Bike immortality, efficiency that never dies

This post shows my new taste for classic bikes… and is also a mix of energy efficiency advocacy and touristic scenery I hope you will like!

Living in Sweden for the last month and a half, I was amazed by the rich quantity…

Bikes in Vasteras Centre

Bikes parked in Vasteras Centre

…and the colourful variety of bicycles around.

Bike decorating shop

Flowered bike decorating shop

I’m not saying nothing new if I highlight the multiple benefits of bicycles for the cities, and for the individuals… so i’ll skip that.

 

What I want to highlight is the immortality of bikes. The older the bike, the more efficient is the “asset utilization”, and higher the return, let’s call it MROEI (mobility return on energy invested). And as long as the frame is fine, by changing tires and brake-pads, a bike can basically live forever. An example, the following picture from a bike almost 70 years old:

Sigue leyendo

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Google energy storage

I’m surprised Google Energy has still not got it…

How did they create the most competitive data centres in the world to grow so fast? How could they build the most competitive energy storage centres in the world?*

If you know the answer to the first one, you probably know what I mean in the case of energy storage.

By Steve Jurvetson (http://flickr.com/photos/jurvetson/157722937/) [CC-BY-2.0 (http://creativecommons.org/licenses/by/2.0)], via Wikimedia Commons

Google Production server. By Steve Jurvetson (http://flickr.com/photos/jurvetson/157722937/) [CC-BY-2.0 (http://creativecommons.org/licenses/by/2.0)%5D, via Wikimedia Commons

The key was and is to use inexpensive harware. With servers, rapid obsolescence meant they wouldn’t need to repair the PCs used for their servers, many of the servers wouldn’t ever work, and the design had to be optimized to work around these failures. Of course now they are interested in the most energy efficient server systems, as that is the main cost for operating data centres, but the cheap and fast concept remains.

In the case of battery storage, Sigue leyendo