Project Assets	9 Months Ended
Jul. 31, 2017
Project Assets [Abstract]
Project Assets	Note 6. Project Assets Project assets as of July 31, 2017 and October 31, 2016 were $67.2 million and $47.1 million, respectively. Project assets as of July 31, 2017 include $31.4 million which represents four completed, commissioned installations where we have a PPA with the end-user of power and site host. These assets are the subject of sale-leaseback arrangements with PNC Energy Capital, LLC (“PNC”), which are recorded under the financing method of accounting for a sale-leaseback. Under the finance method, the Company does not recognize the proceeds received from the lessor as a sale of such assets. The Project assets balance also includes assets aggregating $32.4 million which are being constructed by the Company under PPAs which have been executed or are expected to be executed in fiscal year 2017. In November 2016, the Company’s wholly-owned subsidiary, FuelCell Energy Finance, LLC (“FuelCell Finance”) entered into a membership interest purchase agreement with GW Power LLC (“Seller”) whereby FuelCell Finance purchased all of the outstanding membership interests in New Britain Renewable Energy, LLC (“NBRE”) from Seller. Seller assigned the NBRE interest to FuelCell Finance free and clear of all liens other than a pledge in favor of Webster Bank, National Association. The Company adopted ASU 2017-01 which resulted in the transaction being accounted for as an asset acquisition of a power plant with a fair value of $2.3 million ($2.0 million as of July 31, 2017) which has been classified as a long-term project asset in support of an Energy Purchase Agreement. Project construction costs incurred for the long-term project assets are reported as investing activities in the Consolidated Statements of Cash Flows. The proceeds received from the sale and subsequent leaseback of project assets are classified as “Cash flows from financing activities” within the Consolidated Statements of Cash Flows and are classified as a financing obligation within “Current portion of long-term debt” and “Long-term debt and other liabilities” on the Consolidated Balance Sheets (refer to Note 14 for more information).

Note 6. Project Assets

Project assets as of July 31, 2017 and October 31, 2016 were $67.2 million and $47.1 million, respectively. Project assets as of July 31, 2017 include $31.4 million which represents four completed, commissioned installations where we have a PPA with the end-user of power and site host. These assets are the subject of sale-leaseback arrangements with PNC Energy Capital, LLC (“PNC”), which are recorded under the financing method of accounting for a sale-leaseback. Under the finance method, the Company does not recognize the proceeds received from the lessor as a sale of such assets. The Project assets balance also includes assets aggregating $32.4 million which are being constructed by the Company under PPAs which have been executed or are expected to be executed in fiscal year 2017.

In November 2016, the Company’s wholly-owned subsidiary, FuelCell Energy Finance, LLC (“FuelCell Finance”) entered into a membership interest purchase agreement with GW Power LLC (“Seller”) whereby FuelCell Finance purchased all of the outstanding membership interests in New Britain Renewable Energy, LLC (“NBRE”) from Seller. Seller assigned the NBRE interest to FuelCell Finance free and clear of all liens other than a pledge in favor of Webster Bank, National Association. The Company adopted ASU 2017-01 which resulted in the transaction being accounted for as an asset acquisition of a power plant with a fair value of $2.3 million ($2.0 million as of July 31, 2017) which has been classified as a long-term project asset in support of an Energy Purchase Agreement.

Project construction costs incurred for the long-term project assets are reported as investing activities in the Consolidated Statements of Cash Flows. The proceeds received from the sale and subsequent leaseback of project assets are classified as “Cash flows from financing activities” within the Consolidated Statements of Cash Flows and are classified as a financing obligation within “Current portion of long-term debt” and “Long-term debt and other liabilities” on the Consolidated Balance Sheets (refer to Note 14 for more information).