The Forum > General Discussion > Janus is doing Electric Trucking with battery-swap in 4 minutes, 33c / km when diesel is about 90c!
Janus is doing Electric Trucking with battery-swap in 4 minutes, 33c / km when diesel is about 90c!
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Posted by Is Mise, Wednesday, 30 November 2022 1:36:57 PM
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Hi Max,
Thanks for pointing out my error. What I was trying to calculate was the cost of a mwh of solar energy supplied from battery storage. From your supplied link the cost estimate is about $210 US, or between five and seven times the cost of nuclear. You might dispute the exact figure, but I think you would agree that it is far more expensive than nuclear. Overbuilding does not solve the problem, not least because the cheapest renewable power you get costs more than nuclear. Also, your claims of renewables are not estimated from actual operations. They are guesstimates and could be highly inaccurate. In contrast, the nuclear cost estimates are based on decades of operational data. As for your criticism of nuclear costs, note that the reason nuclear power is so cheap in the long run is because a nuclear power plant can last a very long time, over a century by some estimates. I wonder how long it will be before the penny drops and the public realise that renewable energy to power the grid is just a big con? Posted by Fester, Wednesday, 30 November 2022 8:09:03 PM
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Hi Fester,
this is now 6 years old but there's this? I forget what you're quoting but it's probably looking at the storage cost alone per mwh. That's fine, and a useful measure. Much like LCOE is. But as you and many here have correctly pointed out - LCOE is not the whole story! Imagine comparing building a grid to building a house. Imagine someone saying "Windows are cheaper than sandstone blocks - so we'll build the whole house out of windows." That's sort of what I imagined solar people to be saying months ago. I wanted to scream the punchline being something like "People who live in glass houses shouldn't throw stones!" But LCOE is the cost to the utility - not what the utility charges customers. That works against the people shouting "Solar is 4 times cheaper than nuclear!" AS IF that's the whole story. It isn't - and Blakers is not doing that. Blakers are saying it's 4 times cheaper, so we build a house with lots of windows, but also lots of wooden beams. The PHES are the wooden beams. So in the grid, this is overbuilding the solar, and backing it up with extra wind in the evenings (cheaper still!) and some PHES. Now, while the PHES on its own is expensive - it is used so rarely that the utility doesn't charge that all at once. Instead the storage is spread out through the megawatt hours to the customer. "The additional cost of balancing renewable energy supply with demand on an hourly rather than annual basis is found to be modest: AU$25–30/MWh (US$19–23/MWh). Using 2016 prices prevailing in Australia, the levelised cost of renewable electricity (LCOE) with hourly balancing is estimated to be AU$93/MWh (US$70/MWh). LCOE is almost certain to decrease due to rapidly falling cost of wind and PV." http://www.sciencedirect.com/science/article/pii/S0360544217309568 Posted by Max Green, Thursday, 1 December 2022 8:54:46 AM
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Oh, and another thing about powering cars or anything else with renewables. The critical considerations are the maximum amount of energy you need and the minimum capacity factor for your generators. For example, a one gigawatt nuclear generator can supply power reliably over ninety percent of the time, so you could cover demand with an extra ten percent generating capacity. With renewables you might get less than fifteen percent of capacity for periods, hence the need for multiples of supply.
Posted by Fester, Thursday, 1 December 2022 9:13:10 AM
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US to help Thailand develop nuclear power as part of global clean energy initiative
http://www.scmp.com/news/asia/southeast-asia/article/3200264/us-help-thailand-develop-nuclear-power-part-global-clean-energy-initiative "The White House said the help was part of its Net Zero World Initiative, a project launched at last year’s Glasgow climate summit in which the United States partners with the private sector and philanthropists to promote clean energy." Net Zero World Initiative http://www.energy.gov/articles/us-launches-net-zero-world-initiative-accelerate-global-energy-system-decarbonization Posted by Armchair Critic, Thursday, 1 December 2022 10:49:31 AM
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Printable solar cells are here for $10 per metre. This is just TOO cheap to resist!
Tradies will be able to carry these in the back of their electric cybertruck. If they're out working on a farm property, they can spread a whole bunch of them out on the ground and recharge their truck while they work. Many trades trucks will have electric charging ports of their own to recharge electric drills and leaf blowers and chainsaws etc. Printable solar - visit them in Lane Cove Sydney if you're here. http://youtu.be/tvYeq_livXc More here http://www.newcastle.edu.au/newsroom/featured/public-debut-for-printed-solar However, I’m guessing they’re cheap but inefficient. (I read this as a general comment on printed solar a while back, and have no information to this effect from Newcastle uni.) That is, they’d probably require a lot more area to produce the same power. Probably too much space required to generate enough power for domestic users - especially as we all start getting electric cars. But what if rooftop space was not an issue? What if we could still 'buy' solar way out west in the desert or rural areas where land is super-cheap - or even float solar panels on Warragamba dam catchments or other reservoirs like it? This is where I imagine an Energy Co-Op would shine! Renters or apartment owners in Strata Title who can't put solar on their own rooftops could already choose to buy into an energy co-op like the “Solar Garden” below. But imagine the co-op is buying super-cheap plastic printed solar. Imagine they get more ambitious and build a PHES scheme for overnight discounted electricity as well? (Pumped Hydro Electricity Storage.) If investors invest in the PHES - they might get cheap overnight power as well? How the existing Solar Garden scheme works:- 1. Become a member of Haystacks Solar Garden Co-operative. 2. Apply for a solar garden plot and transfer the plot fee 3. Switch your electricity retailer to the participating retailer – Energy Locals 4. Once the solar panels are generating electricity, receive credit on your electricity bill.” From Haystacks Solar Garden http://haystacks.solargarden.org.au/ Posted by Max Green, Thursday, 1 December 2022 11:18:23 AM
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It ain’t a bike but a horse.
Production: time and grass and water.
Can carry goods, pull an implement, power a machine, all fuel locally produced, can go through water that will stop 99% of vehicles, can supply milk (if the correct sex), can travel across country, is excellent for carrying people (usually one but can cary more depending on their size) completely recyclable, meat can be eaten or used as fertiliser, bones can be crushed and used as a filter material or fertiliser, skin makes excellent leather and the hooves make very good glue, intestines provide sausage skins in fact the whole is recyclable.
What’s more the seating arrangement is transferrable as is the steering gear and other controls
All in all beats the car hands down except for speed and weather proofing.