How quick can the acceptance of the population be achieved?

It will take the automotive industry 30 years to fully change over from one technology to another. The government of Iceland expects that the economy of the country will be fully on hydrogen technology by 2050. Iceland wants to be the first hydrogen economy of the world. It is obvious that within the 15 years of our scope the transition will only be in the very early stage or still in the experimental period. However it is the automotive industry that has to choose which technology will succeed the combustion engine. The automotive industry is the most powerfull in this process. The infrastructure can be build very easily. The population will change over if the technology is reliable, not more expensive that traditional systems and as confortable. On all these areas much work and research has to be conducted.