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Delta's Power System Business Group I (PSBG I) accounts for more than 40% of Delta's revenues. In 2006 it shipped over 100 million power supplies. If we consider only the PSBG I products used in notebook computers and assume 8 hours 10 usage every day during the year, then it is easy to calculate that over 5 billion KWH is consumed, which is a staggering amount of power. As Delta continues to increase the efficiency of our power supplies even an improvement of 1% amounts to substantial energy savings. With improved efficiency of products from Delta's other business divisions, greater energy savings and decreases in GHG emissions can be achieved. The environmental performance of several eco-friendly products shipped by Delta in 2006 is described below: |
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1. ADP-60 NH B Adapter for Notebook Computers (U.S. Energy Star Version 1.1 Qualified)
This product has a power output of 60W and an average efficiency of 87.9% 11 . For comparison, the threshold value for Energy Star is 84%. If average output during use is assumed to be 40W and the product is used for 8 hours every day, after one year the sum of the output of all products shipped in 2006 saves more than 6 million KWH of electricity beyond what the Energy Star standard calls for.
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2. DPSN-186 & 216 Series Adapters for Game Consoles
Energy Star Version 1.1 requires products in this category to have a standby power consumption of under 0.75W. However, Delta's product achieves greater savings by reducing standby power consumption to under 0.35W. If each unit spends 20 hours in standby mode each day, the sum of the output from all products shipped in 2006 saves more than 20 million KWH of electricity over a year. |
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3. DC Fan Series (Larger or equal to 6cm in diameter)
The DC Fan Series launched in 2006 was at least 4% more energy efficient than the previous series. Fans larger or equal to 6cm in diameter in the new series made up around a quarter of all product shipments. If all fans of this series that were shipped in 2006 are used for 8 hours each day, over 220 million KWH of electricity can be saved after one year. |
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4. Solar Cells (DelSolar)
Improvements in the conversion efficiency of solar cells meant that more power can be generated by solar cells while consuming the same amount of electricity to produce the cells themselves (the amount of electricity needed to produce each watt of solar cell was reduced – as low as 6KWH per watt). Use of silicon materials was also reduced by around 3%. Based on production capacity for 2006, this represents around 4.6 million KWH of electricity and nearly 7 tonnes of silicon materials saved. |
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| For products launched in 2007, Delta's environmentally- friendly or energy-saving examples include: more efficient high-voltage Uninterruptible Power Systems (UPS), LCD TV power supplies and CCFL tubes, reduced mercury in CCFL tubes, higher energy intensity for power systems used in communications devices, super slim and highly efficient adapters for notebook computers, mercury-free flat backlight modules, solar power inverters with a conversion efficiency of over 95% and concentrating solar cell receiver assemblies with a conversion efficiency of over 35%. |
| Comparing the energy saved by our products as mentioned above with the energy conservation measures of Delta's factory sites, we can see that developing more efficient products delivers better results than the energy-saving measures at our daily operations. For the future, we will continue to evaluate and implement eco-friendly and energy-saving measures at Delta's offices and factories, and devote even more effort to developing innovative energy-saving products. This is essential to Delta's mission: "To provide innovative energy-saving products for a better quality of life". |
