▁the ▁world . ▁The ▁bus es ▁were ▁estimated ▁to ▁cost ▁US $ ▁ 1 . 2 ▁million ▁each ▁and ▁have ▁a ▁range ▁of ▁ ▁and ▁carry ▁around ▁ 7 0 ▁passengers . ▁ ▁Project s ▁ ▁C UTE ▁ ▁C UTE ▁stands ▁for ▁C lean ▁Urban ▁Transport ▁for ▁Europe . ▁This ▁European ▁Union ▁initi ative ▁was ▁responsible ▁for ▁the ▁fuel ▁cell ▁bus es ▁in ▁all ▁but ▁two ▁of ▁the ▁cities : ▁Hamburg , ▁London , ▁Barcelona , ▁Stockholm , ▁Porto , ▁Stuttgart , ▁Amsterdam , ▁Luxemb ourg , ▁and ▁Madrid . ▁It ▁was ▁supported ▁by ▁a ▁cons ort ium ▁of ▁transport ation ▁operators , ▁hydro gen ▁infrastr ucture ▁and ▁fuel ▁cell ▁developers , ▁univers ities ▁and ▁city ▁authorities . ▁The ▁project ▁ran ▁from ▁ 2 0 0 1 - 2 0 0 6 . ▁The ▁project ▁was ▁" de emed ▁a ▁success ." ▁ ▁E CT OS ▁ ▁E CT OS ▁stands ▁for ▁E colog ical ▁City ▁Transport ▁System . ▁I cel and ic ▁New ▁Energy ▁was ▁responsible ▁for ▁this ▁project , ▁the ▁aim ▁of ▁which ▁was ▁to ▁demonstrate ▁" state - of - the - art " ▁hydro gen ▁technology ▁by ▁running ▁part ▁of ▁the ▁public ▁transport ▁system ▁with ▁fuel ▁cell ▁bus es ▁in ▁the ▁city ▁Re yk jav ík , ▁the ▁capital ▁of ▁I cel and . ▁H ydro gen ▁was ▁produced ▁from ▁domestic ▁ge oth erm al ▁and ▁hydro - power ed ▁energy ▁sources ▁by ▁electro ly s is . ▁The ▁project ▁ran ▁from ▁ 2 0 0 1 -