Virginia Natural Gas introduces an innovative program that will help you do your part for the environment by conserving energy while you save on your natural gas bill — energySMART. We believe that by helping our customers conserve energy, we all benefit. Using natural gas reduces greenhouse emissions and particulates in the air, thus protecting our environment. It is the cleanest-burning fossil fuel with 45 percent fewer CO2 emissions than coal and is also extremely efficient — 90 percent of natural gas is delivered to appliances as useable energy compared to only one-third of electricity.Our energySMART program offers several convenient ways for customers to reduce their energy use: