The development of alternative power sources such as fuel cells will add to overall efficiency, but only if people can afford them. (goldmansachs.com)
Significant efforts in the business sector are already underway in the areas of alternative power, green building, low - emission vehicles and energy - efficient manufacturing. (footprintnetwork.org)
Even more interesting is the mention of advanced and innovative design ideas such as alternative power sources. (goodereader.com)