Solar panel efficency

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for references, or we can pop over to First Solar:

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" TEMPE, Ariz.--(BUSINESS WIRE)--Feb. 24, 2009-- First Solar, Inc. (Nasdaq: FSLR) today announced it reduced its manufacturing cost for solar modules in the fourth quarter to 98 cents per watt, breaking the $1 per watt price barrier. ?This achievement marks a milestone in the solar industry?s evolution toward providing truly sustainable energy solutions,? said Mike Ahearn, First Solar chief executive officer. ?First Solar is proud to be leading the way toward clean, affordable solar electricity as a viable alternative to fossil fuels.? First Solar began full commercial operation of its initial manufacturing line in late 2004. From 2004 through today, manufacturing capacity has grown 2,500 percent to more than 500 megawatts in 2008. First Solar?s annual production capacity will double in 2009 to more than 1 gigawatt, the equivalent of an average-sized nuclear power plant. These escalating volumes have been accompanied by a rapid reduction in manufacturing costs. From 2004 through today, First Solar?s manufacturing costs have declined two-thirds from over $3 per watt to less than $1 per watt. First Solar is confident that further significant cost reductions are possible based on the yet untapped potential of its technology and manufacturing process. "

--
Dirk

http://www.transcendence.me.uk/ - Transcendence UK
http://www.blogtalkradio.com/onetribe - Occult Talk Show
Reply to
Dirk Bruere at NeoPax
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Cadmium! Can they sell these in Europe, ROHS and all?

John

Reply to
John Larkin

They probably have a "do not lick" label for litigious US tourists.

--
Dirk

http://www.transcendence.me.uk/ - Transcendence UK
http://www.blogtalkradio.com/onetribe - Occult Talk Show
Reply to
Dirk Bruere at NeoPax

Uh... RoHs is a euro thing.

The US banned Cadmium in the industry years ago. More proof that the whole rohs thing was a huge waste of money for the entire world. A hit this industry did not need.

And there are exemptions, even for Cadmium, Mercury, and Lead. They are just not anywhere where contact is an imminent worry.

Reply to
Archimedes' Lever

Well, I do not mourn NiCd batteries. I'll be happy when lead acid goes the same way.

--
Dirk

http://www.transcendence.me.uk/ - Transcendence UK
http://www.blogtalkradio.com/onetribe - Occult Talk Show
Reply to
Dirk Bruere at NeoPax

NiCd has its place. NiMH certainly hasn't held up its promise.

Lead-Acid (and SLA) has its place too. No one has come up with a replacement for either one.

Reply to
krw

Lead acid batteries do not harm the environment.

Metallic form lead does not get into the water table, and it get recycled anyway. COMPOUNDS of lead and mercury, etc. harm the environment, not the metallic form.

Reply to
Archimedes' Lever

Does ROHS allow exemptions where contact is difficult?

There was/is concern over whether LEDs and microwave fets are allowed, what with the arsenic in GaAs.

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(I just hate those google links)

John

Reply to
John Larkin

Lead-acid batteries are full of lead compounds. That's how they work.

John

Reply to
John Larkin

IMHO someone should be seriously looking at Aluminium, as will as Lithium. There's plenty of the former available, and always will be. Not quite as good in theory, but ultimately perhaps a lot cheaper.

--
Dirk

http://www.transcendence.me.uk/ - Transcendence UK
http://www.blogtalkradio.com/onetribe - Occult Talk Show
Reply to
Dirk Bruere at NeoPax

That is just silly. It is a crystal and is tightly bound.

Reply to
Archimedes' Lever

If you read the wording of the ROHS rules, that doesn't matter. It also doesn't matter how little GaAs is in a product.

John

Reply to
John Larkin

that the

hit

=A0They

cement

How about Li-ion? is that bad or just too expensive? They don't seem to have much self discharge, and absorb almost all the energy used to charge them.

-Bill

Reply to
Bill Bowden

Li-ion, or Li Polymer, are rather expensive. I suspect that they will become even more expensive if they are widely adopted in electric cars since sources of cheap Li are very finite. That's one reason I'de like to see some progress with (say) Aluminium-Air batteries.

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or recharchables

--
Dirk

http://www.transcendence.me.uk/ - Transcendence UK
http://www.blogtalkradio.com/onetribe - Occult Talk Show
Reply to
Dirk Bruere at NeoPax

Too expensive and fragile for a lot of applications. They require constant monitoring just to keep them from catching fire. Sometimes it even works.

All battery technologies have their weak points. Overlap is needed so it's unlikely that any are going away, barring government intervention.

Reply to
krw

It is hard to find other types with as low internal resistance. This is critical in applications using high peak current during short periods at a time, without too much voltage drop.

An accumulator with several times the nominal capacity compared to the NiCd is useless, if it can not supply an output voltage higher than the drop out voltage of the device during peak demand.

Reply to
Paul Keinanen

Is that a problem ?

Reply to
Paul Keinanen

Yes. Peoples are animals. They follow whoever attracts them with bright toys.

VLV

Reply to
Vladimir Vassilevsky

Only if you're American, it seems

--
Dirk

http://www.transcendence.me.uk/ - Transcendence UK
http://www.blogtalkradio.com/onetribe - Occult Talk Show
Reply to
Dirk Bruere at NeoPax

Wanna bet?

Put up a bet in Vegas, I'll buy in against it. You'll lose.

Reply to
Archimedes' Lever

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