Leasing office space would then be similar to buying a car where customers base their decision on both a sticker price and a fuel efficiency rating. Tenants will be able to compare not just the lease rate of a building, but it’s Energy Efficiency Benchmark. This additional information will provide tenants a relative measure of their energy costs and it will create a more transparent real estate market in which building owners compete for tenants not just on lease rates but on the energy efficiency of their buildings. Eventually energy efficient buildings will command higher lease rates than buildings that are energy hogs.