HIGH EFFICIENCY, LOW-COST ENERGY POWERING THE FUTURE NOW

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2 POWERING THE FUTURE NOW The promise of solar power has arrived. Amonix has the technology and real-world expertise to help utilities meet their energy demands with a reliable, low-cost supply of solar power. It s a green solution that makes sense for the environment and for the bottom line. Amonix is the leading designer and manufacturer of concentrated photovoltaic (CPV) solar power systems. Amonix technology requires no water in power production, uses land more efficiently, and produces more energy per acre than any other solar technology. With 21 years in business, 16 years of real-world CPV deployments, and seven generations of system development, Amonix is the proven best choice for utility-scale solar in sunny and dry climates. Amonix systems deploy quickly and offer high performance and high reliability, while delivering renewable energy at low production costs based on 29% system efficiency.* HIGH EFFICIENCY, LOW-COST ENERGY Business decisions for utility-scale solar applications often come down to whether or not energy production costs are favorable compared to traditional methods and in comparison to competing renewable technologies. In this competitive marketplace, Amonix systems offer high efficiency and a low cost profile. Seven generations of technology development have enabled Amonix to produce systems with higher power generation capacity and higher energy generation per acre deployed. The introduction of the world s highest efficiency multijunction cell has been an important aspect in the advancement of CPV technology, bringing utility-scale applications in sunny and dry regions into near grid-parity. The cost of electricity generation for any resource includes fuel, operations, capital equipment, finance costs and other factors. The lower overall cost of energy produced by an Amonix system results from several factors: free fuel from a renewable resource, the robust and utility-grade quality of Amonix s product, and the product s high reliability and long life expectancy. This unparalleled CPV experience coupled with highly skilled employees and a management team with deep expertise in solar technology, project financing, and high technology manufacturing makes Amonix the clear leader in the CPV industry. *31% module, 40% production cell COMPARISON OF EFFICIENCIES ACROSS THE SOLAR LANDSCAPE CELL (DC) MODULE (DC) SYSTEM (AC) CPV 40% 31% 29% High-Efficiency Silicon-Based PV 22% 19% 15-16% Thin-Film PV 12% 10% 7-8% Concentrated (Thermal) Solar Power 13-15%

3 UTILITY SCALE PRODUCTS Robust, reliable, utility-scale solar power. Amonix delivers the scale and quality of product that utilities need to positively impact their renewable energy portfolio requirements quickly and cost-effectively. Performance data proves our systems to be reliable and predictable, with minimal downtime. These robust systems have been assessed by third-party engineers as having a 50-year useful life when their multijunction cells are replaced at 25 years a task that can easily be accomplished in the field, due to the systems modular design. A FLEXIBLE UTILITY MODEL RELIABLE ENERGY DELIVERED BETTER USE OF LAND NO WATER IN POWER GENERATION Amonix recognizes the key compliance challenges that utilities face with respect to meeting their Renewable Portfolio Standards (RPS). Amonix products offer the most cost-effective and flexible means of generating renewable energy in sunny and dry climates. Distributed utility model The modularity of our CPV Solar Power System makes it the ideal solution for distributed utility planning. Utilities can strategically site their power plants at the distribution level, closer to local needs, easing burdens on transmission lines. And the power production profile of Amonix CPV systems allows capacity-constrained utilities to deliver critical daytime, on-peak power later into the afternoon. The siting advantages that the Amonix 7700 System provides are significant. Utilities have the capability to add capacity in large or small increments. Utilities can also locate solar power plants on smaller parcels of less-expensive land, with minimal site preparation, in an environmentally sound manner. Financial flexibility Today s investment environment encourages utility-scale projects in the range of MW, which are more easily permitted and are often easier to finance. Amonix provides utilities with the flexibility to meet their increasing needs for renewable power. Utilities face the laws of supply and demand daily in real time in order to meet their obligations to deliver electricity to a demanding market. That s why reliability of supply is so critical, and why Amonix is well positioned to help utilities meet demand with reliable, green energy delivered. Designed for utility-scale operation Amonix CPV Solar Power Systems are specifically designed for utility-scale operation in sunny and dry climates, where insolation is reliably coincident with peak demand. These seventh-generation systems feature dual-axis tracking to follow the sun and maximize energy production throughout the day. Predictable performance Amonix systems are highly predictable within a given weather profile. On-site performance data typically fall within 1% of Amonix model predictions. And that s a figure that utilities can take to the bank. Predictability depends largely on system reliability and routine maintenance. That s why Amonix designs their systems to be robust and to stand up to the rigors of a harsh environment, thereby minimizing downtime. Distinct advantage in hot climates Amonix systems have a distinct advantage in hot climates as compared to PV systems based on a lower thermal co-efficient at 0.16% / ºC. Siting is critically important for utilities considering the addition of solar power to their renewable energy portfolio. And some siting solutions are better than others. The Amonix 7700 CPV Solar Power System can be flexibly deployed in multi-pedestal arrays, so it can be used for installations of all sizes. Each unit installs quickly, and because the systems are pedestal-mounted, their impact on the local environment is minimal. Dual land use No grading or special site preparation is necessary. Installations can be made on industrial or agricultural land, even on sloped or irregular ground. In fact, it allows for multiple use of the same land once an installation is complete. Agriculture, grazing, and other uses can all happen in close proximity to the systems. There are numerous examples of these dual-use land projects. More energy per acre Amonix also provides higher efficiency of land use. It works out to about four acres per MW of rated capacity (DC), about half the space required for competing technologies. Even PV solar systems with advanced single-axis trackers require 10 acres per MW of rated capacity. In other words, the Amonix 7700 System delivers the highest energy production per acre, twice as much as any other solar technology. And for utilities, that may be the best land use of all. When examining alternative solar technologies, utilities also need to carefully consider the environmental, permitting and cost impacts of water consumption. For many utility-scale systems, this is an ongoing cost of operation and must be factored into the overall cost of energy production. But Amonix CPV Solar Power Systems require no water at all for the generation of power. This offers a significant advantage, especially in sunny and dry climates where water is in short supply. Competing solar technologies, like concentrated solar power (CSP), require a significant source of water on-site to support ongoing operation. How significant? According to public filings, an air-cooled, 500 MW CSP tower would use 125 acre-feet of water per year. Similarly, a water-cooled 500 MW CSP parabolic trough would require 3,200 acre-feet of water per year. Comparatively, the operational water requirement of an Amonix system is zero. The water requirements for cleaning the lenses of an Amonix CPV Solar Power System are minimal approximately 1 acre-foot per 25 MW (DC) per year in order to achieve maximum power production. This can easily be transported to the site in a water truck for routine maintenance. Quick to deploy Amonix CPV Solar Power Systems ship to site in 19 pre-assembled parts, allowing for installation of more than 0.5 MW per day. The single-column support pedestal reduces land preparation time and is as easy to install as a wind pedestal.

4 BEST CHOICE FOR SUNNY AND DRY CLIMATES Amonix CPV Solar Power Systems produce the most energy in sunny and dry climates. In general, Amonix systems are the most cost-effective in regions where the solar radiation averages six kilowatt-hours per square meter per day (6 kwh/m 2 /day) or more. With that in mind, all Amonix product development through seven generations of technology has been focused on optimizing systems for sunny and dry climates. This is why Amonix incorporated the world s highest efficiency multijunction cells into the overall system. This is why Amonix applied concentrating optics. This is why Amonix developed the MegaModule and the 7700 system. It is also why Amonix incorporated a robust, dual-axis tracker to follow the path of the sun as it moves across the sky. Together with the MegaModule design, the system provides the higher capacity that customers require, during peak periods of the day. Amonix CPV systems are the best choice for sunny and dry climates across the globe. Direct Normal Irradiance kwh/m 2 /day PROVEN BY THE NUMBERS 21 YEAR HISTORY Founded in 1989 to commercialize utility-scale solar power using CPV technology, Amonix is by far the most proven company in the CPV market. 16 YEARS IN THE FIELD Time in the field is the ultimate proving ground. Day after day in the desert, Amonix systems are proving their capacity for generating clean, renewable solar power. 7GENERATIONS OF SYSTEMS Amonix has continually applied technological advances and the knowledge gained from 16 years of real-world deployment to perfect our systems for reliable, practical, and bankable utility-grade deployment. No other CPV solar technology provider can say that. MORE THAN 17 MW DC DEPLOYED GLOBALLY. OVER 75% OF THE WORLD S SOLAR CPV SYSTEMS USE AMONIX TECHNOLOGY

5 MegaModule Design Amonix continued its leadership in technology development with the introduction of the MegaModule design in the mid-1990s. The integration of inexpensive concentrating Fresnel lenses, solar cell receiver plates, and a dual-axis sun-tracking structure into a single assembly is what makes the system modular, flexible and cost-effective. Amonix manufactures its MegaModule units at its 214,000 sq. ft. manufacturing facility in North Las Vegas, NV, USA. State-of-the-art robotics used in the MegaModule manufacturing process support high-volume production levels, improve manufacturing quality, and ensure a consistently reliable system. The factory-assembled units are shipped to the field for installation. Multijunction Cells In 2005, Amonix incorporated the world s most efficient silicon solar cell, at 27.6% efficiency under concentration. Then, introducing a true step change in efficiency from silicon CPV, the company began to bring the space-industry III-V multijunction cell down to utility-scale solar power. By replacing silicon solar cells with these multijunction cells, and by placing the modules on dual-axis trackers, Amonix has engineered their CPV systems to achieve maximum energy output. Using the world s most efficient multijunction cells in the 7700 Solar Power CPV System continues the company s tradition of improving efficiency and lowering costs of solargenerated electricity. These innovations have contributed to seven generations of system development, steadily increasing system capacity and decreasing the costs of solar energy production. No other organization operating in the CPV market space offers the development track record, field experience, and commercial success rate of Amonix. SOLAR PIONEERS Amonix, the recognized pioneer in concentrated photovoltaic technology, has distinguished itself as the leading concentrated photovoltaic R&D organization with integrated commercial manufacturing capabilities for large-scale systems. Through more than 21 years at the forefront of CPV research and development, Amonix has grown steadily into this leadership position. In the early 1990s, Amonix achieved a record 18% system efficiency with the development of its stable-back junction-point contact solar cell (26.5% cell efficiency). Since that time, the company has continued to pioneer the technologies and system innovations that would create a new model of utility-scale solar power in a class all its own. Solar Cell Development Utility Proofing System Development st Amonix HCPV System kW Amonix 44 MegaModules kW Amonix Stumpy kW Amonix 33 MegaModules kW Pilot Production Amonix 55 MegaModules kW Amonix 77 MegaModules kW Commercial Europe Amonix HCPV in in Spain Multijunction Transition Amonix 7700 Amonix kW 66kW ) 1) Manufactured and installed by by Amonix licensee, Guascor Foton

6 CPV TECHNOLOGY Amonix Concentrated Photovoltaic (CPV) Systems are recognized as the world s most powerful and efficient on the market. Through a combination of inherent advantages in the technology itself and the proprietary development of a unique, patented design, Amonix systems convert sunlight directly to electricity efficiently and cost-effectively. A Robust Technology for Long-Term Performance Amonix was one of the first to bring the space industry s multijunction solar cell technology down to earth. The company has been a pioneer in the application of concentrator optics, and has excelled in the deployment of a unique MegaModule system for utility-scale applications. This robust, factory-fabricated subsystem is designed for easy installation and field adjustability. It encompasses all the components for long-term, reliable dualaxis tracking. CONCENTRATOR OPTICS Concentrated Photovoltaic (CPV) systems make it cost-effective to generate utility-scale solar energy. Amonix applies inexpensive optics to drastically reduce the quantity of costly semiconductor material needed to produce each watt of electricity. In the Amonix system, Fresnel lenses made of the same acrylic used in aircraft windshields collect sunlight and concentrate it to 500 times its usual intensity onto very small, highly-efficient III-V multijunction solar cells. ONE THOUSAND TIMES MORE POWER By comparison, most one-sun, flat-plate solar panels must cover the entire surface with costly semiconductor material to collect sunlight. Because they don t use concentrating optics and highefficiency III-V multijunction cells, typical silicon panels would require semiconductor material twice the area of an entire Amonix 7700 System to provide an equivalent amount of power (under standard test conditions). In contrast, within the Amonix system, the III-V semiconductor material represents only 1/500th of the total system area. Ultimately, this means that Amonix power generation by semiconductor surface area is about one thousand times greater than that of one-sun flat-plate panels composed of silicon solar cells (standard test conditions). For thin-film cells, the difference is even greater. This enables a much lower cost of energy produced. BRINGING A POWERFUL TECHNOLOGY DOWN TO EARTH Amonix was one of the first organizations to bring III-V multijunction cell technology down to earth. Originally developed for space-based applications, III-V multijunction cells represent a step-change improvement in performance over their silicon counterparts and are the world s most efficient solar cell. Using three different photovoltaic materials in a single cell, these multijunction cells extract more energy from the range of wavelengths in sunlight. This enables them to produce a significant increase in voltage, while losing less energy to heat. As a result, they provide the solar industry s highest efficiencies. Under concentration, this can exceed 40% in volume production (over 41% in world-record demonstrations).

7 1709 Apollo Court Seal Beach, CA, USA Ph: amonix.com 2011 All rights reserved. Amonix, the Amonix logo, Powering the Future Now, and MegaModule are trademarks or registered trademarks of Amonix, Inc. Printed on paper with 55% recycled content (30% post-consumer) using soy-based ink. 03/11