The cost prospect of solar energy was a non-negligible incentive for photovoltaics (PV) development. Already since the 1960s, scientific evidence had it that PV could eventually beat nuclear in terms of cost: Nuclear cost was the benchmark then. The United States estimates that $399 billion are needed to modernise its nuclear arsenal by 2026, Russia speaks of $330 billion needed for its nuclear armament over the next 20 years. The purpose of the manifesto was to strongly oppose that the new German Bundeswehr be armed with nuclear weapons. The biggest German demonstrations of all times took place against the stationing of new nuclear ballistic missiles in the country, and against a third world war that was seen as probable. In the early 1980s, a protagonist of the German peace movement was Petra Kelly, also called the “Jeanne d’Arc of the Nuclear Age”.