Solar Photovoltaics

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Solar Photovoltaics System

An attractive, chic design and high-capacity installation


A refined design in shades of black.
Extending the eaves of the roof allows our system to maintain a large panel area while protecting against the intense solar radiation of summer.
This high-capacity installation of solar modules uses the entire roof and is finished to give a beautifully chic facade.

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Production on an ULVAC thin-film cell manufacturing line

Our solar modules are produced on the line designed by ULVAC, Inc., that is a global leader in vacuum manufacturing technologies. This manufacturing line won the “2008 Nikkei Superior Products and Services Awards/Nihon Keizai Shimbun Awards for Excellence” and it's been recognized for excellence.


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A TUV certified product

Our solar modules have passed rigorous testing based on IEC standards, and have been certified by the German certification organization TUV Rheinland. TUV certification is a recognized requirement by the Japan Photovoltaic Expansion Center (J-PEC) for compliant modules, and purchases of solar photovoltaics that have received the TUV certification by consumers in Japan qualify for a subsidy.

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High generation capacity even in warm regions and summertime temperatures

Since the output of thin-film solar photovoltaics suffers little deterioration due to an increase in the module temperature, annual energy production is greater than crystalline-types when comparing systems of equal capacity. Controlling the influence of ambient temperature realizes a stable power generation capacity, even when the roof becomes hot during the summer.

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Resource conservation through low quantity of silicon

Tandem-type thin-film silicon solar cells use just 1% of the silicon used in crystalline solar cells through a structure of silicon deposited thinly on a glass substrate. Thereby we realize an extremely resource-efficient solar photovoltaics, completed with the absolute minimum of raw materials. This solar photovoltaics does not require silicon wafers, and so a stable supply that is not susceptible to issues such as raw material supply shortages is possible. A high-capacity installation is realized through increasing the cost performance per kW.

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