South Africa's state-owned utility Eskom will review its plan to raise tariffs on power in light of the global financial turmoil, the company's spokesperson said on Thursday.

Eskom, which provides 95 percent of South Africa's power, said it would raise tariffs as part of its efforts to raise money for its R343-billion new power investment programme.

"The recent international financial and economic developments have necessitated that we review our assumptions that underpin the tariff application," spokesperson Fani Zulu said in an emailed statement.

He did not elaborate on what the review would entail.