MIT SOLAR DECATHLON PV TECHNOLOGY FOUNDAMENTALS PV MANUFACTURERS

MIT SOLAR DECATHLON PV TECHNOLOGY FOUNDAMENTALS PV MANUFACTURERS POWER SUPPLY GROUP/PRESENTATION MARCH 06 TABLE OF CONTENTS SOLAR POWER OVERVIEW 2 PV TECHNOLOGY BASICS 3 -13 PV MANUFACTURES-PROFILES 14 -24 AVAILABLE SOLAR PANELS 26 -50 PV PERIPHERALS 51 THE FUTURE NANOCRYSTALLINE SOLAR CELLS 52 -64

GENERAL OVERVIEW • PV was recognized as an important source of space power in the 1950 s, • Terrestrial PV development began in response to the 1970 s oil crises. • Concern for the environment, as well as global efforts to seek indigenous sources of energy, drives the investment in PV research and deployment. • Today, PV is a several-billion-dollar industry worldwide, with more than 520 MW of PV modules shipped in 2002. • These include large, multi-megawatt installations feeding into the utility grid, kilowatt rooftop systems supplying power to a home or business, and single 50 - or 100 -W PV modules on homes in developing countries. . Photovoltaic research progresses rapidly from the lab to the market. By Lawrence Kazmerski and Thomas Surek, National Renewable Energy Laboratory

PV technology basics Solar cells are semiconductor devices that produce electricity from sunlight via the photovoltaic effect. How PV Cells Work A typical silicon PV cell is composed of a thin wafer consisting of an ultra-thin layer of phosphorus-doped (N-type) silicon on top of a thicker layer of boron-doped (P-type) silicon. An electrical field is created near the top surface of the cell where these two materials are in contact, called the P-N junction. Sunlight strikes the cell, photons with energy above the semiconductor bandgap impart enough energy to create electron-hole pairs. A junction between dissimilarly doped semiconductor layers sets up a potential barrier in the cell, which separates the lightgenerated charge carriers. This separation induces a fixed electric current and voltage in the device. The electricity is collected and transported by metallic contacts on the top and bottom surfaces of the cell. When sunlight strikes the surface of a PV cell, this electrical field provides momentum and direction to light-stimulated electrons, resulting in a flow of current when the solar cell is connected to an electrical load Diagram of photovoltaic cell.

PV technology basics Applicable semiconductor materials> Cell Efficiencies • silicon (Si), • gallium arsenide (Ga. As), • cadmium telluride (Cd. Te), • copper indium diselenide (CIS), • hydrogenated amorphous silicon. There are significant differences between the best performance and theoretically predicted value for each material; closing these gaps is the subject of ongoing research (see figure).

PV technology basics In the case of a single-junction device, the efficiency of the solar cell, the ratio of the power produced, and the incident light power are limited. PV Cells, Modules, & Arrays Photons with energies below the bandgap of the material produce only heat. Excess energy above that needed to generate electron-hole pairs also produces heat. A multijunction device, in which two or more solar cells are stacked on top of each other, can exploit different portions of the solar spectrum. For example, a four-junction device with bandgaps of 1. 8, 1. 4, 1. 0, and 0. 7 electron volts (e. V) results in a theoretical efficiency of more than 52%. The multijunction approach, however, presents significant challenges in both materials preparation and device design. Photovoltaic cells are connected electrically in series and/or parallel circuits to produce higher voltages, currents and power levels. Photovoltaic modules consist of PV cell circuits sealed in an environmentally protective laminate, and are the fundamental building block of PV systems. Photovoltaic panels include one or more PV modules assembled as a pre-wired, field-installable unit. A photovoltaic array is the complete power-generating unit, consisting of any number of PV modules and panels.

PV technology basics How a PV System Works PV systems are like any other electrical power generating systems, just the equipment used is different than that used for conventional electromechanical generating systems. Depending on the functional and operational requirements of the system, the specific components required, and may include major components DC-AC power inverter, battery bank, system and battery controller, auxiliary energy sources and sometimes the specified electrical load (appliances). In addition, an assortment of balance of system (BOS) hardware, Including wiring, overcurrent, surge protection and disconnect devices, and other power processing equipment.

PV technology basics Why Are Batteries Used in Some PV Systems? Batteries are often used in PV systems for the purpose of storing energy produced by the PV array during the day, and to supply it to electrical loads as needed (during the night and periods of cloudy weather). Other reasons batteries are used in PV systems are to operate the PV array near its maximum power point, to power electrical loads at stable voltages, and to supply surge currents to electrical loads and inverters. In most cases, a battery charge controller is used in these systems to protect the battery from overcharge and overdischarge. In many stand-alone PV systems, batteries are used for energy storage. Figure shows a diagram of a typical stand-alone PV system powering DC and AC loads Diagram of stand-alone PV system with battery storage powering DC and AC loads.

PV technology basics Types of PV Systems How Are Photovoltaic Systems Classified? Photovoltaic power systems are generally classified according to: • functional and operational requirements, • component configurations, • how the equipment is connected to other power sources and electrical loads. The two principle classifications are grid-connected or utilityinteractive systems stand-alone systems. Photovoltaic systems can be designed to provide DC and/or AC power service, can operate interconnected with or independent of the utility grid, and can be connected with other energy sources and energy storage systems. 1. 7. 1 Grid-Connected (Utility-Interactive) PV Systems. Diagram of grid-connected photovoltaic system

PV technology basics photovoltaic hybrid system. Stand-alone PV systems are designed to operate independent of the electric utility grid, and are generally designed and sized to supply certain DC and/or AC electrical loads. These types of systems may be powered by a PV array only, or may use wind, an engine-generator or utility power as an auxiliary power source in what is called a PV-hybrid system.

PV technology basics The simplest type of stand-alone PV system is a direct-coupled system, where the DC output of a PV module or array is directly connected to a DC load Since there is no electrical energy storage (batteries) in direct-coupled systems, the load only operates during sunlight hours, making these designs suitable for common applications such as ventilation fans, water pumps, and small circulation pumps for solar thermal water heating systems. Matching the impedance of the electrical load to the maximum power output of the PV array is a critical part of designing well-performing direct-coupled system. For certain loads such as positive-displacement water pumps, a type of electronic DC-DC converter, called a maximum power point tracker (MPPT) is used between the array and load to help better utilize the available array maximum power output. Direct-coupled PV system.

PV technology basics crystalline silicon The conventional technology that supports more than 85% of today's PV market is based on wafers of crystalline Si. Production capacities are expected to more than double in the next three to five years, and the products are proven and accepted in the markets. Single-crystal ingots are pulled from the melt, or polycrystalline ingots are cast in a crucible that is consumed in the process. Technical advances include the growth of ingots as big as 300 kg, the growth of multiple ingots with melt replenishment, and the reduction of consumable materials and energy costs. Significant R&D effort has been focused on reducing defects, improving doping, and automating the growth process. Still, for single-crystal Si, the best commercial module efficiencies are only about 15%. How PV Cells Are Made The process of fabricating conventional single- and polycrystalline silicon PV cells begins very pure semiconductor-grade polysilicon - a material processed from quartz and used extensively throughout the electronics industry. The polysilicon is then heated to melting temperature, and trace amounts of boron are added to the melt to create a P-type semiconductor material. Next, an ingot, or block of silicon is formed, commonly using one of two methods: 1) by growing a pure crystalline silicon ingot from a seed crystal drawn from the molten polysilicon or 2) by casting the molten polysilicon in a block, creating a polycrystalline silicon material. Individual wafers are then sliced from the ingots using wire saws and then subjected to a surface etching process. After the wafers are cleaned, they are placed in a phosphorus diffusion furnace, creating a thin N-type semiconductor layer around the entire outer surface of the cell. Next, an anti-reflective coating is applied to the top surface of the cell, and electrical contacts are imprinted on the top (negative) surface of the cell. An aluminized conductive material is deposited on the back (positive) surface of each cell, restoring the P-type properties of the back surface by displacing the diffused phosphorus layer. Each cell is then electrically tested, sorted based on current output, and electrically connected to other cells to form cell circuits for assembly in PV modules. Image: A solar cell, made from a poly-crystalline silicon wafer

PV technology basics Si ribbon and sheet technologies, which avoid the cost and material losses associated with slicing ingots, are the first of the new PV technologies to be commercialized. About 6% of today's PV modules are made using these methods. Most notable are the edge-defined, film-fed growth process, the string ribbon process, and the Sifilm process (growth of a high-speed, continuous Si sheet of a variety of substrates). Cell and module efficiencies are similar to those for polycrystalline Si wafers from ingots —about 12% at best—with somewhat lower efficiencies for the smallgrained sheet materials. Ongoing incremental improvements will probably reduce manufacturing costs and increase module performance, keeping these technologies as the mainstay of PV markets for years to come. Thin-Film Photovoltaics Thin-film photovoltaic modules are manufactured by depositing ultra-thin layers of semiconductor material on a glass or thin stainless-steel substrate in a vacuum chamber. A laser scribing process is used to separate and weld the electrical connections between individual cells in a module. Thin-film photovoltaic materials offer great promise for reducing the materials requirements and manufacturing costs for PV modules and systems.

PV technology basics Pros and Cons of PV Photovoltaic systems have a number of merits and unique advantages over conventional power-generating technologies. PV systems can be designed for a variety of applications and operational requirements, and can be used for either centralized or distributed power generation. PV systems have no moving parts, are modular, easily expandable and even transportable in some cases. Energy independence and environmental compatibility are two attractive features of PV systems. The fuel (sunlight) is free, and no noise or pollution is created from operating PV systems. In general, PV systems that are well designed and properly installed require minimal maintenance and have long service lifetimes. At present, the high cost of PV modules and equipment (as compared to conventional energy sources) is the primary limiting factor for the technology. Consequently, the economic value of PV systems is realized over many years. In some cases, the surface area requirements for PV arrays may be a limiting factor. Due to the diffuse nature of sunlight and the existing sunlight to electrical energy conversion efficiencies of photovoltaic devices, surface area requirements for PV array installations are on the order of 8 to 12 m^2 (86 to 129 ft^2) per kilowatt of installed peak array capacity.

PV manufacturers> Spire BIPV Spire Corporation - Headquarters One Patriots Park Bedford, MA 01730 -2396 (USA) BIPV is Building Integrated Photovoltaics. It’s more than just mounting solar panels on a roof. It’s integrating solar electricity into the design of a building or structure so that the solar components also serve as structural or design elements. Toll Free: 800 -510 -4815 Phone: 781 -275 -6000 http: //www. spirecorp. com/spire-solar/turnkey-module-production-lines/index. php Fax: 781 -275 -7470 Email: email@spirecorp. com Spire offers SPI-LINE turnkey production lines for module manufacturing at production capacities ranging from a few hundred kilowatt up to 50 megawatts per year and beyond. http: //www. spirecorp. com/spire-solar/turnkey-module-production-lines/index. php Spire provides state of the art production lines for the manufacture of silicon wafers and solar cells.

PV manufacturers> Spire > considered leading in BIPV Roof Systems Ground Mounted Systems Pole & Structure Mounted Systems Spire installation examples

PV manufacturers > Spire > considered leading in BIPV Awning Systems Spire manufactured and retrofitted two BIPV systems for a commercial building that serves as a vital community center. The systems include a 25 -kilowatt roof tile system and a 7 -kilowatt awning system. Curtain Wall Systems BIPV panels can be mounted vertically on an exterior wall. An opaque panel can take the place of traditional siding. A transparent or semi-transparent panel can be mounted on an exterior wall, or on the roof, acting as a power-generating skylight. This allows the panel to be visible from indoors, providing partial shade and casting attractive dapple patterns. Spire BIPV system case studies

PV manufacturers >Spire > considered leading in BIPV Custom BIPV Spire manufactures its own BIPV modules, so it has the flexibility to produce custom and one-of-a-kind designs. These can be integrated into unique application solutions. In. Spire Solar Data Monitoring In. Spire systems are among the most user friendly monitoring systems on the market, available only from Spire Solar. In. Spire systems range in capability from simplistic energy performance data monitoring, to complex platforms that can be expanded upon for whole building commissioning. With real time data monitoring, the value of your PV system becomes a tangible asset available for instant use for educational or marketing purposes. * State of the art, user friendly technology * Touch screen monitors for desktop displays * Kiosks with integrated touch screen monitors for lobby or museum displays * Online data monitoring that is available from anywhere with Internet access This In. Spire graph shows the energy produced by several Spire solar systems during a one week period in January 2006. These systems are located in the northeast United States. In. Spire lets you easily monitor your own solar system. In. Spire Solar Data Monitoring BIPV systems enable architects and designers to develop customized photovoltaic applications, going beyond the typical installations afforded by standard module design. To learn how Spire has developed and implemented innovative solar solutions for its customers, read the Case Studies

PV manufacturers> Spire How much roof space do I need for a PV system? A typical PV system requires about 100 square feet for every kilowatt installed on a pitched roof, and up to 200 square feet per kilowatt on a flat roof. PV systems should be installed facing south for maximum electricity production. The capacity of a PV system is stated in terms of the number of watts, kilowatts, or megawatts it can produce in standard sunlight conditions. For example, in the city of Chicago, Illinois, U. S. , Spire has installed solar modules for which each kilowatt (k. W) of PV capacity produces about 1, 200 - 1, 400 kilowatt-hours per year, depending on the angle at which the panels are mounted. The electricity you purchase from the utility is measured in kilowatt-hours (k. Wh). Most single-family homes in the U. S. use 20 k. Wh or more per day. A refrigerator uses 1. 2 k. Wh per day and a computer uses 2. 4 k. Wh per 8 hour workday. Spire's in-house manufacturing provides exceptional flexibility to produce unique BIPV modules to meet almost any specifications and design requirements. Spire has extensive experience working through the US Green Building Council and working with architects, designers and builders to produce BIPV systems for integration into LEED-certified buildings. Let Spire produce your next custom BIPV modules. Contact Spire at pvsales@spirecorp. com to discuss your manufacturing needs. Spire general facts

PV manufacturers> Evergreen 138 Bartlett Street | Marlboro, MA 01752 -3016 USA | TL: +1. 508. 357. 2221 | FX: +1. 508. 229. 0747 www. evergreensolar. com * Each module is individually tested to ensure field performance meets or exceeds specifications. * Solar cells are matched to reduce internal losses and the possibility of hot spots. * Rugged, durable anodized aluminum frame makes for strong, stable mechanical mounting. * Industry standard EVA (Ethyl Vinyl Acetate) and Tedlar™ construction protects solar cells from mechanical and environmental stress. Advanced technology with promise for the future * String Ribbon™ polycrystalline solar cells outperform thin films and achieve comparable performance to bulk crystalline technologies while using half as much silicon. * The proprietary cell fabrication process is among the most environmentally friendly in the business. The power of PV * Photovoltaics (PV) provide clean, quiet, reliable electricity from sunlight. * No moving parts to wear out. * No emmisions - power that's good for the environment. * The Sun - a limitless, readily-available power source. Cedar Series Photovoltaic Modules

PV manufacturers > > LOCAL INNOVATIVE PV COMPANY Evergreen Solar and Q-Cells Announce Partnership with REC Leading Solar Silicon Supplier Joins Ever. Q Venture MARLBORO, Massachusetts, & THALHEIM, Saxony-Anhalt, Germany--(BUSINESS WIRE)--Nov. 28, 2005 --Evergreen Solar, Inc. (Nasdaq: ESLR), a manufacturer of solar power products with its proprietary, low-cost String Ribbon(TM) wafer technology, and Q-Cells AG, the world's largest independent manufacturer of crystalline silicon solar cells, today announced a partnership with Renewable Energy Corporation ASA (REC), based in Hovik, Norway. The world's largest manufacturer of solar-grade silicon and multicrystalline wafers, REC is joining Ever. Q, a strategic partnership between Evergreen Solar and Q-Cells that is currently building a 30 -megawatt solar wafer, cell and module manufacturing plant in Thalheim, Germany.

PV manufacturers> Evergreen The Company maintains strong ties to the Massachusetts Institute of Technology, including the active involvement of String Ribbon's inventor, Prof. Emanuel Sachs. The figure above illustrates the patented String Ribbon manufacturing process ongoing within the furnace shown to the right.

PV manufacturers> Sunpower Our Company headquarters and research and development facilities are located in Sunnyvale, California, the heart of Silicon Valley. Sun. Power Solar Sun. Power Corporation designs, manufactures and sells high efficiency solar cells and solar panels that generate electricity from sunlight for residential, commercial and remote power applications. Our proprietary all back contact silicon solar cell technology produces up to 50% more power per square foot compared to conventional solar cells. Sun. Power’s A-300 Solar Cell A-300 Sun. Power solar cells are unique because the metal contacts needed to collect and conduct electricity are on the back surface of the solar cells – away from the sunlight. This design eliminates reflective metal contacts on the front of the solar cell. In addition to improving cell performance, this design leaves the front surface with a uniformly black appearance. Our SPR-200 solar panels feature a unique, uniformly black design that many home and business owners prefer.

PV manufacturers LEADER IN EFFIENCY Sun. Power’s Technology Path Dr. Swanson (n 1988 Dr. Swanson founded Sun. Power to commercialize high-efficiency photovoltaic cell technology for use in solar concentrators) and his team at Sun. Power discovered that their solar cell technology designed for concentrators offered great advantages in other applications as well. In 2001, Sun. Power solar cells were used to power NASA’s Helios solar powered airplane to a world record powered-flight altitude of 96, 863 feet. The 22%-efficient lightweight solar cells were incorporated directly into the curved wing surfaces.

PV manufacturers LEADER IN EFFIENCY Superior Performance, Superior Aesthetics Sun. Power's high performance solar cells and solar panels offer both maximum power from your roof as well as a uniquely attractive system design. To review a slide presentation about our proprietary back contact solar cell technology, (see attached pdf)

PV manufacturers LEADER IN EFFIENCY Solar cells are semiconductor devices that directly convert sunlight into electricity. Our A-300 solar cell has a rated power value of 3. 1 watts and a conversion efficiency of between 20% to 21. 5%. Our A-300 solar cell is designed without highly reflective metal contact grids or current collection ribbons on the front of the solar cells. This feature enables our solar cells to be assembled into solar panels that exhibit a more uniform appearance than conventional solar panels.

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PV solar panel specifications BP Solar BP-4170 S, 170 Watt Solar Panel Unavailable in 2005 BP Solar BP 4170 S 170 Watt 24 V Monocrystalline Solar Panel The BP 4170 solar panel is designed to provide superior performance for residential, commercial, and industrial grid-connect systems. By increasing the diameter of the cell, performance is maximized while improving aesthetics. With time-tested monocrystalline silicon solar cells and installation-speeding polarized connectors, it provides cost-effective power for systems that demand premium module efficiency. Electrical Specifications Maximum Power: 170 Watts Nominal Voltage: 34. 7 volts Voltage at Pmax: 34. 7 Volts Current at Pmax: 4. 9 Amps Warranted minimum Pmax: 161. 5 Watts Short-circuit current: 5. 4 Amps Open-circuit voltage: 44. 0 Volts ***Unavailable in 2005*** BP Solar BP-4170 S, 170 Watt Solar Panel 1561 Your price: $999. 00 pad BP Solar BP-4170 S, 170 Watt Solar Panel Mechanical Specifications Dimensions (Lx. Wx. D): 62. 8 x 31. 1 x 1. 97 inches (1595 x 790 x 50) mm Weight: 34 lbs (15. 4 kg) Solar Cells: 72 cells in a 6 x 12 matrix connected in series Output Cables: MC Connectors RHW AWG# 12 cable with polarized weatherproof DC rated connectors Diodes: Three 9 A, 45 V Schottky by-pass diodes included Construction: Front: High-transmission 3 mm (1/8 th inch) tempered glass; Back: Tedlar; Encapsulant: EVA Frame: Rugged clear anodized aluminum alloy type universal frame Limited Warranty: 25 years Quality and Safety Listings ESTI, CE, TUV, UL Listed Note: These panels must ship via truck freight due to size. Please call or email for a shipping quote and to order.

PV solar panel specifications 170 watt-783. 00 160 watt 799. 160 watt 725. 150 watt 699. Most expensive 170 watt- 999. 00 125 watt 629. 00 125 watt 599. 80 watt 520. 50 Watt=354. 00 40 watt+353. 00 65 watt 457. 30 Watt 259. 00 60 watt 462. 00 20 watt 234. 00 Cheapest 10 watt Solar panel- 149. 00

PV solar panel specifications Evergreen Solar EC-115 -GD $539. 00 Evergreen Solar EC-102 -GD, 102 Watt Solar Panel $499. 00 Electrical Specifications Maximum Power: 115 Watts Voltage @ Power Maximum: 17. 3 Volts Current @ Power Maximum: 6. 65 Amps Open-circuit Voltage: 21. 5 Volts Short-Circuit Current: 7. 26 Amps No. of Cells: 72 Max. Series Fuse: 15 Amps UL System Voltage Rating: 600 V TUV System Voltage Rating: 800 V Mechanical Specifications Length: 62. 5"/1588 mm Width: 25. 69"/653 mm Depth: 1. 39"/35 mm Weight: 28 lbs/12. 7 kg Safety and Quality Tests IEC 1215 (IEC 503, ISPRA) Certified UL Listed, Class C Fire Rating TUV Safety Class II Certified CE Evergreen Solar EC-110 -GD, 110 Watt Solar Panel - Limited Supply Your price: $524. 00 25 year limited power warranty Temporarily Out of Stock Evergreen Solar EC-115 -GD, 115 Watt Solar Panel

PV solar panel specifications GE Energy Solar Panels GE Energy GEPV-110 -M 110 Watt Solar Panel $599. 00 GE Energy 165, 165 Watt Solar Panel $719. 00 GE Energy GEPV-072, 72 Watt Solar Panel Your price: $459. 00 GE Energy GEPV-050 -M 50 Watt Solar Panel $365. 00 GE Energy GEPV-065, 65 Watt Solar Panel Your price: $449. 00 GE Energy GEPV-030 -M 30 Watt Solar Panel $239. 00

PV solar panel specifications GE Energy GEPV-110 -M 110 Watt Solar Panel Electrical Performance Typical Performance Characteristics Peak Power (Wp): Watts 110 Maximum Power Voltage (Vmp): Volts 16. 7 Maximum Power Current (Imp): Amps 6. 6 Open Circuit Voltage (Voc): Volts 21. 2 Short Circuit Current (Isc): Amps 7. 4 Short Circuit Temperature Coefficient: m. A/? C +3 Open Circuit Voltage Coefficient: V/? C -0. 08 Maximum Power Temperature Coefficient: %/? C -0. 5 Maximum Series Fuse: Amps 15 Overall Physical Properties GE Energy's technologically advanced solar electric power products offer high quality and customer value. They are all based on crystalline silicon, the material of choice for efficiency and reliability for more than 25 years. Our single-crystal solar cells are among the most efficient commercially available today. We offer a full line of photovoltaic (PV) cells, solar modules which utilize a series of cells wired together and complete packages for residential, commercial and industrial systems. Designed for optimum use in residential, commercial and battery charging the GEPV-110 -M solar module contains 36 single-crystal cells connected in series, and generates a peak power of 110 watts at 16. 7 volts. applications, Length: 58. 1 inches (1, 477 mm) Width: 26. 0 inches (661 mm) Depth of Frame: 1. 4 inches (35 mm) Depth Including J-box: 2. 2 inches (55 mm) Connector Length (when applicable): 15. 0 inches (381 mm) Weight: 26. 1 pounds (11. 9 kg) Mounting Hole Locations Center Spacing: 25. 3 inches (643 mm) Edge Distance: 16. 4 inches (417 mm) Width Spacing: 24. 3 inches (616 mm) Mounting Hole Diameter: 0. 26 inches (6. 7 mm) Physical Design Properties Weight (Wind) Bearing Potential: 50 lb/ft (125 mph equivalent) Hailstone Impact Resistance: 1 inch at 50 mph (25 mm at 80 kph)

PV solar panel specifications Global Solar Energy Flexible Solar Panels http: //www. affordable-solar. com/affordablesolar/gse-solar-apps. html GSE Portable Power Pack 48 Watt 24 Volt Desert Camo Your price: $789. 00 GSE Portable Power Pack 48 Watt 12 Volt Desert Camo Your price: $789. 00 GSE SUNLINQ 12 Watt Portable Solar Panel $167. 00 GSE Portable Power Pack 55 Watt 12 Volt Desert Camo Your price: $869. 00

PV solar panel specifications Global Solar Energy Flexible Solar Panels GSE P 3 55 Watt 12 Volt Flexible Solar Panel Desert Camo In Stock and Ready to Ship Global Solar's thin-film photovoltaic technology is enabling solar power products to be portable, flexible, foldable, durable and lightweight. As a result we are able to create solutions for a wide range of military power requirements. The overall benefits of our military solar power products are to, enable extended missions, improve logistics by enabling field charging thereby reducing the number of batteries in the field and provide a significant cost reduction when compared to primary batteries. Global Solar Energy works closely with CECOM and the US Army's Rechargeable Battery Program. Portable Power Pack (P 3) The P 3 is a solar-energized power generator for mobile power needs. Incorporating solid state, thin-film, Power. FLEX™ solar technology, the P 3 provides an excellent choice for situations that require lightweight, durable, silent power. Re-charge batteries, power communication equipment and mobile electronics, plus reduce the battery logistic challenge with the P 3. It provides silent energy independence to the user. The P 3 Portable Power Pack is used worldwide to provide users an alternate power generator for charging lead-acid, Nickel Cadmium (Ni. Cd), Nickel-Metal-Hydride (Ni. MH) and Lithium Ion rechargeable batteries. The P 3 will enable extended missions, provide energy security, restore power silently and can provide power for remote, portable surveillance equipment. A primary battery can only be used once. Secondary batteries can be recharged several hundred times. Recent studies show that a P 3 solar charger pays for itself in fewer than fifteen recharges. That is equivalent to several hundred FREE BATTERIES! Twice the power to weight ratio of alternative solar generators, the P 3 is ideal for situations requiring power renewal to batteries and mobile electronics. The P 3 Portable Power Pack folds for easy transport and storage

PV solar panel specifications Applications Water pumping Communications Outdoor lighting Rural electrification Recreational vehicles Stand-alone or grid-connected AC applications Isofoton Solar Panels Isofoton 150 Watt 24 Volt Solar Panel $665. 00 Isofoton is the leading solar panel manufacturer in Europe and their panels are now available in the USA. Since its founding in 1981, Isofoton has grown to become the leading supplier of PV in Europe and is the 8 th largest PV manufacturer in the world. Their steadfast commitment to research and development has lead to the development of a reliable, proven monocrystalline cell that is then chemically textured with an anti-reflective layer and finally trimmed almost square for maximum power density. The finished cells are covered with tempered, antirelective glass that maximizes light transfer, providing a high quality finished module that meets the highest level of compliance with ISO, TUV, CE, and UL standards for photovotaic products. Approved by the California Energy Commission. Electrical Characteristics Nominal Voltage: 24 volt Maximum Power: 150 W Short-Circuit Current: 4. 45 Amps Open Circuit Voltage: 43. 2 Volts Maximum Power Current: 4. 35 Amps Maximum Power Voltage: 34. 6 Volts Physical Characteristics Cell type: 125 mm Mono Crystal Number of cells: 72 Length: 1224 mm/48. 19" Width: 1047 mm/41. 22" Depth: 39. 5 mm/1. 56" Weight: 17. 0 kg/37. 5 lb Type of Output Terminal: J-box with MC cables Certifications IEC 61215 Certified UL Listing, Class C Fire Rating TÜ– Safety Class II Certified CEC Rating: 134. 3 Warranty: 25 years Note: Minimum order of 4 panels. These panels must ship via truck due to size. Please call for a shipping quote and to order. There is a quantity price break if you are ordering 20+ panels.

PV solar panel specifications Kyocera Solar Panels d. Blue is ideal for installation on all types of buildings, from residential to large scale commercial systems. The stylish dark blue cells, combined with black panel frames, allow the panels to blend in with the buildings architecture while producing energy at exceptional efficiencies. The d. Blue panels are available in 190 -watt, 170 watt and 125 -watts panels. All of these feature Multi. Contact output cables, a heavy-duty box-style anodized aluminum frame, and an industry-high 25 year power output warranty. Applications Kyocera KC 200 GT, 200 Watt Solar Panel * Residential roof top system Kyocera KC 190 GT, 190 Watt Solar Panel Kyocera KC 200 GT, 200 Watt Solar Panel * Large commercial grid tie system $879. 00 KYOCERA has perfected its new surface treatment technology and is introducing it on a new line of panels named d. Blue, for its dark blue color. The newly developed treatment method processes multi-crystalline silicon cells in order to produce a surface texture that minimizes surface reflectance and maximizes output. The result is a maximum conversion efficiency of 15%, one of the highest conversion efficiencies in the polycrystalline panel industry. * Water Pumping Systems * High Voltage stand alone systems Specifications: Max Power: 190 Watts Max Voltage: 26. 1 Volts Max Current: 7. 28 Amps Dimensions (Lx. Wx. D): 56. 2"x 39"x 1. 4" Weight: 40. 7 pounds

PV solar panel specifications Independently Certified * The ASE-270/DGF-50 is independently certified to meet IEEE 1262, IEC 61215 and UL 1703 standards * It is also the only panel in the industry to receive a UL (Underwriters Laboratories) Class A fire rating Flexible Versions • A variety of wiring and framing options • are available upon request. RWE Schott Solar Panels ASE is possibly the finest module currently available on the market. 315 watt, 300 watt and 285 watt modules. Prices start are $4. 03/watt for cases of (20) modules. Call for availablity. Electrical Data Power (max): 270 Watts Voltage: 49. 5 Volts Current: 5. 45 Amps Open-circuit voltage: 60. 0 Volts Short-circuit Current: 6. 1 Amps Dimensions and Weights Length: 74. 5"/1892. 3 mm Width: 50. 5"/1282. 7 mm Weight: 107 (+/- 5) lbs/46. 6 (+/- 2) kg Area: 26. 13 ft sq/ 2. 43 sq meters Characteristic Data Solar cells per panel: 216 Type of solar cell: Semi-crystalline solar cells (EFG process) Connections: 10 AWG single conductor, stranded copper with Multi. Contact connector. Junction box comes with 6 built-in bypass diodes. Certifications and Warranty The ASE-270 -DGF/50 has been independently certified to IEC 1215 and IEEE 1262, UL 1703 (Class A Fire rating) The ASE-270 -DGF-50 comes with a 20 year power warranty.

PV solar panel specifications RWE Schott Solar Panels More Reliability * Bypass diode protection for every 18 solar cells in series, thus minimizing power loss, and mitigating overheating/safety problems * Advanced encapsulation system ensures steady long-term panel performance by eliminating degradation associated with traditional EVA-encapsulated panels * A weather barrier system on both sides of the panel protects against tears, perforations, fire, electrical conductivity, delamination and moisture * Patented no-lead, high-reliability soldering system guarantees long life and ensures against environmental harm should the panel break or be discarded Higher Quality * Each of the panel's 216 individual semi-crystalline silicon cells is inspected and power matched to ensure consistent performance between panels * Every panel is tested utilizing a calibrated solar simulator to ensure that the electrical ratings are within the specified tolerance for power, voltage and current * Panel-to-panel wiring loss is factored into the panel's labeled electrical ratings by testing through the panel's cable/connector assemblies ASE-300 -DGF/50, 285 watt $1, 334. 00 ASE-300 -DGF/50, 300 Watt Solar Panel $1, 404. 00 ASE-300 -DGF/50, 315 Watt Solar Panel $1, 329. 00

Today, building integrated photovoltaic systems are able to provide: # Solar electricity # Light management # Comfort # Effective shading # Glare protection # Thermal management # Innovative architecture Schott BIPV - Photovoltaics with ASI® Glass Insulated Facade Opaque Cladding The maximum size of ASI® Glass modules is 1. 2 m x 2. 4 m (~4’ x 7’ 10”)

PV solar panel specifications The HIT 190 panel has a cell conversion efficiency of 18. 5% and a panel conversion efficiency of 16. 1% that is significantly higher than conventional SANYO solar cells. SANYO Solar Panels Sanyo HIP-190 BA 3, HIT 190 Watt Solar Panel High conversion efficiency and lightweight design conserve space and weight. The outstanding conversion efficiency and high power output of the HIT 190 save approximately 20% of installation space. HIT 190 panels can be installed on narrow roof spaces which previously presented difficulties. In addition, with fewer solar panels, there is less weight on the roof. SANYO HIT 190 Specifications: Model Number: HIP-190 BA 3 Max. Power (Pmax): 190 Watts Max. Power Voltage (Vpm): 54. 8 Volts Max. Power Current (Ipm): 3. 47 Amps Open Circuit Voltage (Voc): 67. 5 Volts Short Circuit Voltage (Isc): 3. 75 Amps Cell Conversion Efficiency: 18. 5% Panel Conversion Efficiency: 16. 1% Warranted Minimum (Pmin): 171. 0 Watts PTC Rating: 178. 7 Watts Max. System Voltage: 600 Volts Series Fuse: 15 Amps Temp. Coefficient of Pmax (%/C): -0. 3 Dimensions: 51. 9" x 35. 2" X 1. 4" (1319 mm X 894 mm x 35 mm) Weight: 30. 9 lbs. (14 kg) Certificate: UL 1703 Class C fire rating HIT panels can withstand 1 inch diameter hailstones at 50 mph. Sanyo HIP-190 BA 3, HIT 190 Watt Solar Panel $975. 00

PV solar panel specifications Since 1959, Sharp has been harnessing the power of the sun to improve the quality of life. Today, we are the world's #1 manufacturer of solar cells. In fact, Sharp's high quality, Photovoltaic Power Generation Systems are used for everything from satellites to lighthouses, industrial applications to residential use. Sharp 208 Watt Solar Panel SHARP NT-185 U 1, 185 Watt Solar Panel $882. 00 $969. 00 Sharp's solar energy systems take advantage of the natural, inexhaustible resource of sunlight to generate electricity. No environmentally harmful compounds, no fossil fuel pollution, no global warming. Just clean, safe, reliable solar energy for living. Sharp ND-167 U 1, 167 Watt Solar Panel $779. 00 SHARP NE-165 U 1, 165 Watt Solar Panel price: $727. 00 Sharp ND-N 0 ECU, 140 Watt Solar Panel $669. 00 Sharp ND-070 ERU, 70 Watt Solar Panel Right Triangle $429. 00 Sharp ND-070 ELU, 70 Watt Solar Panel Left Triangle $429. 00

PV solar panel specifications Features Left and right triangular modules offer greater flexibility and greater integration for roofline aesthetics High-power module (70 W) using 21 square multi-crystal silicon solar cells with 13. 44% cell conversion efficiency Bypass diode minimizes the power drop caused by shade Black anodized aluminum frame and "L" hook design located along frame perimeter for easy integration with residential sytem mounting hardware Water white, tempered glass, EVA laminate, and a weather-proof film yield long-life modules while enhancing cell performance Nominal 7 VDC output is ideal for residential system applications Manufactured in ISO 9001 certified facilities 25 -year limited warranty on power output Sharp ND-070 ELU, 70 Watt Solar Panel Left Triangle Electrical Characteristics Cell: Multi-crystal silicon No. of Cells and Connections: 21 in series Open Circuit Voltage (Voc): 12. 43 Volts Max. Power Voltage (Vpm): 9. 98 Volts Short Circuit Current (Isc): 7. 81 Amps Maximum Power Current (Ipm): 7. 02 Amps Maximum Power (Pm): 70 Watts Minimum Power (Pm): 63 Watts Encapsulated Solar Cell Efficiency: 13. 44% PTC Rating (W): 61. 46 Watts Maximum System Voltage: 600 VDC Series Fuse Rating: 15 Amps Type of Output Terminal: Lead Wire with MC Connector Mechanical Characteristics Dimensions: 45. 86" x 38. 98" x 1. 81" (1165 mm x 990 mm x 46 mm) Weight: 26. 9 lbs/12. 2 kg Packing Configuration: 2 pcs per carton Sharp ND-070 ERU, 70 Watt Solar Panel Right Triangle Left and right triangular modules

PV solar panel specifications Shell Solar Panels Shell Solar SQ 175 -PC, 175 Watt Solar Panel $805. 00 Shell Solar 85 -P, 85 Watt Solar Panel Shell Solar SQ 165 -PC, 165 Watt Solar Panel Your price: $779. 00 Shell Solar 80 -P, 80 Watt Solar Panel $499. 00

PV solar panel specifications Shell Solar Panels Shell ST 40, 40 Watt Thin Film Solar Panel $276. 00 Junction Box The junction box provides a high quality, dust protected and splash proof IP 44 -rated housing. The housing contains a rigid connection block with screw terminals and by-pass diodes providing "hot spot" protection for the solar cells. Electrical Characteristics Rated Power: 40 watts Peak Power Voltage: 16. 6 volts Peak Power Current: 2. 41 amps Open Circuit Voltage: 23. 3 volts Short Circuit Current: 2. 68 amps Series Fuse Rating: 5 amps Minimum Peak Power: 36 Watt Mechanical Specifications A torsion and corrosion-resistant anodized aluminum frame ensures dependable performance, even under harsh weather conditions. Pre-drilled mounting holes are provided for ease of installation. Dimensions (Lx. Wx. D): 50. 9" x 12. 9" x 1. 3" (1293 x 328 x 35 mm) Weight: 15. 4 lbs Shell ST 40, 40 Watt CIS Thin Film Solar Panel Shell ST 40, 40 Watt 12 Volt Thin Film Solar Panel The Shell ST 40 solar panel is composed of a monolithic structure of series connected Copper Indium Diselenide (CIS) based solar cells. It can generate a peak power of 40 watt at 16. 6 volts. The Shell ST 40 solar panel has been designed for rural and industrial applications. The Shell Solar CIS/thin film modules deliver high power and reliable performance in all operational conditions backed by a 10 year warranty. The range is particularly suitable for low light level environments and where uniform appearance and aesthetics is important. Benefits * Exceptional performance under low light conditions, shade and high temperature tolerance that offers reliable power in adverse or changeable conditions. * Class leading efficiency and stable output power delivering reliable high performance for many years. * Highly transparent tempered glass delivering more power and ensuring high impact resistance and protection against hail, snow, ice, and storms. * Uniform appearance ideal for applications where aesthetics are an important factor. * 10 years research and over 3 years commercial manufacturing experience has been appllied to the development of our CIS thin-film range to ensure that our products have a long and reliable service life backed by a 10 year warranty. Qualifications and Certificates * UL-Listing 1703 * All Shell Solar Panels are produced in EN-ISO 9001 certified factories

PV solar panel specifications Sun. Wize Solar Panels Sun. Wize OEM 40, 40 Watt Solar Panel $269. 00 Sun. Wize OEM 20, 20 Watt Solar Panel $165. 00 Sun. Wize SW 90, 90 Watt Solar Pane Sun. Wize OEM 10, 10 Watt Solar Panel $115. 00 Sun. Wize SW 85, 85 Watt Solar Panel

PV solar panel specifications Uni. Solar FLEXIBLE Solar Panel Uni. Solar FLX-32 Flexible 32 Watt Solar Panel $275. 00 Specifications Rated power: 32 Watts Battery Voltage: 12 Volts Typical Amp Hours/Day: 12 Bypass Diode Included: Yes Blocking Diode Included: Yes Length: 55. 77" Width: 16. 7" Weight: 4. 7 lbs. Cable Length: 8 ft Warranty on Power Output: 5 yr How are Panels Connected to an Electrical System? Each panel comes with 8 ft. of tinned wire with a 2 -pin SAE-connector and is packaged with a 2 ft fused battery cable. An extension cable of 10 feet is also available. Typically the solar panel is connected directly to the battery. It can also be connected to any point on the electrical system where 12 volt is present. If a charge controller is used, it is placed in the line between the solar panel and the battery. Bypass diodes are connected across each cell, allowing the modules to produce power even when partially shaded. Blocking diodes are included within each potted junction box (edge connector) to prevent battery discharge into the module. The cell assembly is sealed in flexible an durable weather resistant polymers that provide longlife and high reliability.

PV solar panel specifications Uni. Solar UNI-PAC 30 - 34 Watt Foldable Flexible Panel $729. 00 Uni. Solar UNI-PAC 15 - 15. 5 Watt Foldable Flexible Panel $595. 00 Unique and Durable The unique design of the UNI-PAC™ features a lightweight construction without glass or fragile crystalline to break, crack, or add on extra weight. The tough nylon fabric covering allows the unit to be folded to a convenient book size, for easy storage and transport. The UNI-PAC™ 10 offers dual voltage charging for 12 V and 24 V, the UNI-PAC™ 15 and the UNI-PAC™ 30 are for 12 V charging. The UNI-PAC™ was designed to meet military requirements for durability, performance and reliability. Tefzel (by Du. Pont) serves as a strong, long-lasting front cover. Individual solar laminates contain by-pass diodes, making the UNI-PAC™ solar chargers tolerant of severe shadow or partial covering. Charging rate and voltage can even be adjusted to meet specific needs. Dimensions & Specifications Rated Power: 34. 0 Watts Operating Voltage: 17. 6 Volts Operating Current: 1. 9 Amps Open Circuit Voltage: 26. 0 Volts Short Circuit Current: 2. 4 Amps Size, Folded (Lx. Wx. H): 17" x 2" Size, Deployed: 55. 9" x 33. 9" Weight: 4. 7 lbs

PV solar panel specifications * Kaneka Solar Panels Model Nominal Power (W) OC Voltage (V) SC Current (A) Voltage in mpp (V) Current in mpp (A) Weight (kg) 13. 7 Dimensions (mm) GEA / GSA 60 92 1. 19 67 0. 9 990 x 960 x 40 Certifications and Qualifications Kaneka 60 Watt Solar Module Highlights: * Thin-film amorphous silicon panel * Superior performance under high temperature * High shade tolerance * MC Connectors * Black frame * Dimensions 39" x 37. 8" GEA GSA - IEC 61646 - Safety Class II equipment - CE mark UL Listed - CEC registered *25 Year Power Output Warranty GEA/GSA PV module will maintain more than 80% of minimum rated power for 25 years (based on data from silicon PV modules installed over a month under conditions of 25ºC, A. M. 1. 5 and 100 m. W / cm 2). Kaneka 60 Watt Solar Modules $269. 00

PV solar panel specifications Yingli YL 80 80 Watt Solar Module Yingli makes high efficiency polycrystalline solar modules. Power tolerance is a respectable 5% so you can be assured you will be receiving at least 95% of the wattage specified. Modules are made with tempered high transmission glass with antireflective coating, EVA encapsulant, TPT backsheet and aluminum frame with predrilled holes for mounting. Water proof junction box contains cord grip connectors, bypass diodes and barrel sleeve connector for use with special pinout connectors (available with 10’ USE 10 ga. below). Warranty is 25 years. Modules larger than 65 watts are packaged 2 per shipping box.

PV solar panel specifications R 15 -1200 Rollable Solar Charger Iowa Thin Film Technologies Because Power. Film® integrated solar panels (thin film on plastic) are developed and manufactured with a proprietary roll-to-roll process, by Iowa Thin Film Technologies, they are truly rollable unlike other thin film technologies that are only somewhat flexible. Power. Film® solar panels are monolithically integrated which eliminates the need for damage-prone manual connections of individual solar cells. Power. Film® is made of silicon, a natural resource in abundant supply. Also Power. Film® performs well in diverse enviroments, including hot sun, and does not suffer from wasted over-voltage. Cadmium Free. Direct Power 12 V systems can be directly powered with Power. Film® Rollable Solar Panels. As with any solar technology, the solar panel power output must be greater than the power consumption of the 12 V system. Technical Specifications Operating Voltage (V) 15. 4 Operating Current (Amps) 1. 2 Weight (lbs) 1. 9 Rolled Dimensions (in )) 12 x 4. 25 x 4. 5 R 15 -1200 Rollable Solar Charger $274. 00 Unrolled Dimensions (in) 12 x 73

PV solar panel PERIPHIRALS specifications Zomeworks Universal Trackers Universal* Track Rack Sizes: UTR 020 - 20 Sq. Ft. Module Space UTRK 040 - 40 Sq. Ft. Module Space UTR F 64 - 64 Sq. Ft. Module Space UTR F 90 - 90 Sq. Ft. Module Space UTR F 120 - 120 Sq. Ft. Module Space UTR F 168 - 168 Sq. Ft. Module Space UTRF 168 Zomeworks Universal Tracker Six Sizes Fit All The Zomeworks Universal Rack System allows for almost limitless adjustment in both the east-west and north-south directions. Available in six standard sizes for holding 2 to 32 modules, Universal Track Racks are designed to fit all common photovoltaic modules, including ASE, Astro Power/PV, BP/Solarex, Evergreen, First Solar, Kyocera, Photowatt/Matrix, Sanyo, Sharp, Shell/Siemens/Arco, Sun. Wize, Uni. Solar, and most other popular modules. This flexibility translates to faster delivery, better quality and overall economy.

Solar Decathlon 2005 PV panel Specifications

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