Harvard University formed Harvard Dedicated Energy Limited (HDEL) to serve the electric needs of Harvard's schools and departments.  HDEL provides access to the wholesale electric market as well as a greater level of flexibility to meet supply needs.  HDEL’s goal is to purchase energy in an economically efficient manner, while appropriately managing risk and price volatility.  A "portfolio approach" has been developed which allows the purchase of power from a series of electricity providers in different quantities and for different time periods.  Our portfolio also includes a significant amount of renewable energy, currently 13% of the total purchase.