Stands for Balance of Plant - and includes all of the ancillary equipment required to run a fuel cell system
Fuel cells glossary
BoP
PEMFC
Proton Exchange Membrane Fuel Cell - (also known as polymer electolyte membrane fuel cells). A type of fuel cell that is effective at lower temperatures and pressures than an solid oxide fuel cell.
SOFC
Solid Oxide Fuel Cell - fuel cell using a solid oxide material as the electrolyte