| http://www.w3.org/ns/prov#value | - The main disadvantage is that there is really no means by which the lender or PPA investor (PPA is a form of financing, in which the PPA investor is a lender) may insure, or increase the likelihood, that the consumer will repay a loan, i.e., make payments for power purchased under a PPA agreement (both lender and PPA investor are also lending entities).
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