The exact differential for the various product option is difficult to estimate at this point. As the town develops its bid strategy, it will research the market an arrive a set of cost goals that will be acceptable for bids. The draft plan has four products, one of which is the standard product into which eligible accounts would be automatically enrolled. The other three products are optional products in which any customer could voluntarily enroll. The goal of the standard product is to cost the same or less than National Grid Last Resort Service and to have a small amount of additional (extra) renewable energy, above the current state minimums.