Document and Entity Information - USD ($)	12 Months Ended
	Sep. 30, 2017	Jan. 22, 2018
Document And Entity Information
Entity Registrant Name	Renewable Energy & Power, Inc.
Entity Central Index Key	0001608430
Document Type	10-K
Document Period End Date	Sep. 30, 2017
Amendment Flag	false
Current Fiscal Year End Date	--09-30
Is Entity a Well-known Seasoned Issuer?	No
Is Entity a Voluntary Filer?	No
Is Entity's Reporting Status Current?	Yes
Entity Filer Category	Smaller Reporting Company
Entity Public Float	$ 700,000
Entity Common Stock, Shares Outstanding		961,536,613
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2017