The Pure Energy Systems Network (PES) aims to promote and further the use of clean and non-depleting energy sources which are reliable and affordable, and are yet to be introduced to the mainstream. The site features technology reviews that highlight the best technologies, and a directory that details energy inventions, inventors, companies and processes. An online store enables the visitor to purchase alternative energy related items, along with T-shirts and caps that read “Free Energy Now”, and mugs that bear the PES logo. Moreover, DIY e-books which explain how to generate electricity can be purchased, and there is also e-books on sun ovens. Other items for sale include high-powered spark plug replacements, and electrolysis systems that inject hydrogen into the air intake and improve mileage while emissions decrease. Miscellaneous features include radio shows that are illustrative on the subject, and links to interviews with individuals such as presidents of companies that do research on solar technology developments. The visitor can also access open source projects, like water-fuelled technology and motor energizers