New Delhi Reliance Power has made it clear that it will not go ahead with the implementation of its R17,500-crore Krishnapatnam ultra mega power project (UMPP) in Andhra Pradesh unless contracted buyers agree on tariff revision to accommodate the increase in fuel cost from the recent change in the Indonesian coal pricing law.

Sources said that the private developer has invoked the ‘force majeure’ clause of the power purchase agreement (PPA) and served notice on power procurers seeking negotiations for tariff revision.