The purpose of this paper is two-fold: Firstly, we analyze option value approximation of traded options in the presence of a volatility term structure. The options are identified as: European (written on the forward price of a future flow delivery); and (ii) Asian. Both types are in fact written on (arithmetic) price averages. Secondly, adopting a 3-factor model for market risk which is compatible with the valuation results, we discuss risk manage- ment in the electricity market within the Value at Risk concept. The analysis is illustrated by numerical cases from the Norwegian electricity derivatives market.