off-peak prices, negative numbers

Hi Christian! I wanted to ask you a few questions about the occurrence of
negative pricing on the west desk. I'm getting a differenct response on the
east desk. Although my interest is financial trading, you may have
experieced this issue on the physical side (Jeff Hodge has not). In the past
on the west desk financial trading, any prices which are negative are deemed
to be "0" (so an average of hourly prices could include some zeroes). The
east desk wants to add in the negative numbers. Please call me to discuss.
I'd really appreciate it. Sara