Solar cell
in [Design]
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From: Don Lancaster on 18 Apr 2010 11:52 On 4/18/2010 8:41 AM, Dirk Bruere at NeoPax wrote: > On 18/04/2010 16:31, Don Lancaster wrote: >> On 4/18/2010 7:21 AM, Dirk Bruere at NeoPax wrote: >>> On 18/04/2010 08:02, eryer wrote: >>>> On 17 Apr, 21:14, Don Lancaster<d...(a)tinaja.com> wrote: >>>>> They also often fail to include the synchronous inverter costs, >>>>> which in >>>>> many situations will consume 150 percent of the value of ALL the >>>>> electricity sent through iit. And not using a synchronous inverter, of >>>>> course, is ridiculously more costly. >>>> >>>> Interesting...any link? >>>> >>>> About my first post, any suggestion? >>>> Thanks >>> >>> This is like saying that PC power supplies will dissipate more power >>> than the rest of the PC combined. If you want to see where the market is >>> going on converters, look to the PC PSU market and costs for a mature >>> and very similar example ie 5c a Watt and 80%+ efficiency >>> >> >> >> If a naive homeowner tries to buy a synchronous inverter for a 1500 watt >> system, its typical retail cost (plus shipping and installation, of >> course) will be around $2500. >> >> It thus gobbles gone all pv electricity sent through it and then some. >> >> There is no reason the $2500 device should cost more than $9. >> Except for subsidies. > > Actually, there is. > Charging what the market will stand. > Consumer ignorance > Solar Tech is an immature technology, by a long way. > > I was looking at a solar water heater (not PV) a couple of years ago. > The installed cost from most companies in the UK was around �1500. > My estimate of the manufacturing cost plus installation was about �300. > Most of which goes to the plumber. > > The cost of synchronous converters will drop like a stone when they are > being sold in the tens of millions through DIY stores. > Another emerging solution is to provide internal inverters at the panel level rather than the system level. It is insanely easier and cheaper to switch, say, fifty watts, than 5 kilowatts. -- Many thanks, Don Lancaster voice phone: (928)428-4073 Synergetics 3860 West First Street Box 809 Thatcher, AZ 85552 rss: http://www.tinaja.com/whtnu.xml email: don(a)tinaja.com Please visit my GURU's LAIR web site at http://www.tinaja.com
From: Andrew on 18 Apr 2010 12:14 <dagmargoodboat(a)yahoo.com> wrote in message news:94be2bb7-3879-4851-9931- = PV isn't economic in the US, where we get twice Germany's insolation, = yet it's economic there? What's their secret? Heavy taxes on everything else, standard european procedure. How about $5.5 per gallon of regular gasoline? -- Andrew
From: Dirk Bruere at NeoPax on 18 Apr 2010 12:21 On 18/04/2010 16:50, dagmargoodboat(a)yahoo.com wrote: > On Apr 18, 9:13 am, Dirk Bruere at NeoPax<dirk.bru...(a)gmail.com> > wrote: > > PV isn't economic in the US, where we get twice Germany's insolation, > yet it's economic there? What's their secret? World domination! They want to return to being the world's biggest exporting nation since they were overtaken by China last year. They are investing in dominating the solar business. -- Dirk http://www.transcendence.me.uk/ - Transcendence UK http://www.blogtalkradio.com/onetribe - Occult Talk Show
From: Dirk Bruere at NeoPax on 18 Apr 2010 12:22 On 18/04/2010 16:52, Don Lancaster wrote: > On 4/18/2010 8:41 AM, Dirk Bruere at NeoPax wrote: >> On 18/04/2010 16:31, Don Lancaster wrote: >>> On 4/18/2010 7:21 AM, Dirk Bruere at NeoPax wrote: >>>> On 18/04/2010 08:02, eryer wrote: >>>>> On 17 Apr, 21:14, Don Lancaster<d...(a)tinaja.com> wrote: >>>>>> They also often fail to include the synchronous inverter costs, >>>>>> which in >>>>>> many situations will consume 150 percent of the value of ALL the >>>>>> electricity sent through iit. And not using a synchronous >>>>>> inverter, of >>>>>> course, is ridiculously more costly. >>>>> >>>>> Interesting...any link? >>>>> >>>>> About my first post, any suggestion? >>>>> Thanks >>>> >>>> This is like saying that PC power supplies will dissipate more power >>>> than the rest of the PC combined. If you want to see where the >>>> market is >>>> going on converters, look to the PC PSU market and costs for a mature >>>> and very similar example ie 5c a Watt and 80%+ efficiency >>>> >>> >>> >>> If a naive homeowner tries to buy a synchronous inverter for a 1500 watt >>> system, its typical retail cost (plus shipping and installation, of >>> course) will be around $2500. >>> >>> It thus gobbles gone all pv electricity sent through it and then some. >>> >>> There is no reason the $2500 device should cost more than $9. >>> Except for subsidies. >> >> Actually, there is. >> Charging what the market will stand. >> Consumer ignorance >> Solar Tech is an immature technology, by a long way. >> >> I was looking at a solar water heater (not PV) a couple of years ago. >> The installed cost from most companies in the UK was around �1500. >> My estimate of the manufacturing cost plus installation was about �300. >> Most of which goes to the plumber. >> >> The cost of synchronous converters will drop like a stone when they are >> being sold in the tens of millions through DIY stores. >> > > > Another emerging solution is to provide internal inverters at the panel > level rather than the system level. > > It is insanely easier and cheaper to switch, say, fifty watts, than 5 > kilowatts. More resilient as well. No doubt someone has already patented the idea of bundling a tiny inverter with every PV module. -- Dirk http://www.transcendence.me.uk/ - Transcendence UK http://www.blogtalkradio.com/onetribe - Occult Talk Show
From: krw on 18 Apr 2010 12:23
On Sun, 18 Apr 2010 08:49:06 -0700, Don Lancaster <don(a)tinaja.com> wrote: >On 4/18/2010 3:20 AM, Paul Keinanen wrote: >> >> In any switchers with bipolar components, at least one junction >> voltage drop is lost in switch Vce voltage drops... > > >Not so with synchronous rectifiers. "With very low output voltage panels, some low Rds FETs may have to be used as switches and rectifiers." |