Supercapacitors are relatively expensive in terms of cost per watt.
超级电容器是相对昂贵，每瓦成本方面。
The technology is cheap and could lower the cost per watt of solar power.
这种技术成本低廉，可以降低每瓦特太阳能电力输出成本。
According to Kurzweil, "the cost per watt of solar energy is coming down rapidly and the total amount of solar energy is growing exponentially."
据库兹威尔说：“太阳能的每瓦成本正在迅速下降，而太阳能总量正在成倍增长。”
By using lenses and mirrors to concentrate sunlight onto high-efficiency solar cells, start-ups such as SolFocus, in Palo Alto, are trying to reduce the cost per watt of solar systems.
一些象帕洛·阿尔的SolFocus这样的初创公司正尝试用透镜和反光镜将日光聚集成高效率的太阳能电池来减低成本。
Current modules have 10 percent efficiency and an installed system cost of about $4 per watt.
现在通用的组建效率约为10%系统安装费用需要4元每瓦。
While the actual wattage difference between a 1 TB SATA drive and a 300 GB Fibre Channel drive is marginal, the cost difference on a watt-per-capacity basis is significant.
虽然1TBSATA驱动器和一个300GB的光纤通道驱动器的实际功率差异相差不远，但瓦特/容量（单位容量的能耗）的成本差异极大。
While the actual wattage difference between a 1 TB SATA drive and a 300 GB Fibre Channel drive is marginal, the cost difference on a watt-per-capacity basis is significant.
虽然1TBSATA驱动器和一个300GB的光纤通道驱动器的实际功率差异相差不远，但瓦特/容量（单位容量的能耗）的成本差异极大。
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