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本帖最后由 iq28 于 2009-9-25 19:35 编辑 .1point3acres留学申请版
啥时候才能形成很大产业阿, 下次经济腾飞就等renewable energy了. . visit 1point3acres.com for more.
-google 1point3acres
希望这次不要再让人们失望了.... 留学申请论坛-一亩三分地
Warald 发表于 2009-9-22 22:53  来源一亩.三分地论坛.
. 牛人云集一亩三分.地I'm just back from an American Solar Energy Society talk and don't have Chinese input now.. 1point3acres.com/bbs
. 牛人云集一亩三分.地
But this topic is interesting so let's do some simple discussions. Just for photovoltaics.-google 1point3acres
. visit 1point3acres.com for more.
The total installation of 2008 is about 5GW. The cost of mc-Si panels which are currently dominating the market is around ~$3 per watt. There are exceptions:. From 1point 3acres bbs
. From 1point 3acres bbs
a, sc-Silicon: much more expensive than mc-Si though efficiency is higher;. 留学申请论坛-一亩三分地
. visit 1point3acres.com for more.
b, a-Si/uc-Si and other silicon thin films: cheaper than mc-Silicon. For example AMAT claims Sunfab can make panels at cost of ~$1.5. But the market response is not good since efficiency is not reasonably high enough. The space of the residents' house roofs are limited so generally this type of panels can only be used in solar farms, public utilities, etc. which are not space sensitive. These will be the main topics I will work on for my PhD and I believe in coming years we players can make the cost below $1 while improving the module efficiency to around ~12%, which are essential for roof application. Major players are Q-Cell, AMAT, Orelikon, etc.
. 围观我们@1point 3 acres-google 1point3acres
c, CdTe and CIGS: Cheaper than sc-Si and mc-Si. Detailed costs various from manufactures. But most of the compounds players are still on the stage of R&D rather than mass production. So they don't count. There are two exceptions in this category which I have to emphasis. The first one is FirstSolar which is CdTe based. First Solar has production capability larger than 1GW per year and the cost is surprisingly as low as ~ $0.8 per watt, with which it can easily kick the ass of everyone else. It sell the panels for 3-5 times higher than the real cost. The second raising giant is NanoSolar. After boasting for one or two years NanoSolar finally began to ramp up mass production weeks before, with a capacity of 640MW (I'm not quite sure). We still don't know the cost, but there are things that are very attractive: roll-to-roll line (or say, print on flexible substrate) fabrication which can be extremely cheap compared with other high temperature, vacuum fabrication required by silicon thin films and CdTe, and also fits more installation conditions than rigid-substrate panels; efficiency as high as ~16% with average efficiency higher than ~11%. (Keep in mind that FirstSolar can only achieve around 10% on module level, and it's not flexible substrate and print!)
. Waral d博客有更多文章, 来源一亩.三分地论坛.
Sorry, it's a little bit long. So now we can see, suppose the average price is $3 per watt, then even without the wafer/ingot players (in mc/sc silicon solar field), the manufacture equipment players (especially for traditional semiconductor giants, it can be BIG business, one turnkey line sold by AMAT or Orelikon can easily pass millions of $), the balance of system players, the business has already been more than $10 billion of capacity.. 1point 3acres 论坛
. more info on 1point3acres.com
The problem is that these can never be achieved without the long-term governmental supports, ie. feed-in-tariffs, incentives, tax credits, etc. The threshold price below which solar electricity can crush traditional electricity is ~$1 Watt. We can see FirstSolar can earn real profits, and probably will NanoSolar. Then what left in US? SunPower can't even hold its own California market from SunTech. Spin-offs of Princeton, Gatech, Toledo, and universities in Colorado are no more than big pilot lines. They are jokes compared with Q-Cell, Suntech, Sharp and other big players... 1point3acres.com/bbs
.本文原创自1point3acres论坛
So now it's more a policy than a lucrative business. But the future is bright. With the production capacity and efficiency go higher the cost will fall faster. Also the critical wafer/ingot supply problem now no longer exists and the price of mc wafer/ingot has fallen by more than 70%. Now the panels in market are probably made by the wafers/ingots bought years ago so it's interesting to see what will the cost of panels be like when new panels made by cheap raw materials appear.. Waral d博客有更多文章,
. 1point 3acres 论坛
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