Synergies/ROAM Consulting has assessed the costs of green energy policies from 2001-02 to 2013-14 on retail electricity costs, for both small (residential/small business) and large (consumption of greater than 5 gigawatt-hours (GWh) per annum) customers across the mainland National Electricity Market (NEM). This includes thousands of businesses, some that qualify for government assistance under the Renewable Energy Target (RET) and carbon price, and others that do not, such as non-trade exposed manufacturing, dairy farms, office buildings and large commercial outlets.