A complete plan for how Europe could supply its electricity needs without new nuclear power stations has been produced by the Club of Rome with German government support. You can download the full report PDF or visit the desertec website for more information.
The main renewable energy technologies described (solar CSP, wind, solar PV and marine) are all eminently suited to mass production because they require production of many thousands of identical units and no unusual hazards are involved. Existing industries could retool to produce renewables as quickly as they switched to military production at the start of World War 2.
More about this at: Open Engineering
