They said humans would never fly, the Wright brothers proved them wrong. 
They said that flying would never be eco-friendly, a pair of Swiss explorers are proving them wrong. 
They said flying economy would never be comfortable, well.. we can't really help you there. 
But! If you haven't yet heard about this fuel-free flying that has been going on, you need to check this out! Bertrand Piccard had a dream and with the help of Andre Borschberg that dream is coming true. They have built and are flying a completely solar-powered airplane around the world. This aircraft, named the Solar Impulse, is a one-seater plane that runs off of solar power alone, it is made from carbon fiber and has a wingspan of 72 metres. It has 17,000 solar cells that supply the 4 electric motors and that charge the lithium batteries to allow for night time flying.

Reduce your electricity usage

Dreaming of going off-grid? The first thing you should think about is reducing your consumption of power. I have been told that for every dollar spent inside the house towards reducing power consumption you can decrease the value of the necessary solar system by 3 dollars. Did that make sense? Let's see if I can break that down a little bit; you have 10, 2$ incandescent light bulbs in your house and the solar guy quotes you a 10,000$ system to turn your house to off-grid. You decide to switch out your bulbs for 10$ LED bulbs and ask the solar guy for another quote. This time it comes in at 9,760$. That extra 80$ (100$ of LEDs – 20$ of incandescents) saves you 240$ on your system. And even if you don't plan on getting that solar system right away anything you do to make your house more efficient today will save you in power bills. 
Here are a few ways to make your house more efficient: