In the abstract I guess, but the current pegging regime of China is to peg at a discount against a basket of foreign currencies, which eliminates the risk that they will be unable to maintain the peg. The risks that a creditor raising funds in US$ and having their electricity bought in Yuan Renminbi faces are (1) that China opts to increase the discount at which they are pegging, and (2) that China opts to reduce the weight of the US$ in the currency basket that they peg against, opening up the Yuan Renminbi / US$ exchange rate to greater volatility.

I've been accused of being a Marxist, yet while Harpo's my favourite, it's Groucho I'm always quoting. Odd, that.