This newsletter series has previously outlined the Onshore Power Supply (OPS) requirement and benefits under FuelEU as also stipulated in Annex III of FuelEU, which incentivizes the adoption of zero-emission technologies while ships are in port. Today's newsletter dives deeper into Zero Emission Technologies (ZETs) at berth going beyond the obvious choice of OPS discussing battery charging, or fuel cells powered by hydrogen or ammonia. The newsletter answers questions such as