Cyrus
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tEJhnvX36hc&NR=1[/youtube] This is very amazing!
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The forum discussion centers on Bloom Energy's fuel cell technology, which aims to provide a cleaner energy alternative compared to traditional gas turbines. Participants debate the economic viability, efficiency, and potential market impact of the technology, with claims of up to 80% efficiency being contested. Concerns regarding the longevity and maintenance costs of the fuel cells are raised, alongside skepticism about the technology's revolutionary claims. The conversation highlights the need for independent research to validate efficiency claims and the importance of transparency in marketing such innovations.
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Assuming the fuel cell doesn't degrade. But at 1/8th the cost, you could just about buy a new one instead of overhauling it once a year!The lifecycle costs would be much lower.
Agreed, though the longevity and maintenance issue is also an assumption you are making. No, it doesn't have as many moving parts, but it does burn hot, so I'm not inclined to just accept that it will last as long or work with considerably less maintenance.Cyrus said:The question is if he is able to make fuel cell cheap.
He says he wants household units - which don't exist - to cost $3,000 for a 1 kW unit (which he says will supply a household, but really won't: they'll need at least 5 kW). It actually costs $700,000-$800,000 per 100 kW. $7,000/kw / (($700+1100)/2) = 7.8xIf so, it will be a breakthrough in mass-marketing the technology. This thing will cost about $3k per household. How do you figure it is only 1/8 the cost?
That doesn't paint a very rosy picture of the economic outlook.References:
[1] http://brainstormtech.blogs.fortune.cnn.com/2010/02/19/is-k-r-sridhars-magic-box-ready-for-prime-time/
Cyrus said:This is very amazing!
Topher925 said:No it isn't!
Welcome to five years ago.
Cyrus said:He started his company 8 years ago. He didn't invent this yesterday. So, if I showed you this 8 years ago, would your comment still apply?
Cyrus said:He started his company 8 years ago. He didn't invent this yesterday. So, if I showed you this 8 years ago, would your comment still apply?
And still, they haven't gone much below the 500-600C threshold set by the ionic conductivity of YSZ.Topher925 said:SOFCs have been around a lot longer than 8 years, they just haven't become so commercially viable and cost effective until about 5 years ago.
Gokul43201 said:And still, they haven't gone much below the 500-600C threshold set by the ionic conductivity of YSZ.
minger said:Have their been any independent research regarding the actual efficiencies of this thing? I seem to recall reading/hearing something from Google where they basically said, "We don't care how efficient it is, it's good PR."
I think I heard somewhere in that interview (watched it last week, sorry) that he was seeing ~80% efficiency.
If it's more efficient that the ~60% power plant -~8% transmission losses, then I'd might be on board. As everyone has agreed on though, price...
Topher925 said:I don't see how this could ever be better than your run of the mill nuclear power plant.
minger said:Have their been any independent research regarding the actual efficiencies of this thing? I seem to recall reading/hearing something from Google where they basically said, "We don't care how efficient it is, it's good PR."
I think I heard somewhere in that interview (watched it last week, sorry) that he was seeing ~80% efficiency. I'm not sure if this is for one component or fuel in/energy out, etc. The thing is that this thing produces CO2 just like any other fossil fuel generating device, so the whole "green" thing really only applies if it's more efficient.
If it's more efficient that the ~60% power plant -~8% transmission losses, then I'd might be on board. As everyone has agreed on though, price...
That would be very surprising. It is true for a small gas turbine (the type that would be competing with this product), which will run around 30% efficiency, but large gas turbine power plants tend to use a combined cycle (using the waste heat to run a steam turbine) and achieve around 55% efficiency. http://www.gepower.com/prod_serv/products/gas_turbines_cc/en/downloads/GEH12985H.pdfChi Meson said:Assuming that what the 60 Minute piece said is correct (not always a safe assumption), the boxes at the Google site used only half the natural gas compared to what would be used to provide the same power via the grid. That is at least the way I understood it.
Brian_C said:This thing really looks like a scam to me. There's a sucker born every minute.
More info here:
http://www.wind-sun.com/ForumVB/showthread.php?t=7078
Brian_C said:This thing really looks like a scam to me. There's a sucker born every minute.
Chi Meson said:I don't think it's a scam. The science is valid, it's more a case of whether or not the energy/money saved will make the initial investment worthwhile.
Well he's gotten a huge amount of investor capital on a promise of a revolutionary product. If it turns out his product is not fundamentally different/better than other similar products on the market, his investors will be pissed.Topher said:Its most definitely not a scam, although some things stated in the videos are a bit misleading.
TheStatutoryApe said:Wow. I almost thought it was a joke at the beginning.
I thought that wireless energy was pretty much a no go though? Too much waste.
I didn't hear a claim of breaking even financially. One of them said they had saved $100k in electrical costs, but that to me just means exactly what it said and nothing more. At $700k per unit, and with multiple units installed (and they didn't say how much they paid for fuel...), they are a long way from breaking even financially.Proton Soup said:it'll be interesting to see where it goes. I'm as skeptical as the guy in the video. so far, it sounds like Ebay, et alii, only save money with these because of government subsidies.
russ_watters said:I didn't hear a claim of breaking even financially. One of them said they had saved $100k in electrical costs, but that to me just means exactly what it said and nothing more. At $700k per unit, and with multiple units installed (and they didn't say how much they paid for fuel...), they are a long way from breaking even financially.