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Power purchase agreement
A power purchase agreement (PPA) is a contract between two parties, one which generates electricity (the seller) and one which is looking to purchase electricity (the buyer). The PPA defines all of the commercial terms for the sale of electricity between the two parties, including when the project will begin commercial operation, schedule for delivery of electricity, penalties for under delivery, payment terms, and termination. A PPA is the principal agreement that defines the revenue and credit quality of a generating project and is thus a key instrument of project finance. There are many forms of PPA in use today and they vary according to the needs of buyer, seller, and financing counterparties.〔Albert Thumann, Eric A. Woodroof Energy Project Financing: Resources and Strategies for Success - 2009- Page 93 "WHAT IS A POWER PURCHASE AGREEMENT (PPA)? A power purchase agreement is a long-term agreement to buy power from a company that produces electricity. A third-party financier will provide the capital to build, operate, and ..."〕〔D. R. Carmichael, Paul H. Rosenfield ''Accountants' Handbook, Special Industries and Special Topics'' 2003 Page 38 "The fact that an agreement is labeled a “power purchase agreement” is not conclusive. If a contract “conveys the right to use property, plant and equipment,” the contract should be accounted for as a lease. Other power purchase contracts.."〕
In the U.S., PPAs are typically subject to regulation by the Federal Energy Regulatory Commission (FERC). FERC determines which facilities applicable for PPAs under the Energy Policy Act of 2005.〔"(FERC )." FERC.gov. Web. 30 Nov. 2010.〕 PPAs facilitate the financing of distributed generation assets such as photovoltaic, microturbines, reciprocating engines, and fuel cells.
== Background ==
A power purchase agreement (PPA) is a legal contract between an electricity generator (provider) and a power purchaser (buyer, typically a utility or large power buyer/trader). Contractual terms may last anywhere between 5 and 20 years, during which time the power purchaser buys energy, and sometimes also capacity and/or ancillary services, from the electricity generator. Such agreements play a key role in the financing of independently owned (i.e. not owned by a utility) electricity generating assets. The seller under the PPA is typically an independent power producer, or "IPP."
In the case of distributed generation (where the generator is located on a building site and energy is sold to the building occupant), commercial PPAs have evolved as a variant that enables businesses, schools, and governments to purchase electricity directly from the generator rather than from the utility. This approach facilitates the financing of distributed generation assets such as photovoltaic, micro-turbines, reciprocating engines, and fuel cells.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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