SOLAR energy into Electrical energy

Hi "cappri "

It is good idea to generate solar electrical power in large quantity. The system is yet not very successfully developed for large quantity in India due to high cost of solar cells and large area required to install solar panels. And the second difficulty is in maintaining the battery considering the short life span of battery.

"Green and gold energy" . " Green and Gold Energy Sun Cube 7 Provident Avenue, Glynde, 5070, South Australia, Australia" is a company manufacturing solar energy units producing electricity in large quantity. Their site is :-

http://www.greenandgoldenergy.com.au/ .you can contact them to get more details.

Please read the links given below for more information on the subject.

http://www.amonix.com/ http://peswiki.com/index.php/Directory:Concentrated_Solar_Power

9.4.08

You could also try contacting :

Michael M. Schmidt
Head of Public Relations

OC Oerlikon Balzers Ltd., Solar
T +41 79 834 03 74
michael.m.schmidt@oerlikon.com
www.oerlikon.com/solar

Regards,

Vinay Isloorkar

In India start with BHEL and CEL. Internationally, Google will be of help. If you need more help get back to me.

http://www.stirlingenergy.com/ is more powerful than you need, but it is interesting.

Thank you for the link. It is good reading material

I'm literaly out in a field at the moment (wonders of cellular) but a fewyears back used to deal with a company based out of one of the prarie states (Iowa?) And so named. They produce a thin film solar material limited in width but any length you want to go. They had a partnership at one time with a Montreal company producing roof panels that would blend in with standard roof covering materials. They are mostly known for their roll up panels that are environmentaly hardened for the Yachting industry and the Military. If they still do contract manufacture then they may be a viable solution. Via BBerry -_-"

Would the company be http://www.powerfilmsolar.com/index.htm ?

Hi,

Send me your complete specs and the quantity you need and the time frame when you need them.

I deal with factories in China and Taiwan.
Thanks,

Mac@adeptrep.com

First point is that the units you're looking for are in an interesting size range.

The energy you require needs to be in 5 kW increments, which is an instantaneous power output. Kilowatt•hours is the amount of energy a 5kW generator can put out over a full hour of continuous running.

Second, the cost is prohibitive for all stirling engines at this time, and most developers are targeting higher outputs than that, per unit, to be more attractive to power generators. This pushes potential customers with needs like yours towards that woefully inefficient photo voltaic technology for 5 kW blocks. You'll need a bunch of trackers to get peak power from all PV panels (and at 15% conversion efficiency & solar intensity at 1000 w/m² at high solar angles that happen typically only in summer in your hemisphere, you can calculate the land you'll need). Those panels will cost you $4-6 per watt (x 1000 for each kW) and then their output needs to be conditioned to AC sine waves.

S.E.S., the website linked by a previous respondent, is booked in capacity for the next 3-5 years. Good luck trying to get product from them sooner. Their units are also 25kW in size and about $150k & up.

The upshot is good luck finding a source right now. Try Stirling Thermal Motors (Washington State) and Sunpower (Athens, Ohio) for units in the neighborhood of your size range to see if they have products available right now.

<of 5kWH in huge quantity>

I say 'mind your TECH LINGO'!

You do not mean < 5kWH>.

Probably you meant 5KW

Depending on what you mean by 'huge quantity' my company would be very interested in designing a custom Organic Rankine Cycle hot gas engine to couple to our stock parabolic trough concentrating solar panels.

I am confident that given a sufficient quantity we can reach the $4/W(electric) installed price range for the entire system (exclusive of transportation, permits and other local considerations that I might be unaware of...).

Our basic engine is rated at nominal 200kw @1800 rpm or 400kw @3600 rpm (60 Hz synchronous speeds). A smaller 5kw/10kw version would be quite practical, while still operating at close to the thermal efficiency of the larger engine.

Each of our bi-panels consists of 12 parallel parabolic troughs ~6.8m in length by ~40cm in width. The array employs single axis tracking for each trough. Each bi-panel is rated to collect ~20kw(thermal) under diminished 'full sun' conditions of 800W/m² and a pair could drive the custom hot-gas engine-generator combo ~5kw(electric) generator with ease.

As you know parabolic trough concentrators are well developed and ideally suited for commercial to utility scale projects, tens or hundreds of kilowatts to the multi- megawatt range. Low end system efficiencies for CSP systems using plain steam regularly exceed 20% solar to electric. The necessary system efficiency to reach your goal with only 2 bi-panels is ~12.5%; is quite realistic and should be easily reachable.

A third (or more) bi-panel could provide extended operating hours into the early morning and late afternoon and beyond if thermal storage is added to the system. With 3 bi-panels only 8.3% efficiency is needed to meet goals, meaning more noon-time sun can be directed to thermal storage.

Drop me an e-mail: "cr4.globalspec [at] stxvi [dot] com" if you would like to discuss this proposal further. Thank you for your consideration.

10.4.2008

The concept sounds very promising. How close are you to grid parity? Or do you have to use this source of energy independently?

"grid parity" ... ? price parity? We can deliver energy ~ $90/MWH

The units operate grid-tied to take advantage of net metering, that is selling surplus power over the local demand back to the utility.

We do use synchronous generators, so they can operate independently from the grid i.e full stand alone.

The word "solar" is derived from the Latin word for sun, Sol, leading to the term solar system, or the system of the sun.Our particular solar system is believed to be more than 4.6 billion years old. It is home to the sun, nine planets which include ours, the Earth, 158 known moons that orbit those planets and countless other celestial bodies like asteroids, comets and meteoroids that exist throughout its vast space.Our solar system is comprised mostly of open and empty space. In fact, the largest body of matter in our solar system is the sun itself. Our sun contains 99.85% of the matter in our solar system.Our solar system had very humble beginnings. It was formed from a simple cloud of gas consisting of 75% hydrogen, 25% helium and 1% heavier elements. These three main elements condensed into the gas cloud which in turn continued to condense into solid objects. These objects later came to be called our Sun and the planets Earth, Mercury, Mars, Venus, Jupiter, Saturn, Neptune, Pluto and Uranus.

In addition to the sun and nine planets, our solar system also consists of small bodies. These small bodies are asteroids, meteoroids, comets, satellites of the planets, and interplanetary medium. Interplanetary medium is considered the gas and dust that floats around in our solar system. Comets are known as solar system "leftovers" or "dirty snowballs" – lumps of frozen gas and dust.

All you guys are very helpful but first, I should correct myself, it is 5kW and NOT 5kWH as has been pointed out by amongst you learned few.

Thanks Tick-tock. Your idea is very interesting. Tried to send you a mail on the link mentioned but it did not work. Instead, send me a mail on capriheatpipes@gmail.com

Any concerns on pollution with this?

Hi, Sorry about the e-mail ... SPAM magnet and all that... e-mail on the way...

No, there are zero pollution concerns. The working fluid is not a GHG, nor does it contribute to smog or ozone depletion. There is lube-oil in the crankcase, but you never have to change it, because it never gets oxidized or exposed to air.

date Mon, Apr 21, 2008 at 9:19 PM subject Re: tick-tock mailed-by gmail.com

hide details 4/21/08

Reply

Hi Samuel, We would be pleased to supply units in the approximate quantities mentioned. As a token of good faith, I would like to ask you to begin with a binding letter of intent. Simply put that you would commit to order/purchase a minimum quantity of units from us at a certain price per watt for a fully functional turnkey system, once we satisfactorily demonstrate a prototype system of the same basic parameters. This would give us a definite set of criteria to meet/exceed, and you would be able to witness the operation of a purposefully designed system for your needs. In exchange for this we would be in a better position to invest in the development of a small system, without having to pass on the initial R&D, tooling & mfg costs for a new engine product. Naturally the letter would be completely revocable if we fail to satisfy the criteria as judged be an independent third party. Mr. Alla he should feel welcome to pose any questions, we will make an effort to answer them presently, keeping you both in the loop. I hope we can move forward on this with all deliberate speed. Thank you,

--Paul

This was 14+ months ago...

It's been resent a few times, is there any light at the end of this tunnel?

Hi tick-tock,

Better we take our disussion to our personal mails. I will send you a mail.

With regard to questions on grid parity, I was looking at stand alone systems.

regards,

To TickTock: for the record, I believe "grid parity" refers to accommodating local area grid, as in hertz, voltage, etc--To Capri: Why just 5kW peak output? 5kW is barely enough to cover the "typical" household in the west, by the time all us conspicuous consumers turn on our computers, TV's, microwave ovens, washers and dryers, sex toys, etc.

9.7.09

Bull's Eye on Grid Parity. Thanks. I suppose better phrase would be Grid Compatibility.