Document and Entity Information	6 Months Ended
	Jun. 30, 2011	Jul. 31, 2011
Document and Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2011
Entity Registrant Name	RIDGEWOOD ELECTRIC POWER TRUST V
Entity Central Index Key	0001060755
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2011
Document Fiscal Period Focus	Q2
Entity Filer Category	Smaller Reporting Company
Entity Common Stock, Shares Outstanding		932.8877