Not so sustainable, after all?

Finally sold my car!

Yes, I was considering to buy an EV, as I discussed in the post “To EV or not to EV”. But, for the moment I just sold my car and will try to be “car-less person”. At the end of the day, using public transport, car-sharing (we now have car2go in Madrid and it works great) and the bike is clearly more sustainable than owning any vehicle. (Well, and also borrowing my wife’s car sometimes…)

Parte trasera coche fino

But: I sold it. Which means my 15-year-old diesel guzzling 7-series BMW will still be consuming +15 l/100 km and emitting lots of particles and CO2 pollution. Depending on the distance the new owner will drive, it might be more ecological than him buying a new, more efficient, one. That’s because of increased asset utilization and vehicle construction sunken emissions. However, it might be that the most ecological and sustainable would be  Sigue leyendo

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

To EV or not to EV…

It’ been a while since my last post!

This is a personal view on the question of buying an electric vehicle (EV) or not. Who knows, you might consider the same soon…

Car decision hand

Images from Svilen Milev -the car image- (http://efffective.com) and Natalia Pankova -the hand picture- (www.getphoto.ca)

It happens I have the “chance” of changing my old third-hand BMW, that despite the “glamour” of the brand, hurts me ecologically and economically with the >10 litres/100 km, that is 1,5 €/10 km, every time I don’t take the metro when commuting… Sigue leyendo