Residential demand

Sixteen end-use services
Three housing types
Thirty–four end–use technologies

Nine Census divisions

Commercial demand

Ten end–use services
Eleven building types
Ten distributed generation technologies
Sixty–four end-use technologies

Nine Census divisions

Industrial demand

Seven energy–intensive industries
Eight non–energy–intensive industries
Cogeneration

Four Census regions, shared to nine
  Census  divisions

Transportation demand

Six car sizes
Six light truck sizes
Sixty–three conventional fuel-saving technologies
  for light–duty vehicles
Gasoline, diesel, and thirteen alternative–fuel
  vehicle technologies for light-duty vehicles
Twenty vintages for light-duty vehicles
Narrow and wide–body aircraft
Six advanced aircraft technologies
Medium and heavy freight trucks
Thirty–seven advanced freight truck technologie

Nine Census divisions

Electricity

Eleven fossil generation technologies
Two distributed generation technologies
Seven renewable generation technologies
Conventional and advanced nuclear
Marginal and average cost pricing
Generation capacity expansion
Seven environmental control technologies

Fifteen electricity supply regions (including
 Alaska and Hawaii) based on the North
  American Electric Reliability Council regions
  and subregions
Nine Census divisions for demand

Renewables

Wind, geothermal, solar thermal, solar photovoltaic,
  landfill gas, biomass, conventional hydropower

Fifteen electricity supply regions

Oil supply

Onshore
Deep and shallow offshore

Six lower 48 onshore regions
Three lower 48 offshore regions
Three Alaska regions

Natural gas supply

Conventional lower–48 onshore
Lower–48 deep and shallow offshore
Coalbed methane
Gas shales
Tight sands
Canadian, Mexican, and liquefied natural gas
Alaskan Gas

Six lower 48 onshore regions
Three lower 48 offshore regions
Three Alaska regions
Eight liquefied natural gas import regions

Natural gas transmission
  and distribution

Core vs. noncore
Peak vs. offpeak
Pipeline capacity expansion

Twelve lower 48 regions
Ten pipeline border points

Refining

Five crude oil categories
Fourteen product categories
More than 40 distinct technologies
Refinery capacity expansion

Three refinery regions aggregated
  from Petroleum Administration for Defense
  Districts

Coal supply

Three sulfur categories
Four thermal categories
Underground and surface mining types
Imports and Exports

Eleven supply regions
Sixteen demand regions
Sixteen export regions
Twenty import regions