Brackenburn is producing braquettes from harvested bracken, which burn hotter than oak and produce ash with a high potash content. It's a nice idea to turn a problem into a crop that pays for the harvesting and produces something that heats your home.
Today's edition of Farming Today had a piece (03:25 - 07:45) about Brackenburn that included an interview with Barry Smith, and to learn more about this product, visit the website.