Document and Entity Information (USD $)	12 Months Ended
	Dec. 31, 2013	Mar. 18, 2014	Jun. 30, 2013
Document and Entity Information:
Entity Registrant Name	PLUG POWER INC
Document Type	10-K
Document Period End Date	Dec. 31, 2013
Amendment Flag	false
Entity Central Index Key	0001093691
Current Fiscal Year End Date	--12-31
Entity Common Stock, Shares Outstanding		143,848,173
Entity Public Float			$ 30,259,968
Entity Filer Category	Non-accelerated Filer
Entity Current Reporting Status	No
Entity Voluntary Filers	No
Entity Well-known Seasoned Issuer	No
Document Fiscal Year Focus	2013
Document Fiscal Period Focus	FY