摘要: Fusion is the energy source of universe. The local conditions in core sun allow transfer mass into energy, which finally released form radiation. Technical fusion melts deuterons and tritons to helium, releasing large amounts per process. Because for fusion, will be deduced, fuel plasma state. Here, we report on confinement plasmas by magnetic fields. Different concepts – tokamaks stellarators – are introduced described. first reactor, ITER, most modern stellarator, Wendelstein 7-X, are under construction. Their basic features objectives presented. In addition, technology program discussed along with safety proliferation issues electricity production. Finally, question whether application cannot penetrate market before 2050, come too late or expensive answered. Keywords: fusion; magnetic confinement; tokamaks; stellarators; ITER ; Wendelstein 7-X ; fusion