Editing Solid oxide fuel cell (section)

==Target==
[[United States Department of Energy|DOE]] target requirements are 40,000 hours of service for [[stationary fuel cell applications]] and greater than 5,000 hours for transportation systems ([[fuel cell vehicle]]s) at a factory cost of $40/kW for a 10&nbsp;kW [[coal]]-based system<ref>[https://www.osti.gov/biblio/1332517 SECA Coal-Based Systems – LGFCS]. www.osti.gov. Retrieved 19 February 2019.</ref> without additional requirements. Lifetime effects (phase stability, thermal expansion compatibility, element migration, conductivity and aging) must be addressed. The [[Solid State Energy Conversion Alliance]] 2008 (interim) target for overall degradation per 1,000 hours is 4.0%.<ref>[https://www.energy.gov/fe/articles/fuel-cell-stacks-still-going-strong-after-5000-hours Fuel Cell Stacks Still Going Strong After 5,000 Hours]. www.energy.gov (24 March 2009). Retrieved 27 November 2011. {{webarchive |url=https://web.archive.org/web/20091008091105/http://www.netl.doe.gov/publications/press/2009/09018-Fuel_Cell_Exceeds_Goals.html |date=8 October 2009 }}</ref>