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SEC Filings
TERRAFORM POWER, INC. filed this Form 10-K on 03/15/2019
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Asset Retirement Obligations

Asset retirement obligations are accounted for in accordance with ASC 410-20, Asset Retirement Obligations. Retirement obligations associated with renewable energy facilities included within the scope of ASC 410-20 are those for which a legal obligation exists under enacted laws, statutes, and written or oral contracts, and for which the timing and/or method of settlement may be conditional on a future event. Asset retirement obligations are recognized at fair value in the period in which they are incurred and the carrying amount of the related renewable energy facility is correspondingly increased. Over time, the liability is accreted to its expected future value. The corresponding renewable energy facility that is capitalized at inception is depreciated over its useful life.

The Company generally reviews its asset retirement obligations annually, based on its review of updated cost studies, as necessary, and its evaluation of cost escalation factors. The Company evaluates newly assumed costs or substantive changes in previously assumed costs to determine if the cost estimate impacts are sufficiently material to warrant application of the updated estimates to the asset retirement obligations. Changes resulting from revisions to the timing or amount of the original estimate of cash flows are recognized as an increase or a decrease in the asset retirement cost to the extent applicable.

During the fourth quarter of 2018, the Company revised the accretion period related to its wind projects and determined that these obligations should be accreted to expected future value over the remaining useful life of the of the corresponding components of the renewable energy facilities rather than the expected weighted-average life of the assets, consistent with the depreciation expense that is recorded on the asset retirement cost recognized within renewable energy facilities and using its estimate of the future timing of settlement. This change resulted in a $15.7 million reduction in the Company’s asset retirement obligation and corresponding renewable energy facility carrying amount as of December 31, 2018. The Company also recorded an adjustment during the fourth quarter of 2018 to reduce previously reported accretion and depreciation expense by $6.3 million as a result of this change, of which $4.4 million of the accretion and depreciation expense reduction related to amounts previously reported for the years ended December 31, 2017, 2016 and 2015. The quarterly accretion and depreciation expense reduction that relates to each of the first three quarters of 2018 was approximately $0.5 million. Management performed an assessment of the balance sheet and income statement impact on its previously issued filings and determined it to be immaterial.

Revenue From Contracts With Customers

Adoption of Topic 606

In May 2014, the Financial Accounting Standards Board (“FASB”) issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606), which replaces most existing revenue recognition guidance in U.S. GAAP and requires an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. Additionally, the new standard requires an entity to disclose additional quantitative and qualitative information regarding the nature and amount of revenues arising from contracts with customers, as well as other information about the significant judgments and estimates used in recognizing revenues from contracts with customers. In March 2016, the FASB issued ASU No. 2016-08, Revenue from Contracts with Customers (Topic 606), Principal versus Agent Considerations (Reporting Revenue Gross versus Net), which clarifies how to apply the implementation guidance on principal versus agent considerations related to the sale of goods or services to a customer as updated by ASU No. 2014-09. The Company adopted these standards as of January 1, 2018, which it collectively refers to as “Topic 606.” The Company analyzed the impact of Topic 606 on its revenue contracts which primarily include bundled energy and incentive sales through PPAs, individual REC sales, and upfront sales of federal & state incentive benefits recorded. The Company elected to apply a modified retrospective approach with a cumulative-effect adjustment to accumulated deficit recognized as of January 1, 2018 for changes to revenue recognition resulting from Topic 606 adoption as described below. The Company adopted Topic 606 for all revenue contracts in scope that had future performance obligations at January 1, 2018, and elected to use the contract modification practical expedient for purposes of computing the cumulative transition adjustment.
The Company accounts for the majority of its PPAs as operating leases under ASC 840, Leases and recognizes rental income as revenue when the electricity is delivered. The Company elected not to early adopt ASC 842, Leases in fiscal 2018. The expected impact of the adoption of the new lease standard is discussed below. For PPAs under the scope of Topic 606 in fiscal 2018, the Company concluded that there were no material changes to revenue recognition patterns from existing accounting practice. See below for the revenue recognition policy of PPAs.