In this case, I looked at the MMD A Electric Power as a benchmark, since there is no MMD for BBB-rated bonds in the electric power sector.

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Two Class D units rated at 2 x 150 watts power up the subwoofer.

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It also features micro USB charging, backlit LCD screen and a 5200mAh (6 hour rated) rechargeable battery that can power connected USB devices as well as serving as a backup battery for iPads.

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Its power supply is less robust, so LED bulbs are usually rated for 25, 000 hours.

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The technologies of the 21st century are still largely powered by the dirty coal power of the past, with over half of the companies rated herein relying on coal for between 50 percent and 80 percent of their energy needs.

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In 2008 the World Bank rated it the third richest country in the world, in terms of GDP per head at purchasing-power parity.

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