PV = photovoltaic (reflective process). The refractive process looks to be the coming state of the art! Is STP doing any R&D in this area?


TER: How does it differ?

RD: The majority of the solar systems in the market today are photovoltaic—it's a reflective, mirror-type technology where the sun's rays hit a reflective surface and bounce off into a collector shield above it. The IAS technology is very, very different in that they've created a technology using simpler, less expensive materials. It's easier and cheaper to mass-produce. Another unique attribute is that it is a refractive technology, wherein the sun's light passes through the panels instead off of them. They collect heat, which then heats up a water source. The hot water turns into the steam that propels a turbine. The turbine spins a generator, which creates electricity.

As a result, it's quite different from conventional solar and it's much, much cheaper—quite a bit less expensive to purchase. We're in the process of building the very first commercial plant using IAS technology. All of our engineering reports and research data indicate that this technology will be significantly more efficient than PV. We're quite excited about it.

TER: Is this a patented technology that IAS has?

RD: There are a number of patents on the technology, covering various facets from proprietary panels to the bladeless steam turbine. Several different patents have been issued, and several are pending on various other aspects of the technology and process.

TER: What are some of the companies in the flat panel technology?

RD: Suntech Power Holdings Co., Ltd. (NYSE:STP), First Solar, Inc. (NASDAQ:FSLR) ‎and BrightSource Energy, Inc. are a few. A number of companies that have good technology are doing very well. But it's almost an apples-and-oranges scenario in the solar market because IAS is quite a bit different. In our estimation it's much better alternative for utility-scale use. In addition to being less expensive to build and more efficient, it has a longer life and requires less maintenance. Plus, this technology has a lot fewer restrictions. For example, the way it's constructed and developed, you can put it on various types of terrain. You don't need costly grading plans prior to construction. It's easier to permit because it has a very low impact on the environment. We see a number of advantages.

TER: You say it's less expensive. Could you give us a relative cost comparison between IAS and photovoltaic technology?

RD: When you look at costs, you have to look at the entire system—not just the solar panel but the overall development, including the turbine and all of a project's components. From a turnkey perspective, the majority of the PV technologies sell somewhere in the range of $4 to $6 per watt. That equates to about $4,000 to $6,000 per kilowatt or $4 million to $6 million per megawatt. In most cases, the IAS technology is about half the cost.