The development of solar energy for commercial power generation has been an active area of work for several decades. A limiting design consideration for solar receivers is creep-fatigue because of the high heat fluxes involved and the inherent cyclic nature of solar energy. Design activities and concerns are presented for a recent commercial molten salt receiver application. A critical review of available creep-fatigue data and methods is provided and supplemented with detailed inelastic analysis. Recommendations are made for both design and further material property development that would help to remove conservatism and increase reliability. Paper published with permission.