High performing and reliable 20 cm(2) size protonic ceramic fuel cell has been elaborated by wet chemical routes (tape-casting and screen-printing) as following: Anode substrate NiO-BaC0.8Zr0.1Y0.1O3-delta (BCZY81)/electrolyte BCZY81-ZnO (5 mol%)/cathode Ba0.5Sr0.5Co0.8Fe0.2O3-delta (BSCF) - BCZY81/current collector BSCF. The cell fabrication steps were optimized to achieve power density of 165 mW.cm(-2) at 600 degrees C for a potential E = 0.7 V. Finally, endurance test including dynamic (seasonal) power demand (micro-cogeneration profile) and reversible (electrolysis/fuel cell) cycles have been successfully performed during 3000 h. A low electrical degradation rate of delta V = -1.2%/kh under fuel cell power cycles revealed promising reliability behaviour of such cell under flexible energy services profiles. (C) 2017 Elsevier B.V. All rights reserved.