Hi all,
I agree with hesener on the fact that there are still a lot of old school electrical applications that consume way too much power (although they may be cleverly marketed as energy efficient, green, alternative etc)
However, I'd also like to further add that a lot has changed since the last decade when it comes to microprocessor design and manufacturing, where this issue seems to have been taken quite seriously. Gone are the days of the 'MHz wars' when every processor vendor would invent notorious ways of increasing the clock frequency without any particular concern over power consumption. In many cases, the actual increase in throughput with regards to the increase in clock frequency was insignificant. In a famous keynote speech in the mid-90s, Pat Gelsinger (of Intel) astonished everyone by stating that if this trend was to continue then in 15 years time the W/cm2 of a microprocessor die would be similar to that of the sun's outer surface. A lot has changed since then. Fabrication technology has improved and new materials are being used to combat leakage power. Clockgaters have been introduced into the designs to ensure that any unused part of the microprocessor is switched off. New novel low power architectures (ARM, MIPS) are widely used in 8, 16, 32 bit MCUs/MPUs which are even breaking into the computer server market.
Datacenters/Clusters were (and are still) considered to be massive power hungry monsters, which drove the datacenter managers nuts with their electricity bills. The cost of maintainance and air-cooling outweighed the computing costs by a factor of 2 ~ 3. This scenario has significantly changed with the advent of cloud computing. This has meant that application workloads are not tied to any physical machine and can be distributed or moved from one machine to the other. In other words, computing resource can be dynamically scheduled depending on the size of the workload.
So, don't know whether I have moved away from the topic but 'designing green' is definately on and here to stay!
Take a look at the slew of blog posts in the Alternative Energy group. It seems like the technology push in that section is increasing rapidly. From students to large companies, everyone has green on the mind these days.
Cabe
Take a look at the slew of blog posts in the Alternative Energy group. It seems like the technology push in that section is increasing rapidly. From students to large companies, everyone has green on the mind these days.
Cabe