Carbon Neutral
When the Great Explorers ventured into the blank spots on the globe, they didn't have access to electricity or gas. Just like them you will be producing your own energy to prepare meals and light the tents. All your energy and heating needs are met from non-fossil fuel sources so they don't add CO2 to the atmosphere.
Wood is the fuel source for the stoves you cook on and use to warm the tent once the sun has gone down. It will also be how your bath and shower water is heated up.
A Victorian-style 12 volt system is used for lighting with energy-saving LEDs. Electricity is delivered and stored in a mobile car battery whose energy is generated by you and your family, with the help of a bicycle hooked up to a dynamo.
So you'll keep fit at the same time!