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. NSWs Endeavour Energy area: Western Sydney. 0000038296 00000 n Why on earth would I do that if I can help it. 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. But it took him about another ten years to focus on it in a way that wasnt really stupid, Good Article. How to correctly configure inverter settings. Unfortunately, the meter companies and inverter manufacturers cant get their shit together, and the utility meters refuse to talk to the inverters. xref NSWs Essential Energy area: Regional NSW. 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. Ronald 2. And doing so potentially puts you running in a non compliant state. 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, Perhaps it is worth mentioning that the stricter export limitation becomes, it will make a stronger argument for batteries. Will this mean any additional system would be limited to 0kW output?? 11kW panels with 10kW 3-phase inverter (Fronius Symo + Fronius 3-phase meter). Worried the impact this will have currently when we charge an EV in the near term. I think of it like the rate at which water is flowing out of a hose. If you are export limited, the only way to implement that is with some sort of meter as Ronald says. Efficiency has and will improve further over time, but never to the point of perpetuity. In my mind though the Smart meter at the box would adjust the export limit in line with what the house is consuming? But if you suddenly switch off everything, there is more surplus solar power than youre allowed to export. 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. As has been explained (and COSTED) on previous occasions batteries are VERY cost-effective.IF you stay away from the hi-tech/overpriced/dependence-creating/unproven battery-systems advocated by commercially self-interested parties. hooked up to an energy efficient 44kW motor for a real-world I wouldnt drive anything else. That can raise the voltage to a level dangerous to appliances. The word first can be confusing. But if you had a larger solar system with a larger inverter that was export limited to 5 kilowatts it could potentially supply 2 kilowatts to your home while exporting 5 kilowatts to the grid. Australian network service providers (including CitiPower) use solar export limits to keep voltage levels in transmission lines operating within safe . Ready for some quotes? 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. 260 Makes sense but begs my next question (sorry). 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. 0000018244 00000 n Many NSW rural situations are limited to 3Kw export, due to the length of the transmission lines. Some say so you want to replace your system? So-called wasting of the extra electricity produced is irrelevant: sunlight is FREE, and whether I use it or not has no bearing on the environment. 1. The solar PV system is connected to the network via an inverter. There are exceptions for off-grid installations and systems that are installed with a battery. &K?BK:T$A1Cn 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. My solar installer applied to Powercor to install a 5.4kw system at my Point Cook address. 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. 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). . Anyway you are probably not supposed to be messing around with the profiles without agreement of your DNSP. There are two options: 1. They want to do it there way and it seems my request complicates things for them and I dont hear back, bar a couple. Were continually investing in our networks and aim to keep customers informed if additional export capacity becomes available in their area. I am surprised to hear that Powercor has allowed you to increase your exports, but that is good to hear. SAPN has told me I cant have more than a 5 kw inverter , but thats just not enough. As far as I know, only solar installers can apply for export capacity in the Powercor area. just wondering if anybody can shed some light on the following, Even then, the losses from the limit are minor. 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. Thus if my system is at maximum output, and I am using 2kW, only 3 kW is being exported to the grid. 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! Furthermore, the sustained overvoltage inverter protection set point shall be set to 258V. 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. Residential properties are unlikely to be allowed to use export limiting to install even larger inverters. Of course, if you are planning to get an electric car, that has the potential to make a huge difference to your self consumption of solar power. 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. 0000005986 00000 n Im in the Endeavour Energy area. Certainly this dumb meter is not capable of sending current from the inverter selectively to my home circuits and any excess to the grid? I have an existing 3.5kW PV system with Solis inverter. 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). The metered version comes with extra current clamps to hook up to the grid side so you can do consumption monitoring and export limiting. Some networks will allow larger sizes than those outlined below, pending specific approval from the network. Queenslands Energex area: South East Queensland. These consumption spikes go past the Solar energy being limited suggesting were drawing from the grid! No active system controls whether you use inverter of imported power. Origin offers 8 cents per kWh until a daily export limit of 14 kWh is reached. 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. hbbf`b``3 I j 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. 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. And Set Power Limit to 100%. Generation sources can be, but are not limited to solar, wind and batteries. It would definitely be better if we didnt need to limit the amount of power solar systems sent into the grid. Powercor's technical assessment aims for these works to enable at least 80% of new solar applications to export 5 kW. Solar export limiting, or 'export limiting', occurs most often when there is more power being pushed into the grid than it can handle. Under another option to . In reality, the losses will be considerably less. Still, few people will want more than the 13.33 kilowatts of panel capacity single phase homes can generally install: The Bad: Homes with single-phase power on the main grid can have up to 5 kilowatts of inverter capacity but can usually get around this limit by installing an export limited solar inverter of up to 10 kilowatts. 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. In a Enphase system, only the Envoy can provide this. But still the solar companies keep trying to sell it to 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? I know in the movie the Bad was worse than the Ugly, but thats not the way Im doing it. Tasmania: Under 1% of Tasmanians are on SWER lines, so the generous export limit should often be available. For example, I can see several Energex profiles that do things like limit export to differing amounts, turns on Volt-var without Volt-watt, or sets the power factor to 0.9. It is delivering 8 kilowatts of solar power. Youll also start receiving the SolarQuotes weekly newsletter, keeping you up to date on all the latest developments on Australias solar scene. Where do I find information on reapplying for export with Powercor? 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. Note that connections off the main grid are usually far more restricted. However they have been advised that this wont be allowed anymore. 0000010080 00000 n So what goes throgh the meter, in either direction, is the difference between what you generate and what you use. Rubbing salt into the wound were situations where someone was zero export limited while their next door neighbour wasnt. 2. Im afraid thats a tough situation. As discussion of the topic of export limiting, is continuing, what,if any, is/are the direct effect differences to electricity grid load (as in the load on the wires, not the load as the term used for meaning demand), between a 5kW inverter, and a 10kW inverter with 5kW export limiting? 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. 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. We want to add a battery and it seems logical to add more cells also to another inverter/battery setup. 3. 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. 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? AC Output Data

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