VentureBeat - Latest Comments in Secretive Silicon Valley company, OptiSolar, builds largest solar farm

Re: Secretive Silicon Valley company, OptiSolar, builds largest solar farm

Jdizzle Fo Shizzle — Mon, 21 Jan 2008 13:07:31 -0000

I wonder if these debates parallel those of the electricity debate when it was first discovered. "Oh the cost of running all those wires to our homes! I would rather stick to burning my kerosene lamp." Cost and efficiency will come down as mass usage increases. I think this is a step in the right direction and I hope our governments continue to fund these efforts.

Re: Secretive Silicon Valley company, OptiSolar, builds largest solar farm

R Johnsen — Tue, 08 Jan 2008 20:10:32 -0000

Heard Optisolar is building farms in Nevada and Spain as well as Ontario. Can someone tell us why oil would be backing solar farms?

Re: Secretive Silicon Valley company, OptiSolar, builds largest solar farm

jchace — Mon, 31 Dec 2007 14:54:49 -0000

I like to see this and am enjoying the discussion. I hope these large orders start to bring down the price of thin film. I look forward to going being able to order my PV by the rolled yard at $1.00/watt someday.(Am I dreaming?) As to the cost of construction and installation, This is getting cheaper too as simpler mounting structures are implementes and metal forming gets more efficient. All the costs of our usual generation, including enviromental totals including decommisioning and everything else all the way untill all the materials are back to the elements must be taken into consideration and that goes for solar too. How much is a shorter lifespan of the earths ecosystems from shortlsightedness worth? As for nuke, how much money will it cost to gaurd all that material forever? Pay now, or pay ??? orders of magnitude tomorrow.

Re: Secretive Silicon Valley company, OptiSolar, builds largest solar farm

Luke Macmichael — Sat, 04 Aug 2007 16:27:06 -0000

I live in Northern Ontario, and I'd love to see more of these plants everywhere. I wish I knew what there return on investment might be. I've got about a million dollars I'd love to invest in Solar farms if I can get a decent rate of return on it. I'd hope for at least 8% but 10-12% would be enough to get thousands of local investors on the solar bandwagon!!!!

Re: Secretive Silicon Valley company, OptiSolar, builds largest solar farm

S. Garg — Wed, 27 Jun 2007 15:37:49 -0000

Ontario is to be commended for its farsighted commitment, and Optisolar for snagging a huge sale without much fanfare. I would assume that Optisolar made some noises to the effect of expanding solar cell production in Canada, in order to clinch the deal. As they're known to be secretive, you will see that much later.

The cost of PV power today can't be expected to compete with decades-old polluting power sources. But its advantages in scalability (down to homes and cars), emissions (zero), reliability (no moving parts), distribution (Sun shines everywhere at no cost) and availability (billions of years from solar fusion) will trounce any other energy source. In time there will be economies of scale and new research (e.g. quantum dots) leading to a mature, competitive, worldwide PV industry.

Re: Secretive Silicon Valley company, OptiSolar, builds largest solar farm

JAYMIN PATEL — Thu, 21 Jun 2007 11:03:06 -0000

Our reruirment is we would like to colobration with foregin company with our field

Re: Secretive Silicon Valley company, OptiSolar, builds largest solar farm

Wen — Tue, 01 May 2007 04:01:44 -0000

Brian, I'm glad you got the taxpayers of California to subsidize your Twin Peaks solar roof and continue to get the electric utility customers of the state to subsidize it as well. You would think we don't have any homeless people in this state.

Re: Secretive Silicon Valley company, OptiSolar, builds largest solar farm

Brian McConnell — Mon, 30 Apr 2007 12:33:41 -0000

I can speak to the economics of large scale solar installations, but I retrofitted my home in Twin Peaks (known for being foggy) to grid connected solar. My electric bill last year was $300, with the new net metering schedule, it will be zero.

Before that I paid an average of $1,500-$2,000 per year for electricity. The system cost about $16,000 ($26,000 without rebates, etc). It will generate $45,000 to $60,000 of electricity over its 30 year warranteed life, and that's assuming rates don't increase at all over 30 years.

I am in the process of upgrading to solar heating which I expect will eliminate most of my gas bill as well.

The technology required to generate your own power is available, and it works great. I recommend solar electric to anybody who lives in a sunny climate. As unit costs decrease and installation becomes more plug and play, roofing contractors will get into this business, and adding electricity to your roof will become a no-brainer.

Re: Secretive Silicon Valley company, OptiSolar, builds largest solar farm

Gypsy — Mon, 30 Apr 2007 11:09:40 -0000

I'm told that this solar farm will be using up to 1 million (?) panels. If so, why would they not manufacture them right here in Sarnia instead of trucking them in from California? Talk about helping the environment!

Re: Secretive Silicon Valley company, OptiSolar, builds largest solar farm

Mark Wendman — Mon, 30 Apr 2007 10:13:42 -0000

Between Tom Benson & Mr. BudWhyzer (xlnt beer consumer) is found some reality.

Photovoltaic solar cells are far less costly to maintain than many other power generating means, as the repairs are very modest incremental costs and despite claims to the contrary, are easy to repair if needed.

Photovoltaics also have a rather simplified power circuitry and generating means, also making this less complex than other power systems. Simplicity makes it easy for smaller scale deployments and in no way detracts from advantages for large scale deployments. There is an advantage in easy incremental scaling.

Sorry it is less impressive than a coal fired power plant, a hydroelectric dam, or a nuclear plant, but solar PV power generation works and works well, it is just not absolute lowest apparent cost. (environmental burdens are hidden costs of many other sources of power)

Granted photovoltaics are not the cheapest means to generate power from sunlight, nor are they likely to become so just yet, as solar thermal / electric power generation seems to have a present lock in the ultimate in low cost solar generated electric power.

Yet there do not seem to be readily available small scale consumer / household solutions using solar thermal electric power generation, and this is largely due to a higher maintenance overhead compared to the non moving parts found in photovoltaics.

But in larger power installations, the mechanics(read maintenance issues) in solar thermal electric power generation are well justified - as in a size of scale for solar small to medium farms, or larger grid scale deployments. Quite attractive really.

As to solar power never being able to become cost competitive, I suspect solar thermal electric power generation is already there, or if not, is very close to cost of power of other grid scale generation, albeit that larger scale solar thermal electric deployments are rare so far.

In time, this is likely to change due to the attractive aspects of solar thermal electric power generation.

For further meaty explanations on solar thermal electric power technology, as a start please visit these 2 web sites :

http://www.nrel.gov/csp/tro...
http://www.nrel.gov/csp/

for some excellent information sources, albeit not restricted to electrical power generation alone.

Lastly there is the mother of all heliostat web pages

http://www.redrok.com/main.htm,

which covers all manner of information sources in solar collectors (not only for electrical power, but cogen and just thermal heating of even hot water) both small scale and large scale, with a bent towards the homebrewed small scale.

Solar photovoltaic power generation is practical now, albeit looming technology improvements of all kinds - cost reduction, and efficiency increases, will deepen photovoltaics market penetration, and solar thermal power will be heard of considerably more in the near future, due to its present large lead in cost effectiveness over photovoltaics.

Moreover, for simplicity in rooftop commercial peak rate abatement, both photovoltaics, and solar thermal electric power generation are practical now with PG&E's and other California Electric utility peak rates.

Even large scale batteries can arbitrage off peak to peak rates by nitetime charging for commercial buildings, albeit not best with lead acid batteries, and without advantages of going green...

Mr. Benson, as to implicitly hinting that nuclear is lowest cost, (or lowest maintenance costs) by your web site name, there are many hidden burdens that the taxpayer is hit with, that do not make your "inuclear" solution so appealing as you might seem to hint at.

Cleaner, less toxic and less risky technologies have their advantages which you are too quick to dismiss. Nuclear power electricity generation will and can improve, but so far the improvements are a tad far off relative to the ease of implementing solar power on modest but large scale.

Unless you happen to have the few $B in your back pocket, and a handy lead lined waste disposal location in your living room?

Re: Secretive Silicon Valley company, OptiSolar, builds largest solar farm

Bud Whyzer — Mon, 30 Apr 2007 01:42:07 -0000

Tom Benson,

"People in the electric power distribution industry…those who actually know what’s going with the electrical grid…actually laugh out loud when anybody mentions solar."

The reason that most people in the electric power industry "laugh out loud" is that they do not have a clue about alternatives, and have livelihoods that are highly dependent on the status quo. This is a basic case of FUD being generated by the guys in power. I guess I would do the same thing if I were in your position...

Best,

Bud

Re: Secretive Silicon Valley company, OptiSolar, builds largest solar farm

William Papolis — Sun, 29 Apr 2007 13:39:58 -0000

I, for one have done the calculations on solar power. You can check it out here ... http://www.solarfarms.org

Here are some points Tom (above) was missing ...

1. The electricity utilities already have paid or have sold power at rates greater than $.42 per kWh during peak demand. The reason? When local generators can't produce enough power to meet local demand they must buy at "market prices". Guess what, market prices at peak demand are astronomical! Here are some numbers you can look at for 2005. http://www.ieso.ca/imoweb/p...
Look closely at 2 things ...
- Hourly energy prices. For the weke of 2005-08-16 they were $.0917/kWh
- More importantly look at the settlement charges @ $.49/kWh

2. Peak demand for electricity matches nicely with peak output from solar power. When is peak demand? Summer time in the mid to late afternoon when those air-conditioners are blasting! If you remember the blackout a few years ago, that started around noon and the power started blinking off around 4 PM
http://en.wikipedia.org/wik...

3. When we pay for fossil fuel at the pump, is the environmental damage factored into our cost? I don't think so. Those costs are being pushed into the future. Another way to say this is, "we are subsidizing fossil fuel consumption". If you are thinking that $.42 kWh rate is a subsidy, then I guess we are leveling the playing field for solar power. That sounds fair.

4. Is solar power better in California? Yes, but we are only talking about 30% better than Ontario even though South Eastern California might get 2 to 3 times more sun. Check out this insolation map ... http://rredc.nrel.gov/solar...
You can see clearly that SE Cali gets way more sun than Ontario but how come it doesn't translate into way more solar power production? Here is the problem ... as a PV panel heats up above 25 degress, for each degree above 25 the efficiency of the panel goes down .5%. At 40 degrees your panels are 7% less effective. That makes a big diff on a panel that is only 15% effective to begin with.

To get back to Ian's point about "40 Megawatts of solar (at peak sunshine) is equivalent to around 5 Megawatts of coal in places like Canada".

Ian, I don't know where you got this number from, but you need to check out this article http://solarfarms.org/2007/...

A rated 40MW solar plant at peak sunshine with a 2-axis tracking system, is about 97% efficient and will produce about 37.2MW at peak. More importantly though you need to look at yearly averages.

The first thing you need to know about coal, is that an average coal plant only operates at 33% efficiency. It's nice to think that a coal plant will operate 24 hours a day 7 days a week, but sorry bud, that's not the reality. The thermodynamic efficiency of coal plants is reduced by such things as heat loss, bacteria, and algae in the cooling water, mineral scaling, breakdowns, maintenance, and whatever other problems happen when burning coal.

For a full comparison between equivalent sized coal and solar plants read that article above and follow the math.

The best PV panels are already at 20% efficiency, so comparing that to 33% of a coal plant, right now, we aren't that far off! Also, in the lab we got solar panels working at 40%+ efficiency. So that means it's just a matter of time before solar power becomes a large component of our energy use.

Bottom line, will solar power completely replace other fuel sources? No, we still need energy at night, but solar power can become a large and economically viable portion of our electricity generation.

Re: Secretive Silicon Valley company, OptiSolar, builds largest solar farm

Tom Benson — Sun, 29 Apr 2007 11:05:14 -0000

Grid-connected large-scale solar power is a total scam. People in the electric power distribution industry...those who actually know what's going with the electrical grid...actually laugh out loud when anybody mentions solar. It's the frequent target of mockery and derision at luncheons. The reason is simple: people have done the calculations a dozen different ways, and when you factor in maintenance, weather, cost of substructures (steel and concrete pads to hold panels, or the cost of installation on building roofs) cost of power conversion, etc etc. -- solar panel can never, will never pay for itself. It doesn't even replace the energy it takes to manufacture and install.

EVEN if you assume a 50% efficient solar cell that costs nothing, it still doesn't pay for itself, just because of hardware and maintenance costs.

Solar is a huge fricking joke. Lots of people are getting funding for this and will scam the public and make a lot of money. But in the end, 30 years from now, you may be guaranteed that solar power will still be exactly where it is now: nowhere.

Re: Secretive Silicon Valley company, OptiSolar, builds largest solar farm

Hack a Wii Admin — Sun, 29 Apr 2007 09:35:51 -0000

That is one heck of a solar farm.

Re: Secretive Silicon Valley company, OptiSolar, builds largest solar farm

Emperor — Sun, 29 Apr 2007 06:11:53 -0000

Here in Portugal the government is also investing heavenly in solar power and from what I heard it was the biggest in construction. I think this is very positive because the number of new projects is increasing at an amazing speed which means that more investors will be interested in the solarpower technology.

Re: Secretive Silicon Valley company, OptiSolar, builds largest solar farm

Jabberwocky — Sun, 29 Apr 2007 02:23:46 -0000

Alien: Your Right I'm Wrong good catch there.

Re: Secretive Silicon Valley company, OptiSolar, builds largest solar farm

eBusiness — Sun, 29 Apr 2007 02:21:26 -0000

If there was ever a time we needed to applaud the effort this is it.

http://www.ebizmba.com

Re: Secretive Silicon Valley company, OptiSolar, builds largest solar farm

Rexblade — Sun, 29 Apr 2007 01:51:29 -0000

At least they are trying and making an effort. If more people and companies were to hop on the refinement of the technology would follow.

Re: Secretive Silicon Valley company, OptiSolar, builds largest solar farm

Jon — Sun, 29 Apr 2007 00:55:58 -0000

some of us are missing the point. For me, trying to extract energy from all possible sources is the goal. That way there is some redundancy and we are not dependent on the few options that is currently available. Lets wean off of the middle east or any other nation that is fortunate enough to find oil in their back yard. Lets not be dependent on just coal, corn, etc...

Re: Secretive Silicon Valley company, OptiSolar, builds largest solar farm

ben — Sun, 29 Apr 2007 00:43:58 -0000

may i introduce you to http://tinyurl dot com/ ?

Re: Secretive Silicon Valley company, OptiSolar, builds largest solar farm

Xenko — Sat, 28 Apr 2007 21:28:35 -0000

"We will be laughing about this project in 5 years as the low efficientcy (yield) will turn the project into the equivalant of a graffiti-laden modern day innercity manufacturing facility."

It's not like it just stops producing electricity when something "more efficient" comes along. That argument is equivalent to those people who are always waiting for the "right time" to buy a computer, and never do because there is ALWAYS something better coming down the line. Eventually, you have to buy something, you just can't keep waiting for what the future will bring.

Re: Secretive Silicon Valley company, OptiSolar, builds largest solar farm

Rexblade — Sat, 28 Apr 2007 21:08:39 -0000

What if we were to build a massive solar array at the pole large enough to significantly reflect the suns rays.

Re: Secretive Silicon Valley company, OptiSolar, builds largest solar farm

Alien — Sat, 28 Apr 2007 20:42:50 -0000

I may be wrong, but isn't it, the earth is closer to the sun in northern winters, BUT, tilled away from the sun and that is why it is dark in the Artic, for a prolonged period of time. Just my 2 kilowats.

Re: Secretive Silicon Valley company, OptiSolar, builds largest solar farm

Jabberwocky — Sat, 28 Apr 2007 20:23:24 -0000

Ac tually Solar Farm is perfect for Canada especailly in Winter because the Northern 1/2 of the Earth is tilled towards the Sun so more Solar energy will be recieved. than in the Summer.

Re: Secretive Silicon Valley company, OptiSolar, builds largest solar farm

Tom Traynor — Sat, 28 Apr 2007 20:18:22 -0000

For the one comment about building a snow factory for Eskimos.... You may want to look at a map of where Sarnia is and compare it to the rest of the U.S. Sarnia is in the same latitude as California.