Safety is the state of being "safe" (from French sauf), the condition of being protected from harm or other non-desirable outcomes. Safety can also refer to the control of recognized hazards in order to achieve an acceptable level of risk.
The transition from a fossil fuel-based energy system to a renewable hydrogen-based system will take a long time. During this transition, research and fuel cell (FC) technology improvements towards performance benchmarks set by EU-funded scientists can pave the way.