 With assistance from professor Pompeo Garuti of Italy he was able to develop the hydrogen storage system in a few years.Because of his personal contributions to this technology he was granted a monopoly of using Garutis patents in Denmark.From 1895 until 1902 Askov Folk High School was illuminated by a mixture of hydrogen and oxygen, and although the energy originated from the wind, there does not seem to have been a single day without light, thanks to the 12 cubic metres hydrogen tank.