Walmart Bets on Thin Film Solar

WMT Ushers in the Solar Future

By
Tuesday, October 5th, 2010

If you haven't looked at the solar sector in the past few months, here's what you missed:

3 month solar

As colleague Jeff Siegel and I said would happen, Chinese solar companies have emerged as global leaders.

They'll supply about 50% of the world's solar energy products this year.

For the most part, though, Chinese companies are focusing on traditional solar panels — the ones made of polysilicon and mounted on roofs.

But a new generation of solar technology is about to take root. And the Chinese don't have a stranglehold on it... yet.

It's called thin film solar

For several years now, thin film solar has been on the verge of commercialization. And now it's ready for prime time.

Thin film is made by putting one or more photovoltaic materials on a substrate like glass, plastic, or cloth. These materials are usually about 1 micron thick (a human hair ranges from 40 to 120 microns), so they are more easily managed than heavy panels and can be placed on a variety of surfaces.

From solar shingles to solar backpacks... the possibilities for this new technology are limitless.

And some very powerful companies are taking notice.

Save money. Live better.

Companies like Walmart (NYSE: WMT), for example, which in 2005 set a goal to get 100% of its power from renewable resources.

A few weeks ago Walmart announced it would begin installing two different types of thin film solar on its stores: cadmium telluride and copper indium gallium selenide (CIGS).

The company likes the technology because:

  • it can be installed on flat roofs, even in snow-prone areas

  • it's more efficient in fog and smog-prone locations

  • it can actually be incorporated into the building

  • it can provide 20%-30% of each store's electricity needs

The project will be one of the largest business installations of thin film solar, will help Walmart save money and reach its sustainability goals, and will help to quickly commercialize this still-young technology.

Something old, something new...

Walmart will work with two companies for the installations.

The cadmium telluride panels will come from First Solar (NASDAQ: FSLR). This technology has been available for years and is starting to gain high favor with utilities.

In fact First Solar just flipped the switch on the world's largest solar energy facility this week. The 80 MW Sarnia project will power nearly 13,000 homes.

(For all you solar detractors out there, it's located in Ontario — not exactly the warmest or sunniest of climates.)

The company is currently working on three other large plants in North America, and will install about 145 MW this year.

That'll be nothing compared to the 290 MW Agua Caliente plant it's starting to plan for California...

The plant will be as big as a natural gas-fired plant and require more than 5 million thin film modules.

By 2012, First Solar will ramp up its factories to be able to produce 2,200 MW of thin film per year. That's the equivalent of a large nuclear plant.

That stock is currently trading around $140, but a recent report by investment bank Piper Jaffray has assigned it a $200 price target.

But there's an up-and-comer trying to steal some of First Solar's thunder — an upstart named MiaSole.

MiaSole will be providing the CIGS panels for the Walmart project.

MiaSole is backed by $350 million in cash — most of which is from Kleiner Perkins — and is manufacturing thin film modules on a flexible stainless steel substrate.

It's trying to catch up to First Solar's production cost of $0.85 per watt and steal some market share from a sector that's expected to double by 2013.

solar phoneNew applications

More than 160 companies are hard at work trying to perfect thin film technology and applications for its use.

First Solar is by far the biggest, but some other established companies are entering the space: Sharp, Mitsubishi, Q-Cells, Bosch, and Shell are all in the hunt.

And it's not going to be just flexible panels for roofs...

Developments in dye-sensitized and other organic solar cells are showing just what this technology can offer.

From solar shingles to self-charging electronics (even indoors) to windows that produce electricity... This market is expected to eclipse $7 billion in annual sales by 2015.

So be sure to keep an eye out for recommendations as we sift through the 160 competitors to find the best profit opportunities.

Call it like you see it,

Nick Hodge

Nick


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Comments:

Comment by David on 2010-10-05
Hi guys - liked your article. Just one correction: the worlds largest solar energy facility is in Sarnia, Ontario. Just across the border from Detroit. Not in Vancouver! Otherwise good facts.
Comment by Nick Hodge on 2010-10-05
*Correction: The Sarnia plant is located in southern Ontario, not Vancouver. Apologies.
Comment by Lloyd Slaughter on 2010-10-05
Your article did not mention ENER. They were a pioneer in developing the thin film technology and have been producing the thin film panels from their United Ovionics subsiderary. What is your take on EMER.
Comment by Tom D Stevens on 2010-10-05
Hi, Nick!
The article came from Reuter's Vancouver office. It is north of Seattle, WA. Sarnia is in Ontario, as the news release said. It is across the Detriot river from Port Huron, MI. Ontario is a hotbed for wind projects, too. As well you might investigate the new mining ventures in Ontario on the north side of Lake Superior, straight north of Green Bay, WI. That is where they have found new copper & gold deposits as well as rare earth metals, all needed for our products from housing to cars to electronics. My grandfather told me there was more to find there.
Comment by Yimin on 2010-10-05
a.) All you say is correct, except there is one problem. Thin Film has 10% energy conversion rate versus 17-19% for Polysilicon. If Walmart put up Polysilicon Panel instead of Thin Film, they can generate 40% Energy use. The main reason why Walmart choose FIRST Solar's Thin Film is because the Walton family owns a big share of FIRST Solar stock.

b.) The polysilicon technology that Chinese companies use are also American Technology, they belong to GT SOLAR of New Hampshire and American Tech Giant Applied Material.

c.) Thin Film is making up only 10% of Solar Market. Look, if the Chinese feel THIN FILM has a future, they would have already invested BILLIONs.

d.) Using Thin Film Technology essentially double your area of Maintenance work and everything else. Yes they are lower cost, but so as REAL Estate if you use DOUBLE the Amount of Land Area, that too cost you.
Comment by Robert Freudenberg on 2010-10-05
The comparison of the gas and nuclear plants should be qualified. The rating stated is a maximum, based on ideal conditions, which is seldom if ever reached when rating the solar panels. The nights and cloudy days should be factored in to the comparison. In short, the gas and nuclear are 24-7 operations and the solar is not.

"That'll be nothing compared to the 290 MW Agua Caliente plant it's starting to plan for California...
The plant will be as big as a natural gas-fired plant and require more than 5 million thin film modules.
By 2012, First Solar will ramp up its factories to be able to produce 2,200 MW of thin film per year. That's the equivalent of a large nuclear plant."
Comment by Robert Lowe on 2010-10-05
Probably you are talking about "telluridium." "Telluride" is the name of a town and also a ski area in Colorado
Comment by Stack on 2010-10-05
Do you follow SunEdison, a solar division of MEMC Electronic Materials? MEMC stock has been in the basement for years. Do you expect the company will participate in the trend you foresee.

DS
Comment by Kevin on 2010-10-06
Nice article indeed. I have been following Natcore Technology of late and if they have the solution efficiencies are even higher than polysilicon. Nick? Have you investigated Natcore at all?
Comment by Carter on 2010-10-06
Poly silicon panels are always more cost effective when they track the sun than thin film elements.

I laugh at those individuals that install them by fixing them to their roofs. They are missing out on at least fifty percent of the power they could be making. They could have purchased fewer panels, a smaller inverter and had lower installation costs and a faster payback period.

But I guess the solar installers see money to be made. Sad.

Comment by R Wayne Rutland on 2010-10-07
Getting the power from acres and acres of rooftop collectors to the lighting fixtures is another interesting opportunity for innovation. I hope there are some entrepreneurs who see a project of this size as the chance of a lifetime. Introducing industrial LED lighting without the use of Inverters is one of the efficiencies that comes to mind.
Comment by Mike Harvey on 2010-10-07
As most have pointed out, Sarnia is in Ontario not on the west coast (stop cutting and pasteing other peoples errors Nick, your better than that!)

In order to have any real appreciation of the 'success', or future likelyhood of investment in these projects... how about some comments on 'how much'... it costs/it generates?

I've heard it cost about $400M (~$5/installed Watt), and heard the 20yr PPA is worth ~$0.80/kWhr... with some assumptions on the economics that could see profits of ~$30M-40M/yr over those 20 years...
???

oh, and the capacity factor of the '80MW plant' is 17%, or equivalent to a 13.5MW baseload station.
Comment by Mike Deabenderfer on 2010-10-09
I have [60] BP solar panels that fail when ambient temperature exceeds 90-degrees, delamination at the J-box. BP has replaced [10] and the remaining 50 continue to fail and now BP indicates they will not honor their warrantee. Contact w/bp for verification is case # 00014284. Mr. Mariano Rivas at Mariano.Rivas@bp.com. Thanks for your interest. Mike Deabenderfer
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