I cannot here this boring argument about solar, wind and wave being no alternative repeated again and again. The argument does not get better over time. Had we invested a fraction of the research funding that we have given to nuclear power industries into renewable energy research, we would probably already have most of our energy from renewalbe sources.
Nuclear power is inherently dangerous, we do not know how to deal with the waste, the nuclear fossil fuel will last only a couple of decades, and huge power plants are as inefficient as it gets because of the long distances electricity is transported. By contrast, distributed generation of electricity as proposed by the article is much more efficient, because it happens very close to the consumer.
Solar-based energy is technically possible for Europe even with a 24/7 load. The initiative "Desertec" is following this approach, and there are several studies showing the feasability, financed by the German Federal Ministry for the Environment, Nature Conversation and Nuclear Safety, see http://www.desertec.org/en/concept/studies/ . The reasons why this initiative might still fail are purely political, and for me, this is no excuse.