Provenance it moves from hand to hand." Another metaphor is that provenience is an artifact's "birthplace", while provenance is its "résumé", though this is imprecise (many artifacts originated as trade goods created in one region but were used and finally deposited in another). Aside from scientific precision, a need for the distinction in these fields has been described thus: In this context, the "provenance" can occasionally be the detailed history of where an object has been since its creation, as in art history contexts – not just since its modern finding. In some cases, such as where there is an inscription
Power-to-X Power-to-X Power-to-X (also P2X and P2Y) has two meanings. First, power-to-X refers to a number of electricity conversion, energy storage, and reconversion pathways that utilize surplus electric power, typically during periods where fluctuating renewable energy generation exceeds load. Second, power-to-X refers to conversion technologies that allow for the decoupling of power from the electricity sector for use in other sectors (such as transport or chemicals), possibly using power that has been provided by additional investments in generation. The term power-to-x is widely used in Germany and may have originated there. The X in the terminology can refer to one of