Travelling to remote region such as mountains, isolated islands and tropical forests can be exciting. Natural places offer beautiful sceneries, clean air, and serenity that are effective to relieve stresses and headaches which the travellers got during their hectic workdays in big cities.
When travellers set up camps in remote region, they will need electricity for powering lamps, recharging their GPS handset, mobile phones and even laptops. Portable navigational devices will enable travellers to go to certain destinations. Mobile phone is also important to help them communicate with "civilised word" in case of accident. If those equipments cannot work, travellers will be lost.
Usually travellers burn dry twigs to cook food, and to provide lights and heat at night. But it is not recommended to burn wood, especially during the summer, in natural places as it might cause forest fire.
Travellers buy a lot of batteries which will become additional weights in their rucksacks as energy bank for their electronic devices. We all know that the capacity of batteries is limited. When they are used up, they will be thrown away. High powered batteries contain various toxic materials which can pollute the environment. Most travellers are reluctant to bring them back home for recycling. Such practices have to be stopped. A better solution is now available on the market.
Then, solar panel was invented. Travellers could use this photovoltaic technology to recharge batteries or run their communication equipment. Unfortunately, photovoltaic panel is sold in big size. It is also rigid and cannot be inserted to small bags. If a traveller wants to bring the photovoltaic panel during his journey, he or she cannot really enjoy her trip because she has to handle the panel cautiously. If it is broken, it cannot function anymore.Photovoltaic manufacturing companies have provided solutions to this problem. In their websites, they offer flexible photovoltaic panels which are rollable and available in the range of 5, 10, and 20 watts. This power supply can easily be rolled-up and inserted to a small bag. There are also portable solar panels whose sizes are small and can be inserted into travel bags.