Wood fuel is proven beyond any reasonable doubt to be carbon neutral. Unlike the common belief amongst peers, wood burning doesn't increase atmospheric carbon dioxide levels. Though wood logs will obviously emit carbon dioxide while burning, the carbon discharged will be counterbalanced by the growing trees. This is a fact since trees absorb carbon dioxide and emit pure oxygen which aids minimize the levels of carbon dioxide released into the atmosphere.
Wood offers a renewable and sovereign source of energy. Wood fuel is available in plenty and there are lower chances you can lack ready wood fuel for sale. As for oil and gas, they are non-renewable so you can expect them to run out any time without prior warning. As for electricity, it is produced by burning fossil fuels which a limited commodity meaning it can run out any fine day.