  State-of-charge (SoC) dependent bidding allows merchant storage participants
to incorporate SoC-dependent operation and opportunity costs in a bid-based
market clearing process. However, such a bid results in a non-convex cost
function in the multi-interval economic dispatch and market clearing, limiting
its implementation in practice. We show that a simple restriction on the
bidding format removes the non-convexity, making the multi-interval dispatch of
SoC-dependent bids a standard convex piece-wise linear program.
