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.
EU-funded scientists successfully developed a system that generates electricity from low-temperature waste heat ranging from 60 to 120 °C. Harnessing low-grade heat should help to significantly mitigate the negative environmental impact of industrial plants.