{"data":{"id":"us/10-cfr-434.512","jurisdiction":"us","citation":"10 CFR 434.512","heading":"Internal loads.","body":"512.1 The systems and types of energy specified in this section are provided only for purposes of calculating the Energy Cost Budget. They are not requirements for either systems or the type of energy to be used in the Proposed Design or for calculation of Design Energy Cost.\n512.2 Internal loads for multi-family high-rise residential buildings are prescribed in Tables 512.2.a and b, Multi-Family High Rise Residential Building Schedules. Internal loads for other building types shall be modeled as noted in this subsection.\nTable 512.2. a—Multi-Family High Rise Residential Buildings Schedules—One-Zone Dwelling Unit\n[Internal loads per dwelling unit Btu/h]\nHour Occupants Lights Equipment\nSensible Latent Sensible Sensible Latent\n1 300 260 0 750 110\n2 300 260 0 750 110\n3 300 260 0 750 110\n4 300 260 0 750 110\n5 300 260 0 750 110\n6 300 260 0 750 110\n7 300 260 0 750 110\n8 210 260 980 1250 190\n9 100 80 840 2600 420\n10 100 80 0 1170 180\n11 100 80 0 1270 190\n12 100 80 0 2210 330\n13 100 80 0 2210 330\n14 100 80 0 1270 190\n15 100 80 0 1270 190\n16 100 80 0 1270 190\n17 100 80 0 1270 190\n18 300 260 0 3040 450\n19 300 260 0 3360 500\n20 300 260 960 1490 220\n21 300 260 960 1490 220\n22 300 260 960 1490 220\n23 300 260 960 1060 160\n24 300 260 960 1060 160\nTable 512.2. b—Multi-Family High Rise Residential Building Schedules-Two-Zone Dwelling Unit\n[Internal loads per dwelling unit Btu/h]\nHour Bedrooms \u0026 bathrooms Other rooms\nOccupants Lights Equipment Occupants Lights Equipment\nSensible Latent Sensible Sensible Latent Sensible Latent Sensible Sensible Latent\n1 300 260 0 750 110\n2 300 260 0 750 110\n3 300 260 0 750 110\n4 300 260 0 750 110\n5 300 260 0 750 110\n6 300 260 0 750 110\n7 300 260 0 750 110\n8 210 260 980 1250 190\n9 100 80 840 2600 420\n10 100 80 0 1170 180\n11 100 80 0 1270 190\n12 100 80 0 2210 330\n13 100 80 0 2210 330\n14 100 80 0 1270 190\n15 100 80 0 1270 190\n16 100 80 0 1270 190\n17 100 80 0 1270 190\n18 300 260 0 3040 450\n19 300 260 0 3360 500\n20 300 260 960 1490 220\n21 300 260 960 1490 220\n22 300 260 960 1490 220\n23 300 260 960 1060 160\n24 300 260 960 1060 160\nTable 512.2. b—Multi-Family High Rise Residential Building Schedules-Two-Zone Dwelling Unit\n[Internal loads per dwelling unit Btu/h]\nHour Bedrooms \u0026 bathrooms Other rooms\nOccupants Lights Equipment Occupants Lights Equipment\nSensible Latent Sensible Sensible Latent Sensible Latent Sensible Sensible Latent\n1 300 260 0 100 20 0 0 0 650 90\n2 300 260 0 100 20 0 0 0 650 90\n3 300 260 0 100 20 0 0 0 650 90\n4 300 260 0 100 20 0 0 0 650 90\n5 300 260 0 100 20 0 0 0 650 90\n6 300 260 0 100 20 0 0 0 650 90\n7 200 180 680 200 40 100 80 300 1050 150\n8 110 120 240 200 40 100 80 600 2400 380\n9 0 0 0 100 20 100 80 0 1070 160\n0 0 0 0 100 20 100 80 0 1170 170\n0 0 0 0 100 20 100 80 0 1170 170\n0 0 0 0 100 20 100 80 0 2110 310\n0 0 0 0 100 20 100 80 0 2110 310\n14 0 0 0 100 20 100 80 0 1170 170\n15 0 0 0 100 20 100 80 0 1170 170\n16 0 0 0 100 20 100 80 0 1170 170\n17 0 0 0 100 20 100 80 0 1170 170\n18 0 0 0 100 20 300 260 0 2940 430\n19 0 0 0 100 20 300 260 0 3260 480\n20 100 80 320 300 60 200 180 640 1190 160\n21 100 80 320 300 60 200 180 640 1190 160\n22 150 130 480 700 90 150 130 480 790 130\n23 300 260 640 410 70 0 0 320 650 90\n24 300 260 640 410 70 0 0 320 650 90","path":["Title 10—Energy","CHAPTER II—DEPARTMENT OF ENERGY","SUBCHAPTER D—ENERGY CONSERVATION","PART 434—ENERGY CODE FOR NEW FEDERAL COMMERCIAL AND MULTI-FAMILY HIGH RISE RESIDENTIAL BUILDINGS","Subpart E—Building Energy Cost Compliance Alternative"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-10.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:24:09Z","sha256":"c229a3c7544d454be9ec87648d9b4a98c8077ee7901b78b5779fd3901d22c090","source_id":"us-cfr","stale":true,"prev":"us/10-cfr-434.511","next":"us/10-cfr-434.513"},"notice":"GroundRules: Original legal text. Not legal advice."}