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Revenue
 9 Months Ended
Sep. 30, 2023
Revenue from Contract with Customer [Abstract]  
Revenue Revenue Revenue is recognized when control of the promised goods or services is transferred to customers at an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods and services. NEP's operating revenues are generated primarily from various non-affiliated parties under PPAs and natural gas transportation agreements. NEP's operating revenues from contracts with customers are partly offset by the net amortization of intangible asset – PPAs and intangible liabilities – PPAs. Revenue is recognized as energy and any related renewable energy attributes are delivered, based on rates stipulated in the respective PPAs, or natural gas transportation services are performed. NEP believes that the obligation to deliver energy and provide the natural gas transportation services is satisfied over time as the customer simultaneously receives
and consumes benefits provided by NEP. In addition, NEP believes that the obligation to deliver renewable energy attributes is satisfied at multiple points in time, with the control of the renewable energy attribute being transferred at the same time the related energy is delivered. Included in NEP’s operating revenues for the three months ended September 30, 2023 is $291 million and $58 million, for the nine months ended September 30, 2023 is $825 million and $171 million, for the three months ended September 30, 2022 is $232 million and $64 million, and for the nine months ended September 30, 2022 is $747 million and $181 million, of revenue from contracts with customers for renewable energy sales and natural gas transportation services, respectively. NEP's accounts receivable are primarily associated with revenues earned from contracts with customers. Receivables represent unconditional rights to consideration and reflect the differences in timing of revenue recognition and cash collections. For substantially all of NEP's receivables, regardless of the type of revenue transaction from which the receivable originated, customer and counterparty credit risk is managed in the same manner and the terms and conditions of payment are similar.
NEP recognizes revenues as energy and any related renewable energy attributes are delivered or natural gas transportation services are performed, consistent with the amounts billed to customers based on rates stipulated in the respective agreements. NEP considers the amount billed to represent the value of energy delivered or services provided to the customer. NEP’s customers typically receive bills monthly with payment due within 30 days.
The contracts with customers related to pipeline service revenues contain a fixed price related to firm natural gas transportation capacity with maturity dates ranging from 2023 to 2035. At September 30, 2023, approximately $1.5 billion of revenues are expected to be recorded over the remaining terms of the related contracts as the capacity is provided. Revenues yet to be earned under contracts with customers to deliver energy and any related energy attributes, which have maturity dates ranging from 2025 to 2052, will vary based on the volume of energy delivered. At September 30, 2023, approximately $172 million of revenues related to the fixed price components of one PPA are expected to be recorded through 2039 as the energy is delivered.