For the past week I’ve been trying out this tiny wind turbine called the HYmini. The fan charges up an internal battery which can power any gadget that connects to its USB port.

I’ve mounted this one on the handlebars of my bike, and my 12-mile commute so far seems to be enough to power my mobile phone. The only downside is that I have to explain what it is to inquisitive cyclists at every red traffic light.

As well as this, the PC Pro offices are currently stuffed full of solar panels, wind-up chargers and various battery packs. It’s all research for a feature coming up in the next issue, which asks if it’s possible to power all of your gadgets with sustainable energy. Check out issue 165 for the answer.

Top Tip: If you ever have to design a “green” gadget, why not make it an attractive colour? Green green products are a cliché.