pre-approval from Powercor and were given a 0kW export approval which is going to make almost anything we choose uneconomical. 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. 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. Thanks so much, David. 0000007057 00000 n
As the LG Chem battery charges using DC current from the panels it is possible to go over the 10 kW inverter limit by charging the LG Chem battery in the middle of the day. I still dont know if they have programmed the inverter to reduce the overall output by a percentage or not. 0000039018 00000 n
While installing solar panels can still be worth it under these conditions, its a disincentive, increases payback time and is generally a pretty crappy state of affairs. And Set Power Limit to 100%. If you cant store the power (too expensive) and you cant export it, why the requirement (or desire) to put in large systems? Plus a Tesla Powerwall 2. 0000005359 00000 n
As far as I know, only solar installers can apply for export capacity in the Powercor area. Solar system size limits explained by state | Solar Choice But depending on our network capacity, export constraints may influence the size of the unit they install. 240 This applies to both single-phase and three-phase properties. The word first can be confusing. If you are in the solar industry - try to get to the truth, not the sale.5. Origin offers 8 cents per kWh until a daily export limit of 14 kWh is reached. I got a question about export limiter that I hope to get some answers from the community. But if you suddenly switch off everything, there is more surplus solar power than youre allowed to export. I realise that Australian legislatures do not care about the future, but, the future is coming, whether the legislatures like it or not. AC Output Data Thanks for the information. They hid the problem pretty well, because they do tend to reduce the amount of shutdowns. Some say so you want to replace your system? Efficiency has and will improve further over time, but never to the point of perpetuity. 0000000016 00000 n
About CitiPower and Powercor FACT SHEET: SOLAR EXPORT APPROVAL Set appliances to use your solar power Maintenance and safety checks are important An option is to take your pumps off-grid and run them independently off a separate off-grid solar system. 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). Hi All, One thing I find is that Voltage control works well: instead of the inverter resetting if the voltage gets too high, my inverters roll back output, so it actually helps my neighbors too because their inverters reset less often. is there a inverter that stops power going back 5kW export limiter imposed on one inverter. 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. Youll also start receiving the SolarQuotes weekly newsletter, keeping you up to date on all the latest developments on Australias solar scene. Ill upgrade the Endeavour Energy area from Ugly to Bad, since things are clearly not all bad there. The inverter reduces the amount of electrical energy supplied by the solar panels. VAr (var % rated VA) ), converting to up to 10kW of AC power, and, the GW5048D-ES provides for up to 6.65kW of panels generating capacity, converting to up to 4.95 kW of AC power, and, acting as a battery management system and UPS, when a battery system (of up to two approved, low voltage, batteries) is connected. Anyway you are probably not supposed to be messing around with the profiles without agreement of your DNSP. 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. 0000006578 00000 n
Whats the logical and practical way forward? 2. At times MPPT1 is at 600 odd watts while MPPT2 is at 2500 odd watts. 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. In contrast, most other network distributors set a strict upper limit on the size solar panel system you can install, typically 10kW for single-phase properties. Hi Everyone, 0000001916 00000 n
Tasmania: Under 1% of Tasmanians are on SWER lines, so the generous export limit should often be available. It is critical that you install an approved smart inverter and set it correctly. We do not prevent customers from installing solar for their own self-consumption. If you are interested you can read about this here: https://www.solarquotes.com.au/inverters/mppt/. But youll need to be confident you wont be hit with high demand charges during the evening peak that will wipe out any advantage. So the size of the system becomes irrelevant if you can only export 3kwh (we are Regional NSW Essential Energy). To give you example, you will probably find the profile you mention is probably throttling from a very low 250v and will ramp down to 20% at 265v. 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. It can also only provide this when it is running. No active system controls whether you use inverter of imported power. startxref
(Image from Finns Tesla App). 0000008043 00000 n
Powercor says it has contacted all solar customers within the previously impacted areas to let them know about the companys progress and to encourage them to consider reapplying for exports. The earth is used as one conductor which has a higher resistance than a copper wire. 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. 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. Zero-sum game: The rise of solar export limits, and what can be done 100 litres alone means little, but if there are 100 litres per hour, this means 100 litre hours of output. 0000018244 00000 n
. Max. This could be important, given that we have a state parliamentary election due in a couple of months. Ready for some quotes? Australian Rooftop Solar Powers Rise Astounding, But.. Australias Emissions: Electricity Down, Transport Up, Compare Feed-In Tariffs And Electricity Plans, Victorias Powercor Lifts Its Solar Exports Game, 3029: Hoppers Crossing, Tarneit, Truganina, 3030: Cocoroc, Derrimut, Point Cook, Werribee, Werribee South, 3551: Ascot (Greater Bendigo), Axe Creek, Axedale, Bagshot, East Bendigo, Emu Creek, Eppalock, Epsom, 3337: Kurunjang, Melton, Melton West, Toolern Vale, 3340: Bacchus Marsh, Balliang, Coimadai, Darley, Hopetoun Park, Long Forest, Maddingley, Merrimu, 3352: Bonshaw, Bungaree, Bunkers Hill, Burrumbeet, Cambrian Hill, Cardigan, Cardigan Village, Clarendon, 3305: Bolwarra, Cape Bridgewater, Gorae West, Heathmere, Portland, Portland North, Portland West, 3444: Baynton, Kyneton, Lauriston, Lyal, Metcalfe, Redesdale, Tylden 3465 Alma, Bowenvale, Daisy Hill, Maryborough. 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. 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. PDF Powercor, CitiPower & United Energy The naming of zones may differ between manufacturers but may appear as: Australia A - applies to the configuration of inverter settings in Victoria and all Eastern . 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. There are versions without this consumption monitoring (old Non -s version of Envoy and even the Envoy-S without consumption monitoring). %%EOF
The fact that export limiting is necessary is not a good thing. 0000027818 00000 n
Or is the energy produced by the panels but dissipated somehow? JackD 1 year ago. I have a new residential PV system in Perth WA, 6.6kW total panel capacity and a 5kW inverter (Growatt Min 5000TL-X). 306 47
The following is a list of the areas in case youve been missed. They want to do it there way and it seems my request complicates things for them and I dont hear back, bar a couple. 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. Victoria network plans upgrade to allow for more rooftop solar exports I am afraid Western Power is very strict. What is 'zero exports' or 'export limiting', why is it affecting We have a 3kwh system and are really using as much during the day as we can. I think that the limiter can connect only to one inverter and not two at the same time. 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. South Australia Power Networks (SAPN) area: SAPN is the only distributor in South Australia. I could not convince him that I knew what I was talking about! Voltage (V) measured at inverter terminals Solar Analytics confirms in this scenario its only exporting up to the limit; 3kw. 0% Nominal Output Power (W) 5000 Heres the Fronius Smart Meter that you need if you want to export limit a Fronius inverter it will add about $500 to the cost of the system: An example of how export limiting works You have an inverter thats exported limited to 5 kilowatts. Our Solar & Battery Calculator can give an idea of if its likely to pay: https://www.solarquotes.com.au/solar-calculator/. With permission export limiting can be used to install larger systems. Powercor wrote back with the following response:"Due to the size of t . hbbf`b``3
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Enter your postcode now. I was told to set Power Limit to ON. 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? 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. 100% Its located in Ausnet Services' Distribution Area but Ausnet is not part of the CitiPower, Powercor and UnitedEnergy . Point Cook Solar limit export to zero by Powercor - Solar PV discussion So basically the whole local industry is going to be cactus until this is resolved. A small solar system can be financially viable. But I can tell you a few things that might help with some of your pondering :- 1. 352 0 obj
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If your solar company provides you with the Solar pre-approval (SPA) number for your pre-approval, we can check specifically what was decided on with regards to exporting. In writing I was advised: Im in the same situation, except I have an existing 5kW system. This gives the advantage of having a new system covered by a new set of warranties. 0000010603 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. Allows installation but has an export limit. See image at http://www.johnrogers.com.au/battery_charging_noon.jpg, CORRECTION: My 13.25 kW system will not go above the 10 kW inverter limit unless my house battery is charging and then it can go to 13.25 kW. Im afraid thats a tough situation. Real names are preferred - you should be happy to put your name to your comments.2. What is the go generally with adding an additional solar system to your home? (We are conected to a 25Kw transformer, with 5 consumers connected.). Solar export limiting, or 'export limiting', occurs most often when there is more power being pushed into the grid than it can handle. 0000005986 00000 n
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Unfortunately, the meter companies and inverter manufacturers cant get their shit together, and the utility meters refuse to talk to the inverters. Im glad to hear its flexible enough to do that. 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. I have 3 x PV systems on one phase. Victorias AusNet network area: The eastern third of Victoria, not including Melbourne or French Island. We just had a 30kW inverter solar install for our business and it has been limited to 1.8kW export. If a home cant export any power at all then there is no financial reason to install a large solar system. It is delivering 8 kilowatts of solar power. 0000001575 00000 n
As your sister can presumably export as much power as her solar inverter can produce it wouldnt need this device. Website link shows system producing well over 10 kW. Theyd be higher for a sunnier location such as Perth and lower for cloudier places such as Melbourne or Hobart. 0000001260 00000 n
But whether or not extra solar capacity will pay for itself is another matter. Though endless quibbling over unnecessary details might keep the presses churning, a FACT remains that Ive been using ever-more-cost-effective batteries since 1980. And also is it worth installing solar with 0 kWh limit with self consumption around 20-30%( payback 6-7 years). embedded generation system to the CitiPower and Powercor low voltage networks. The battery is charging from the DC current which is before the inverter. 4. PDF CitiPower Pty Ltd/ Powercor Australia Ltd 60% lagging Put down your weapons.3. I am on my second Tesla EV and the new one has a rage of 700km if youre not a lead foot. 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. "Some of these customers may have received approval to export since, due to network improvements made since their connection." 0000029403 00000 n
The new home didnt have solar. The infrastructure is not sufficiently flexible to deal with this. Your dedicated meter will inform the inverter, and it will immediately reduce the power, so it doesnt exceed 5 kilowatts1. 0000037686 00000 n
Below is the email response I received from Powercor. Im in the Endeavour Energy area. The good news is, even in a worst-case situation, the amount will be fairly minor. 0000037380 00000 n
We respect your privacy and you can opt out from the newsletter at any time. The data has 5KW flat lining confirming more is being generated. Will this mean any additional system would be limited to 0kW output?? He first became interested in environmental matters when he was four years old after the environment tried to kill him by smashing fist sized hailstones through the roof of his parents Toowoomba home. Smart inverter settings | CitiPower & Powercor Please confirm the maximum export limit in the relevant section of this application.. For example, our Solar Enablement program is intended to allow more customers to connect a 5kVa solar PV system with export capacity. 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). Even then, the losses from the limit are minor. The majority of customers are approved for the export level they request. 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. Very true AL0126. Contracts and resources for connection agreement, Vegetation clearing requirements for new powerlines, Registered Electrical Contractor resources, Rapid Earth Fault Current Limiters (REFCL), Endorsement for wholesale demand response. Even if you have the Envoy-S, I believe at least on paper there was a Enphase Envoy-S Of more concern is occasional spikes in consumption which go past the 5kw limit. Long term benefits would be a more energy efficient system. If at any moment in time you are generating more solar electricity than you need, the excess is exported to the grid. Surely the distributors capping what you can export to the grid is a bad thing? Makes sense but begs my next question (sorry). So an Enphase setup, without a continuously operating Envoy with not be providing this functionality and likely to raise some concerns in the AS4777.2015 certification process if they did not take steps to make sure these functions are always guaranteed to be implemented. Actually I made a chart showing the percentage of electricity lines in each state that were SWER but I left it out for the sake of brevity. What I find is installers dont seem to like it when I tell them my plan. Up until quite recently, Powercor had been informing a large proportion of households looking to install new solar systems they will have to cop a zero export limit due to high congestion created by exports from existing systems. 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. 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. I can also see specific profiles for other grid networks, such as Ausgrid and Ergon, that likely have specific requirements of the inverters. 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).
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