Henri Tudor sought a permanent solution to these problems and manufactured himself a mould for casting large surface plates with which he built a lead-acid accumulator of his own design. Doing so, he could rely on the help of his brother Hubert, and of his cousin, Nikolaus Schalkenbach of Trier. With the combined equipment – generator and buffer battery – he was able to run continuously and constantly the power supply of the "Irminenhof", which thus became the first private home in Luxembourg to have electric lighting.