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Showing content with the highest reputation on 25/06/26 in all areas

  1. Yes that is true. The comment I was addressing was this: So lets see what is going on with mining vehicles and machinery. For many mines, getting renewable electricity for crushers, conveyors, processing plants, camps and offices is relatively straightforward. The really difficult challenge is replacing the huge diesel haul trucks, loaders, trains and other heavy equipment. Where the industry is today Processing plants Many Australian mines are already running a large portion of their fixed equipment on renewable electricity because the power comes from the site's solar, wind and battery systems. This includes: Crushers Conveyors Mills Pumps Processing plants Workshops and accommodation facilities These are the easiest loads to electrify. Haul trucks The giant haul trucks are the biggest diesel users. A single large haul truck can burn millions of litres of diesel per year. The major miners are now trialling battery-electric trucks: BHP and Rio Tinto are jointly trialling 240–250 tonne battery-electric Caterpillar haul trucks at Jimblebar in the Pilbara. Fortescue has developed its own high-power charging systems and expects its first operational 240-tonne battery-electric haul truck to enter service in 2026. Fortescue is probably the most aggressive 5 Fortescue's strategy is not just to build renewable power stations but to electrify the fleet as well. The company is: Building more than 1.4 GW of solar generation in the Pilbara. Installing large battery systems. Deploying battery-electric haul trucks. Operating electric excavators. Testing electric dozers, graders and loaders. Their goal is to eliminate fossil fuels from their terrestrial iron ore operations by 2030. Mining railways are also beginning to electrify. BHP has taken delivery of Australia's first purpose-built battery-electric heavy-haul locomotives for testing on its Pilbara rail network. These locomotives use large battery packs and regenerative braking. How much diesel is still being used? For most Australian mines today: Equipment Renewable/Electric Status Processing plants Often 50–100% renewable electricity Site buildings Often 50–100% renewable electricity Conveyors and crushers Often renewable-powered Light vehicles Increasingly electric Excavators Early electric deployment Haul trucks Mostly diesel, some electric trials Trains Early battery-electric trials Drill rigs Limited electric deployment So when you hear that a mine is "80% renewable", that usually means 80% of its electricity, not necessarily 80% of all its energy use. Diesel trucks can still account for a very large share of total energy consumption. This is one reason critics sometimes argue that mining companies overstate their progress, while the companies respond that the technology for replacing 250-tonne haul trucks is only now becoming commercially viable. The next five years will probably determine whether battery-electric mining fleets become mainstream in Australia.
    3 points
  2. Don't be ridiculous, it obviously means keyboard players 😁
    2 points
  3. Is that someone doing the ironing? Busy place.
    1 point
  4. It's obvious then. You're language-deficient, and need more training in obsolete languages and cultures. We'll book you in for a course in reading Sumerian cuneiform next week, so you can keep up, when they start using it for directions and nomenclature as well.
    1 point
  5. And this is the sign on the dunny door. It means one in all in and you can identify a anything you want.
    1 point
  6. Visiting the art gallery to see the Archies. Map they gave us is not all in my language.
    1 point
  7. Don’t confuse site power with total power which includes loaders, trucks etc.
    1 point
  8. Australia has quite a few mines that either run partly on renewable energy or are among the world's leaders in renewable-powered mining. Very few large mines operate on 100% renewables all the time, but several are regularly achieving 50–90% renewable penetration and occasionally reaching 100% for extended periods. Major Australian mines using renewable energy Mine Commodity Location Renewable Energy System Renewable Share Agnew Gold Mine Gold WA Wind, solar, battery, gas microgrid Typically 50–60%, up to 85–95% at times (Australian Renewable Energy Agency) Bellevue Gold Mine Gold WA Solar, wind and battery hybrid system Designed for ~80–90%; achieved 155 consecutive hours on 100% renewables (Reddit) Kathleen Valley Mine Lithium WA Solar, wind, battery, gas hybrid Around 60–80% renewable energy (The Australian) Mt Weld Mine Rare earths WA Renewable hybrid power system Reportedly exceeded 95% renewable share during one quarter (Reddit) St Ives Gold Mine Gold WA Large solar and wind project under development Expected to provide over 70% of site power (Reddit) DeGrussa Mine Copper/Gold WA Solar farm with battery storage One of Australia's pioneering renewable-powered mines (Australian Renewable Energy Agency) Weipa Mine Bauxite QLD Large solar installation Partial renewable supply (Australian Renewable Energy Agency) Tropicana Gold Mine Gold WA 24 MW solar, 24 MW wind, battery system Significant renewable contribution to mine power (Solar Now) The leaders Agnew Gold Mine Often regarded as the pioneer. It was the first Australian mine to use large-scale wind generation as part of a mine microgrid. The site combines: 18 MW wind farm 4 MW solar farm Battery storage Gas backup It typically obtains 50–60% of its energy from renewables and can reach much higher levels under favourable conditions. (Australian Renewable Energy Agency) Bellevue Gold Mine Currently one of the most ambitious renewable mining projects in Australia. The mine recently reported operating for 155 consecutive hours (over six days) entirely on renewable energy with diesel and gas generators switched off. (Reddit) Kathleen Valley Lithium Mine A good example of a new-generation mine being designed around renewables from the outset rather than adding them later. It uses a large solar-wind-battery system and has reportedly achieved renewable shares above 80% in some periods. (The Australian) An interesting pattern Most of Australia's renewable-powered mines are in remote Western Australia. That's because: Diesel fuel is expensive to transport. Many mines are off-grid. WA has excellent solar resources. Wind and solar can often generate electricity more cheaply than diesel generation. As a result, renewable energy is often adopted primarily for cost savings and reliability rather than environmental reasons alone. The economics can be very attractive for remote mining operations. (Australian Renewable Energy Agency) If you're interested, I can also list the major iron ore mines (BHP, Rio Tinto, Fortescue) and explain how far they have progressed toward running on renewable energy, because the Pilbara iron ore sector is currently undergoing a huge transition.
    1 point
  9. I can recall one wartime aviation hero, he survived the very worst of battle, and came home unscathed. Before he even went to War, his Anson and another, collided in mid-air, locked together, and he brought both crippled aircraft down to a safe landing, earning many kudos for his skill. Then, after returning from War with a DFM, he was sent to a training unit at Sale. But he collided with a bus on his pushbike in March 1944, and was killed. His name was F/O Leonard Graham Fuller.
    1 point
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