Kyoto, Japan, -- Kyocera announces the development of a large-scale solar module with 200-watt output capability for introduction in Japan in January 2005. The company believes that this module is ideally geared for large-scale solar electric generating systems of 100 kilowatts (kW) or greater, which are increasingly being installed for public and industrial applications.
Model: SPG200T-02 (* For the Japanese market)
Nominal max. output: 200.0W (* Largest output among the mass production-type solar modules in Japan)
Module conversion efficiency: 14.18%
External dimensions: 1425mm x 990mm x 36mm (approximately 56 x 39 x 1.5")
Element configuration: 54 units, one series * 150mm x 155mm rectangular cell
Cell in use: Multicrystal silicon, highly efficient solar cell * Average cell efficiency 15.9%
The Japanese government this year set a target to achieve 4.82 million kilowatts of national energy capacity through solar power generation by 2010, with a long-term goal of 83 million kilowatts by 2030.* It is therefore expected that demand for solar cells and modules in Japan will rise dramatically in the future.
Interest in residential solar power generation systems is growing rapidly in Japan, and the number of households equipped with solar power generation systems has been increasing steadily for the last several years.
In addition, large-scale PV systems have been installed in a wide range of applications, including public facilities, industrial plants, government office buildings, schools, medical facilities and commercial office buildings, through subsidy programs and support measures set up by the national and local governments.
Recently, an increasing number of local governments and companies are introducing large-scale systems of 100kW or greater. Very large-scale applications, such as the purification plant in Tokyo, now involve PV systems of 500kW to 1000kW or greater.
* Based on the "Outlook for Energy Supply and Demand in 2030 (Interim Report)" by the Supply and Demand subcommittee of the Total Resources and Energy Research Group in June 2004
Kyocera is committed to serving the entire market for solar PV systems, from residential to large- and very-large scale installations. In so doing, the company seeks to optimize every element of the system, from materials and components to the design, environment and available space. The goal is a total solution using flexible design capabilities to address all of the important system variables, including logistics and costs.
Following the above market trends, Japan's Ministry of the Environment has high expectations for the potential inherent in commercializing solar power generation systems as power facilities, and plans to conduct a demonstration experiment of a megawatt-class (1MW=1000kW) solar electric generating facility. There is thus no doubt that installations of large-scale solar power generation systems for public and industrial 'use will increase.
For large-scale systems, Kyocera recognizes that the following requirements need to be fulfilled: (1) Scalability to make the system itself larger; (2) Space efficiency; (3) Superior total cost performance. With output of 200W, Kyocera's new PV module is designed to address these specific requirements.
Larger modules dramatically reduce the total number of modules required for the overall system. This helps to reduce costs by increasing the efficiency of delivery, installation, and construction work. It consequently brings more advantages and satisfaction to those who introduce large-scale systems.
1) Introduction of Kyocera's highly efficient multicrystal silicon solar cells Kyocera attained the world's greatest module conversion efficiency of 17.7% in multicrystal silicon solar cells for mass production in June 2004. Kyocera's proprietary new and highly efficient solar cell was created by improving the quality of silicon wafers and increasing the area for receiving light through a fine, low-resistance electrode structure. The company will begin supplying the highly efficient solar modules by employing highly efficient cells in the production process in the next fiscal year. The 200W PV module incorporates 54 of the new, highly efficient cells (average efficiency: 15.9%) through advance introduction of some of these technologies.
2) Increased system output using fewer modules By attaining the highest* output of 200W, it is possible to develop a large system with fewer modules, reducing installation and electrical wiring work. * Among the mass production-type solar modules in the Japanese market
3) New design with additional row of cells The number of cells installed for the conventional 178.6W module was 6 units x 8 rows, for 48 units in total. For the new module, one row of cells (six units) was added to make 6 units x 9 rows, for 54 units in total. This increases the area of the modules by 10%, to 1425 x 990mm, compared with the conventional type, measuring 1290 x 990mm.
Although a larger module usually decreases efficiency, conversion efficiency of the new module is increased to 14.18%, compared with 13.98% for the conventional module.
With a larger module, weight is increased by 3kg/unit, but the rack weight per unit is reduced, resulting in a lighter overall system. It is also possible to achieve cost savings with a lower volume of rack materials and reduced rack installation labor. The bigger the system, the greater these advantages become.
Kyocera Corporation, Tel: +81-75-604-3500,