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Spending a billion dollars to bring solar manufacturing back to Australia is 'worth a shot', researchers say
  • Those turbines look interesting, definitely a plausible technology based off that video. Looks like they have used gearing between the two blades to concentrate the energy from both blades so you only need one electric generator (generally just referred to as an electric motor but they do both) which is far more efficient (but still along the same lines of) stacking multiple up using electrical connections like you can do with solar modules to increase power output, which is what I was thinking of when I wrote my previous comment.

    It also makes me think of this, https://youtu.be/Qbv_dtwTGDo?si=fSpRWpGqBlTEjMqH, which seems like a decent idea to me.

    I'm not sure if it is a lack of feasibility that is getting in the way or just a lack of political will and interest. Could even be because solar is so cheap now that a newer, less refined technology (even in terms of legislation and infrastructure planning) with higher up front costs is just less desirable. I think I could still be worth investing in both in the long run (assuming it is actually viable).

  • Spending a billion dollars to bring solar manufacturing back to Australia is 'worth a shot', researchers say
  • I don't know heaps about them directly, but in terms of rooftop VAWTs I guess it could depend on the type of roof, and ultimately the amount of wind that the rooftop will be exposed to.

    It could be more challenging to create residential scales VAWT than it would be for commercial buildings such as the ABC building you mentioned (don't know it off the top of my head but I'm assuming it is a least a few stories tall). I'd say a reason for this could be that as the amount of wind the turbine is exposed to reduces, so would the size of the generator, to ensure the force of the wind on the blades can generate enough counter-torque to get the blades moving and therefore generate power. Using smaller motors would definitely be possible, but you might reach a point where the amount of materials needed for each small-scale VAWT outweighs the amount of return through energy generation of each turbine, because the motor is so small, and counter-torque so small that the motor turning would only generate negligible amounts of power. EDIT: Forgot to add the context of I think there is generally more wind at higher altitudes, whether this is an in general rule or relative to the surrounds (like being in a valley vs being at the highest altitude in the region; or if you are in a low density township vs if you are in a density populated city with more structures blocking wind) I'm not certain, but it is the context for why I said residential rooftop VAWT may end up having far lower generating potential that commercial rooftop VAWT, because I'd say there is more wind on the roof of a commercial building than a residential one.

    I would guess the large horizontal axis wind turbines would use large AC induction motors to generate the electricity as the blades turn. I would guess that AC motors would have some size limitations (easier to make really big ones than really small ones, not to say really big ones would present other challenges, but it would be incredibly challenging to make them under a certain size due to all the copper windings that need to fit in the motor) so once your VAWT reaches below a certain size a DC motor would need to be used. This introduces further complications, as our grid runs on AC, any DC power generation first needs to be converted to an AC waveform for the power to be injected in the grid (or used to power a load connected to the grid). This process is already performed for solar using inverters. It would also be performed for HAWTs (probably both AC to DC conversion followed by DC to AC conversion) to ensure the output (voltage, frequency, power factor) matches the grid.

    It gets more complicated though, as inverters have an allowable operating DC input voltage range (these can be quite high voltages as you can place solar modules in series to increase the voltage of the generation. For example, if you put two solar modules, each with an operating voltage of 50V (arbitrary number) in series, the total voltage of that series connection will be 100V). This allows larger inverters to be used. It may not be as easy to utilise larger inverters in such a way with VAWT unless you scale up the number of them as using inverters for each individual small-scale VAWT could mean the use of a lot more materials. EDIT 2: There are cases where small inverters (known as micro inverters) are connected to every solar module in an array, so it could be argued you could do the same with small VAWT. There are also things called optimisers, which i think essentially perform the operation of a chopper (described further below) changing the DC voltage to match all the other modules before connecting to an inverter. Both of these option involve extra costs when compared to direct connection of entire strings (described further below) of modules to an inverter.

    Considering using VAWT with batteries will also have added complications. Batteries store DC energy, so an AC to DC conversion would not be necessary to charge the batteries, but you would most likely still need DC to DC conversion (from memory they are called boost/buck choppers) to increase or decrease the input voltage to match the battery terminal voltage (a lot of solar inverters that can connect to batteries most likely already have these installed internally). These boost/buck choppers also have voltage input limitations, meaning they won't operate if the input voltage is too low or too high. Therefore, to be able to use both solar and wind on say a residential rooftop, it may mean the installation of more, or retrofit of existing electronics so the power waveforms of both the solar modules and the VAWT can be transformed to match the grid or battery power waveforms. I think it's probably unlikely that a smaller VAWT could match the voltage of multiple solar modules connected in series (known as a string), so either a second chopper would need to be added which can transform DC waveforms from a much lower voltage to match the battery terminal DC voltage (vs comparing the voltage difference between the solar string choppers input/output voltages), the choppers in the inverters would need to accept a far greater input voltage range, or as I said above, you would need to connect multiple small-scale VAWTs together to develop the necessary power waveform.

    This may be one of those things where if we started designing/building/installing small-scale VAWTs about a decade ago there may have been more incentives for inverter and battery manufacturers to enable VAWT connections through the same hardware, or could be something we could consider if Aus goes down the inverter/battery manufacturing path in the future.

    It could also be possible that people in the relevant technical positions have already considered all of the trade off's and they just don't add up to make small-scale VAWTs viable. This could be why we rarely hear about them. These things can always be subject to change though as technologies and manufacturing processes improve and change, and materials costs reduce.

  • Former News Limited CEO Kim Williams set to replace Ita Buttrose as ABC chair
  • Did a quick google search of his name, turns out his time at News Corp was limited, and it didn't end on good terms

    Early on Friday morning, News Corp Australia announced that Williams had resigned, just 20 months into the job. In a letter to staff, Williams thanked his colleagues, while admitting that "the issues encountered have at times been frankly really confronting". Confronting, indeed. In his short and tumultuous tenure, Williams had managed to not only alienate some of the company's most senior editors, most notably Chris Mitchell, editor of The Australian, and Paul Whittaker, editor of The Daily Telegraph, but infuriate Lachlan Murdoch, the man who had originally got him the job. "News Corp might be a publicly-listed company run out of Delaware, but there's never any mistake that you are working for Rupert," former Sunday Telegraph editor Neil Breen says. "It's a family company. You run it the Murdochs' way or you don't run it at all."

    The source of the above quoute: https://www.smh.com.au/business/companies/making-the-wrong-enemies-how-williams-was-cut-down-at-news-20130809-2rnsx.html Which was a Wikipedia citation: https://en.m.wikipedia.org/wiki/Kim_Williams_(media_executive)

    If he managed to anger them so much while he was employed by them, hopefully he can anger them even more de-shitifying the ABC.

  • Andrew Forrest calls for fossil fuel bosses' 'heads on spikes' in extraordinary outburst
  • You can use gas and other fossil fuels to produce hydrogen, but you can obviously use renewables too, amongst other methods. https://www.csiro.au/en/news/all/articles/2021/may/green-blue-brown-hydrogen-explained

    There has been a decent greenwashing campaign to try to disguise that a lot of hydrogen in the hydrogen mix is produced using fossil fuels. This is to try and enable greater use of hydrogen technologies over other solutions, eg EVs vs hydrogen cars, and keep money flowing to the fossil fuel barons. Unfortunately, we do need to be careful when we hear the blanket phrase 'hydrogen', rather than 'green hydrogen' specifically.

    https://www.forbes.com/sites/jamesmorris/2021/07/31/is-hydrogen-just-oil-and-gas-greenwashed/?sh=203dcf3fca04

    This article is from 2021 but I imagine the percentage of grey hydrogen in the hydrogen production mix is still up towards what is stated in the below quote. The context for the quote is in the lead up to the Tokyo Olympics, Tokyo was using hydrogen buses.

    Currently, around 95% of hydrogen production is what is called “grey”, including that being used at the Tokyo Olympics. It is made by reacting natural gas with high-temperature steam. This is the cheapest way to manufacture hydrogen but produces loads of CO2. In fact, it has been calculated that producing 1kg of hydrogen by this method will generate 9.3kg of CO2, which is actually more than the 9.1kg of CO2 produced by burning a gallon of gasoline, usually considered to have a similar energy value.

  • “Best place in the world to manufacture solar:” Can Australia break China’s PV grip?
  • I find it highly hypocritical that while the LNP were fear mongering against China they enabled them to become the global leaders in PV manufacturing which turned into a $50 billion annual return (I think that's the amount/rate the article cited) for them, which instead could have been flowing back into Aus.

    It's also would have created thousands of jobs, you know, the thing the coalition were constantly proclaiming they were always working to create. Unless they meant creating jobs by casualising the work force so everyone could work fewer hours for each employer but he the "opportunity" to have multiple, lower hour jobs.

  • “Best place in the world to manufacture solar:” Can Australia break China’s PV grip?
    onestepoffthegrid.com.au "Best place in the world to manufacture solar:" Can Australia break China's PV grip? - One Step Off The Grid

    SunDrive Solar is one of a handful of companies trying to establish a solar supply chain in Australia. Wyatt Roy, SunDrive's strategic advisor, says it's a global race – but Australia has a decent head start.

    "Best place in the world to manufacture solar:" Can Australia break China's PV grip? - One Step Off The Grid

    Australia is in a “global race” to stake a claim in the booming solar manufacture market – a supply chain spanning polysilicon, wafers, cells and modules that in 2021 was valued in excess of $US40 billion, an increase of more than 70% from 2020.

    At the moment, China has an iron grip on the market, with a share in all of the manufacturing stages of solar panels exceeding 80%. According to the China Photovoltaic Industry Association, the nation’s annual export of solar PV products surpassed $US51 billion in 2022 – a year-on-year increase of 80.3%.

    But can Australia muscle its way in?

    Wyatt Roy, a former member of the federal Coalition government – and minister for innovation under Malcolm Turnbull – believes it can. And in his current role of strategic advisor to Sydney-based PV innovator and manufacturing start-up SunDrive Solar, Roy is doing his bit to bring some of those global solar billions home.

    “You know, Australians love to talk ourselves down. But we literally invented modern solar technology,” Roy told One Step Off The Grid’s Solar Insiders Podcast this week.

    “I think last year, globally, there was about $50 billion of revenue in the solar industry, essentially using IP from Australia.

    “Unfortunately, very little value of that today is captured in Australia. As we know, 85 to 90% of the world’s solar panels are now manufactured in China. We’re very determined to change that.”

    2
    www.theguardian.com Indigenous communities overwhelmingly voted yes to Australia’s voice to parliament

    Polling catchments where Indigenous Australians form more than 50% of the population voted on average 63% in favour of the voice

    Indigenous communities overwhelmingly voted yes to Australia’s voice to parliament

    Australia’s voice to parliament Polling catchments where Indigenous Australians form more than 50% of the population voted on average 63% in favour of the voice

    17
    Hemp's potential to become major Australian agricultural industry for manufacturing building products
    www.abc.net.au The bulletproof plant undergoing high-velocity growth

    Hemp is one of the toughest plants on the planet and its potential uses range from bulletproof vests in the US to waterproof flooring for housing and other robust building products in Australia.

    The bulletproof plant undergoing high-velocity growth

    Brett Boag holds a small square of what appears to be ordinary wooden, 20-millimetre-thick chipboard.

    Only this material is heavier and startlingly stronger.

    Bulletproof in fact.

    During a recent test in the United States, it withstood even a burst from a high-powered AK-47.

    "It's phenomenally tough. We're making products that are even way in excess of the hardest hardwoods, very high impact resistance as well," said Mr Boag, who manufactures construction materials at a factory east of Melbourne.

    The products are made from hemp — one of the toughest plants on the planet. ...

    4
    Property values are tipped to reach a new high. Here's how much prices have risen in each capital city - ABC News
  • Considering

    Only 1% of Australian taxpayers own nearly a quarter of all property investments across the country, amid concerns over escalating rates of wealth concentration.

    Data provided by the Australian Taxation Office has revealed the extent of that concentration, with more than 7% of property investors – or 215,321 people – accounting for 25% of all property investments.

    That 7% also have three or more interests in investment properties across the country, with 1% of investors – or just 19,895 people – currently holding six or more investment interests.

    And that is only the top 1% of tax payers (which is only 7% of investors), I can't imagine what percentage of property investment is owned by the top 10% of tax payers.

    From: https://www.theguardian.com/australia-news/2023/jun/04/a-quarter-of-australias-property-investments-held-by-1-of-taxpayers-data-reveals

  • Decision to allow wider truck bodies paves way for electrification of big rigs in Australia
  • No doubt, but steel production produces a lot of pollution as well. It will be interesting to see the progression of green steel manufacturing tech and battery tech vs one another over time, even hydrogen tech. Its a tough choice because at any point we could see a major breakthrough in one of them making all the others relatively less cost and environmentally sound options.

  • Decision to allow wider truck bodies paves way for electrification of big rigs in Australia
  • So I've been reading up on this topic a bit more and I came across this

    Problem Australia’s interstate freight rail network comprises many long sections of single track. This restricts the number of train paths, reducing rail’s competitiveness with road, and hindering rail’s ability to meet growing freight movement demand. The interstate freight rail network needs to be enhanced to accommodate growth in the freight and passenger task, and improve efficiency and safety.

    From here, https://www.infrastructureaustralia.gov.au/map/advanced-train-management-system-implementation-interstate-rail-network

    On the bright side it is a proposal to upgrade a lot of the rail corridors to support more freight than we have currently. Though it was added in 2016 and is still only in the 'potential investment options' phase

  • Decision to allow wider truck bodies paves way for electrification of big rigs in Australia
  • Yeah true I didn't even think about batteries or hydrogen as diesel replacements for trains. The up to 6MWh of storage your article quotes for the short distance hauls sounds like a lot of storage, but I guess there is a considerable amount of surface area at the bottom of a locomotive that could be filled with batteries, and if each locomotive can't hold enough storage to pull the load, you can just add another locomotive to the train to make up the difference.

  • Decision to allow wider truck bodies paves way for electrification of big rigs in Australia
  • Unfortunately we don't have a rail freight network that either works well or reaches every township in Australia, and until we do encouraging the switch from ICE road haulage to EV road haulage is the best way to reduce transport industry emissions.

    For a lot of the more rural towns (or a least for the ones I know of) that do have rail connections, they are only accessible using diesel locomotives as there is no electricity network set up to power electric trains. So if we don't want to introduce more emissions from rail freight we would have to electrify the whole rail network.

    Realistically we should be building rail and allowing EV trucks to be more accessible, but Australia is a big place, building all that rail infrastructure will take time. A good stepping stone would be to build rail connections to regional urban centres and then have trucks distributing it to the surrounding towns, but even building that much rail will take time. And that's just the construction. The amount of time it would take to secure the land corridors for the rail would be considerable alone. AEMO have been having a difficult enough time securing land rights to build transmissions networks across properties

  • reneweconomy.com.au “Move faster:” Engineers join call to fast-track Australia’s net zero target to 2035

    Australian Academy of Technological Sciences and Engineering joins calls for government to be more ambitious with its energy targets – net zero by 2035.

    “Move faster:” Engineers join call to fast-track Australia’s net zero target to 2035

    The Australian Academy of Technological Sciences and Engineering (ATSE) has released a statement urging the government to be more ambitious with its energy targets – net zero greenhouse gas emissions by 2035.

    This is just one day after the Climate Council called on the government to do the same.

    “The science is unequivocal, the climate induced catastrophes are irrefutable. ATSE calls for leaders across every Australian sector to join us in making Australia a frontrunner amongst global peers, in setting an ambitious target of net zero greenhouse gas emissions by 2035,” said ATSE President Dr Katherine Woodthorpe.

    “To meet this ambition, with the Federal Government in the driver’s seat, Australia should prioritise upskilling our workforce, and develop and urgently apply evidence-based solutions across all industry sectors – particularly in energy, transportation, manufacturing, construction, minerals and agriculture.”

    The position statement highlighted six top priorities. They included developing new policy for the energy network, limiting waste, and increasing the electrification of the transport industry.

    “We’re the engineers and the applied scientists, we’re the ones where the rubber hits the road – who work out how to do this,” Woodthorpe told RenewEconomy.

    “And we’re saying it’s doable. It’s not easy. It’s a huge task, but it’ll set Australia’s economy up for the future in a world where climate will be a real issue.”

    3
    thedriven.io Decision to allow wider truck bodies paves way for electrification of big rigs in Australia

    Decision to allow wider trucks on Australian roads should pave the way for the electrification of heavy duty transport.

    Decision to allow wider truck bodies paves way for electrification of big rigs in Australia

    A major change to Australian design rules promises to be a “game changer” for Australia’s shift to electric freight transport.

    The new rule announced by the federal government will allow wider trucks on Australian roads, bringing the country in line with overseas markets and removing one of the key barriers to local uptake of heavy duty electric trucks, as most overseas-built models were just a few centimetres too wide to meet Australia’s previous standards.

    “This Safer Freight Vehicles package responds to direct calls from industry to increase the width limit of trucks and follows extensive public consultation and feedback,” said federal assistant minister for infrastructure and transport Carol Brown.

    “These changes will be a real game changer for industry, businesses and other road users, as they will save lives by adopting technology to reduce the likelihood of crashes, while also lowering freight costs and supporting better environmental outcomes.”

    The change increases the overall width limit from 2.50 to 2.55 metres for new trucks, as long as they are fitted with safety features such as side guards and devices to limit blind spots.

    42
    A final blow to fossil fuels? Environment embedded in grid rules
  • This actually seems pretty positive, but I guess also demonstrates how responsible Howard is for helping set in motion Australia's apathy towards environmental destruction, especially when it gets in the way of fossil fuel operations.

  • Lachlan Murdoch endorses Tony Abbott to join Fox Corporation board of directors
  • Possibly, but Turnbull did take over as head of https://murdochroyalcommission.org.au/ after K Rudd stepped down to take whatever diplomatic job it was he took.

    I think the Murdoch press had a big hand in Turnbull being replaced as PM, because he was actually considering implementing renewable energy policies https://www.theguardian.com/australia-news/2018/sep/19/turnbull-warned-rupert-murdoch-trying-remove-him-prime-minister

    That same day the Daily Telegraph had warned of “a toxic brawl” over energy policy. On Sky the night-time commentators Peta Credlin and Andrew Bolt ramped up their negative assessments of the national energy guarantee and of Turnbull himself.

    So he is probably butthurt for other reasons too

  • www.theguardian.com Lachlan Murdoch endorses Tony Abbott to join Fox Corporation board of directors

    Former Australian prime minister’s nomination revealed a day after Rupert Murdoch retired as chair of Fox and News Corp

    Lachlan Murdoch endorses Tony Abbott to join Fox Corporation board of directors
    12
    “Moving beyond baseload:” NSW turns to consumers and local storage to fill Eraring gap
  • Unfortunately 363GWh/60kWh = 6,050,000 cars, which goes to 18,150,000 cars if we only allow 1/3 of the battery charge be used, which is over 90% of the 20 million cars figure you mentioned.

    We also havent considered things like big industrial loads, which can have very large energy demands. I think it will be more likely they would require energy storage closer to their location, as drawing power from distributed sources across the entire grid would lead to a lot of grid congestion, as well as higher resistive power losses from transmitting greater distances. Having batteries closer to the large loads would be more similar to how the grid operates now, as the big industrial loads often get their own distribution transformers and lines connected to the transmission system so they don't negatively impact the distribution lines that provide population centres.

    I think it is also worth taking into account the evolution of energy storage tech as well. There are far fewer limitations (size, weight) for land based energy storage types, and there is a lot of research going into more sustainable batteries, but these may not be suitable for EVs for some time. https://cosmosmagazine.com/technology/energy/sodium-ion-batteries/

    You are right in the sense that as a significant percentage of the population owns a car, and therefore will forseably own an EV, it would be more sustainable to use that energy storage for the grid, rather than doubling up on energy storage devices.

    I'd be interested to know what Australia's annual energy use would be if the large industrial loads weren't considered. It may even be that EVs could cover a considerable percentage of residential and commercial energy demand.

    Either way, V2G will have an important role to play to completely electrify Australia and the rest of the state governments should pull their fingers out and allow it.

  • “Moving beyond baseload:” NSW turns to consumers and local storage to fill Eraring gap
  • Yeah I agree V2G will play apart in complete electrification of the grid, but I think other community or residential energy storage will be necessary too as EVs aren't guaranteed to be connected to the grid during peak solar generation times. They will be good for supply during peak demand times though, especially as demand peaks when everyone gets home from work, at which time they will be grid connected and can discharge when necessary, with the EV the recharging overnight while energy is cheaper.

    The only way I can think of making them a primary storage source is if absolutely every car park in the country has an V2G EV charger installed. That way the online time they would be disconnected I when they were in use. The complication I can see with this though is its hard to predict user habits so if the batteries discharge to the grid too much then the user will be limited to travelling shorter distances. A way around that would be to allow a maximum discharge amount be set I the EV, but this could lead to everyone setting it very high to limited energy is made available to the grid anyway.

  • "They’re gone:” Labor bins Kyoto carryover credits, shuts carbon accounting loophole
    reneweconomy.com.au “They’re gone:” Labor bins Kyoto carryover credits, shuts carbon accounting loophole

    Labor bins hundreds of millions of Kyoto “carryover” carbon credits, permanently removing the option to use them to shirk Australia’s climate responsibilities.

    “They’re gone:” Labor bins Kyoto carryover credits, shuts carbon accounting loophole

    Federal Labor has binned hundreds of millions of Kyoto “carryover” carbon credits, permanently removing the option for them to be used in to shrink Australia’s emissions reduction task and shirk its climate responsibilities.

    Federal energy and climate minister Cris Bowen announced the move on Friday, day two of the 10th Australasian Emissions Reduction Summit in Sydney, and confirmed it in person at the event.

    “My colleague, assistant minister Jenny McAllister, has signed the instruction which cancels them, they’re gone,” he told the summit on Friday morning.

    Australia’s surplus Kyoto credits, which had amassed to more than 700 million, have for years been a blight on Australia’s climate efforts, even when those efforts themselves amounted to the better part of nothing at all.

    In 2019, the Morrison Coalition government had sought to use the credits, created under the Kyoto Protocol through soft targets and convenient accounting loopholes, to further minimise its already paltry climate mitigation efforts.

    4
    reneweconomy.com.au “Moving beyond baseload:” NSW turns to consumers and local storage to fill Eraring gap

    NSW announces $1.8 billion, including a new focus on consumer energy resources, such as neighbourhood batteries, in its Energy Security Corp.

    “Moving beyond baseload:” NSW turns to consumers and local storage to fill Eraring gap

    The New South Wales Labor government has confirmed it will turn to consumers and local and shared storage as part of its plans to spend $1.8 billion to fast track its response to the proposed closure of the country’s biggest coal generator in two years time.

    The Minns Government on Wednesday outlined a $1.8 billion “boost” to help “rescue NSW’s energy transition”, and fill the gap that will be created by Origin Energy’s planned closure of the 2.88GW Eraring coal facility in August, 2025.

    The Australian Energy Market Operator has said that if government tenders for nearly a gigawatt of “firm power” and other renewable and storage projects are delivered on time, then there should be no breach of the country’s tight reliability standards.

    But NSW – fearing delays in project delivery and commissioning – has decided to fast-track other measures that could boost the capacity and reliability of the grid over the short term.

    The $1.8 billion package – announced at the site of a new community battery at Blacktown in western Sydney – includes a previously announced $1 billion to establish the Energy Security Corporation.

    This was largely seen as a vehicle to support pumped hydro storage, which hasn’t been able to compete with batteries even when the guidelines require eight-hour storage.

    ...

    6
    The unpaid super swindle: Labor’s industrial relations bill leaves biggest loophole open
    www.theguardian.com The unpaid super swindle: Labor’s industrial relations bill leaves biggest loophole open | Paul Karp

    Labor says non-payment of super should be in the same category as wage theft, but the ATO has never used existing criminal powers

    The unpaid super swindle: Labor’s industrial relations bill leaves biggest loophole open | Paul Karp

    Labor says non-payment of super should be in the same category as wage theft, but [they have not included it as a criminal offence in their industrial relations bill and] the ATO has never used existing criminal powers [as far as I could tell from the article the only powers the ATO has is fines, and fines mean next to nothing when a business has already declared bankruptcy]

    1
    In Australia 6,000kg of clothing is dumped in landfill every 10 minutes. This is the life cycle of polyester T-shirt
  • It would be interesting to know if returns were taken into account as well. I know these days certain brands will not only delivery the clothes you purchased to you, they will come and collect the clothes you decide you don't like. These clothes are sometimes repurposed but often just thrown out as well. The below article discussed this. I can remember seeing an article more specific to Aus a while back but this is the best I can find for now.

    https://www.theguardian.com/global-development/2023/mar/31/what-happens-when-we-send-back-unwanted-clothes

    Edit: spelling and grammar

  • Solar battery installation
  • As other people have said, this seems sus. I work for a PV, inverter and battery manufacturer and that flier has left a lot of things unclear. Like what brand the modules are from? what is the kW rating of the PV array? what is the throughput of the inverter (both ac and dc)? how many batteries? what the kWh storage of each battery?

    Even things like: what is the weatherproof (IP) rating on the inverter and battery, this will impact where you install it. What are the warranty periods on the solar modules and battery and inverter.

    If you were to even consider going with that you should definitely call and seek clarification on some of the above questions.

    If you are generally interested in getting some installed, a good resource to know is Solar Quotes (https://www.solarquotes.com.au/). It is run by an electrical engineer who doesn't seem to be a representative of any of the manufacturers, so it's pretty unbiased. He rates all the different manufacturers for each product too.

  • In Australia 6,000kg of clothing is dumped in landfill every 10 minutes. This is the life cycle of polyester T-shirt
  • I cant say for certain, but I can definitely speculate. I do know cotton requires a fair amount of water to grow, but I don't think it would use as many petrochemicals in the production. Though it would still use some, even if that is just in the supply chain through things like diesel for trucks and ships. The chemicals they use (like pesticides) may be derived from petrochemicals, but even if they aren't they could be damaging to the environment in many other ways. So I think polyester could have the greatest emissions of the two.

    I guess it could depend on the scale of production too. Like if we were to try and replace all polyester clothing with cotton, that could have a massive impact due to the amount of land and water needed to produce such quantities of cotton clothing and such. But at the same time, creating clothes out of plastic isn't going so well either.

    Ultimately we will probably still have to have some diversity materials for sustainable clothing production. It will really come down to a balance of land use, water use, what uses the least amount of chemicals, and probably a lot of other considerations.

  • In Australia 6,000kg of clothing is dumped in landfill every 10 minutes. This is the life cycle of polyester T-shirt
    www.abc.net.au In Australia, 6,000kg of clothing is dumped in landfill every 10 minutes. This is the life cycle of a polyester T-shirt

    Many of us are now dressed head to toe in plastic thanks to the invention of cheap and durable textiles like polyester. But the extent of the environmental impact from these garments might surprise you — we've tracked the life cycle of a polyester top from an oil field, through to when you chuc...

    Many of us are now dressed head to toe in plastic.

    A textile derived from the same non-renewable source as takeaway containers, has grown to make up more than half of the clothes bought in Australia.

    Polyester is durable, cheap, and dries quickly. It’s also easy to print patterns on.

    It’s commonly used by itself or as a blend with other textiles. It’s used for gym clothes and sports uniforms, party dresses, work attire, and many cheap fast fashion items.

    And every purchase is taking an environmental toll.

    One Australian study by RMIT found a single 100 per cent polyester T-shirt has a carbon footprint — from creation through to when you dump it in the bin — equivalent to 20.56 kilograms of CO2 emissions (CO2e).

    That’s equivalent to driving 140 kilometres. Buy just six tops, and that gets you all the way from Melbourne to Sydney.

    So, what’s involved in getting a T-shirt from a fossil fuel, to the one you might be wearing right now? Here’s its journey along the supply chain.

    26
    www.theguardian.com Pat Farmer runs up against former colleagues as 14,400km journey for Indigenous voice reaches capital

    Former Liberal MP, who is undertaking a six-month ultramarathon around Australia in support of the referendum, says he’s ‘incredibly disappointed this has become a political issue’

    Pat Farmer runs up against former colleagues as 14,400km journey for Indigenous voice reaches capital

    Former Liberal MP, who is undertaking a six-month ultramarathon around Australia in support of the referendum, says he’s ‘incredibly disappointed this has become a political issue’ ‐‐------------- The article is full of some really good quotes, including > “I’ve come across communities drinking bore water all their lives and then they need dialysis at an early age, kidney failure, when all they need is a filtration system on their water, but nobody’s listening – instead government is dishing out buildings for them they don’t need,” he says > “These people have been neglected for such a long period of time. Everything we have in place just isn’t working. It’s not addressing the early mortality rate, more Indigenous people in the prison system, health and infrastructure needs. It makes sense that we need a different approach.” > “I’ve heard things said by politicians that they want more detail – that’s just a lie, they know they create the detail, as part of the processes the Australian people will vote on,” he says. “Then it’s up to the politicians to nut that out in the parliament, what the detail is and then vote on it and get good policy in place. I’ve said to Coalition members, ‘Why not let the Australian people decide, then you can argue to the nth degree when it gets to the parliament’ – but they’re just being antagonistic.”

    Some compelling insight. Mad props to this guys!

    5
    There's a record breaking heatwave in the sea. Here is why it hit so hard and what it means
    www.abc.net.au With the world's oceans in the middle of an unprecedented heatwave, scientists are worried

    Climate scientists say natural "anaesthetics" have been masking the true impact of climate change for years but have now worn off. Here's why the world's ocean temperatures are at record highs and what they could bring.

    With the world's oceans in the middle of an unprecedented heatwave, scientists are worried
    6
    Property developer Dyldam's decade of debt, defective buildings and corporate reincarnation
    www.abc.net.au The family empire behind a succession of company collapses, defective buildings and unpaid tradies

    For years, Dyldam's string of company collapses has anguished apartment buyers, angered subcontractors, and frustrated liquidators.

    The family empire behind a succession of company collapses, defective buildings and unpaid tradies

    Dyldam was once a towering force. Its apartments still line the streets and light up the skyline of western Sydney.

    But for more than a decade, the Dyldam group has left a trail of misery behind it that includes bankrupt businesses, unpaid taxes, tradies denied payment for work they've done, suppliers ripped off, and anguished apartment buyers stuck with defective buildings — one built so badly it posed a hazard to human life.

    Time and again, a litany of potential law-breaking has been identified by those brought in to clean up the mess left by busted Dyldam companies.

    Yet, for years the corporate regulator, the Australian Securities and Investments Commission (ASIC), took no action.

    Only now are events finally catching up with a key figure in this property development empire.

    Courts in Brisbane and Sydney are hearing charges levelled against the director of Dyldam Developments, Sam Fayad, for criminal breaches of company law.

    The question is, why did it take so long?

    University of Sydney law school professor Jason Harris, an expert on insolvency, said it was symptomatic of a wider problem: ASIC's unwillingness, or inability, to pursue more than a tiny fraction of the many thousands of reports of misconduct it receives each year.

    "The sad fact about this is that the bad guys know full well that this is how the system works. So, if you're a director and you want to break the law … you're highly unlikely to be prosecuted," he said.

    "ASIC has to be far more effective in being seen to enforce the law because, at the moment, they're really the watchdog without teeth."

    Even now, the Dyldam empire lives on – allowed to trade, and develop shoddy buildings under a new name.

    --‐-‐‐----- The article then continues to go into further detail of the exploits of Dyldam group and how ASIC did nothing about it for years even though they received multiple complaints lodged against them.

    1
    www.abc.net.au National anti-corruption commissioner promises to be 'fearless but fair', revealing 44 complaints already received

    The National Anti-Corruption Commission commences with a full workload, as people waste no time making referrals, and the commissioner Paul Brereton makes a promise to take every complaint seriously.

    National anti-corruption commissioner promises to be 'fearless but fair', revealing 44 complaints already received

    Key points (from ABC article): -Forty-four complaints have been made to the National Anti-Corruption Commission since it opened its doors on Saturday -Commissioner Paul Brereton says he may hold public hearings, but will also call out people who seek to weaponise the NACC -The NACC will aim to complete 90 per cent of its inquiries within a year

    12
    InitialsDiceBearhttps://github.com/dicebear/dicebearhttps://creativecommons.org/publicdomain/zero/1.0/„Initials” (https://github.com/dicebear/dicebear) by „DiceBear”, licensed under „CC0 1.0” (https://creativecommons.org/publicdomain/zero/1.0/)WI
    Wiggles @aussie.zone
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