Mitsubishi Electric Corporation on February 18, 2010 announced that its poly-silicon photoelectric conversion efficiency of photovoltaic solar cells created two world records, these records by reducing the loss of cell resistance to achieve.
One of world-record third consecutive year of record, so that more than 100 square centimeters of practical size of polycrystalline silicon PV cells reached 19.3% photoelectric conversion efficiency of the photovoltaic cell size of approximately 15cmx15cmx200 microns. With the company’s previous record of 19.1% conversion efficiency compared to increase of 0.2 percentage points.
The second world record for the ultra-thin polycrystalline silicon photovoltaic cells (size about 15cmx15cmx100 microns) preclude the use of the same technology, so that photoelectric conversion efficiency of 18.1%, with the company’s previous record of 17.4% conversion efficiency compared with an increase of 0.7 percentage points .
In addition, Mitsubishi Electric Corporation using three-pronged structure so that 5mmx5mm thin-film photoelectric conversion efficiency of silicon PV cells reached 14.8%, the first layer of thin-film silicon photovoltaic cells to absorb short wavelength, the third layer to absorb longer wavelengths, thus the use of wide – range of solar spectrum, from visible to infrared rays.
In addition, Mitsubishi Electric has developed the largest number in the photovoltaic systems technology to improve power output Inspiron 700m battery , Inspiron 710m battery , Inspiron 8000 battery , by the new maximum power point tracking (MPPT) photovoltaic inverter system combination to achieve. This technology uses a single PV inverter to work, even in partially shaded PV array, or the dust cover can also be blocked when the maximum power point.
Mitsubishi Electric Corporation, this technological breakthrough to make MPPT system can automatically measure the power output characteristics of PV array, and then control the PV array maximum power point in his work, thus ensuring that PV systems from the PV array maximum acceptable power output. In some cases, and set up compared to the conventional MPPT system, this technology will enable the power output to double.