projected benefits of federal energy efficiency and renewable programs fy 2005 2050 appendix c page 1 gpra05 building technologies program documentation introduction table outlines the activities characterized for characterizations inputs these were provided to eere as s integrated modeling effort subprograms projects subprogram project activity research & development america residential buildings integration codes commercial lighting r&d controls solid state refrigeration res hvac dist system adv elec hpwh space conditioning refrigerant meter appliances emerging tech roof top ac recessed can lights r lamp window electrochromic windows superwindows envelope low e market acceptance analysis tools design strategies