Bin Calibration

This batch of simulations is what Mike previously called the “standard” homes. The point of these are to run an identical house in each and every weather station and use the resulting energy use to determine the climate ratios used to determine the bins.

Base Inputs

The HEScore inputs for the house are as follows:

'building_address': {
    'assessment_type': 'initial',
},
'building': {
    'about': {
        'assessment_date': dt.date.today().isoformat(),
        'shape': 'rectangle',
        'year_built': 2010,
        'number_bedrooms': 4,
        'num_floor_above_grade': 2,
        'floor_to_ceiling_height': 8,
        'conditioned_floor_area': 2000,
        'orientation': 'south',
        'blower_door_test': False,
        'air_sealing_present': True,
    },
    'zone': {
        'wall_construction_same': False,
        'window_construction_same': False,
        'zone_roof': [
            {
                'roof_name': 'roof1',
                'roof_area': 1000,
                'roof_assembly_code': 'rfwf00co',
                'roof_color': 'medium',
                'roof_type': 'vented_attic',
                'ceiling_assembly_code': 'ecwf30',
                'zone_skylight': {
                    'skylight_area': 0,
                }
            }
        ],
        'zone_floor': [
            {
                'floor_name': 'floor1',
                'floor_area': 1000,
                'foundation_type': 'vented_crawl',
                'foundation_insulation_level': 0,
                'floor_assembly_code': 'efwf19ca',
            }
        ],
        'zone_wall': [
            {
                'wall_assembly_code': 'ewwf13vi',
                'zone_window': {
                    'window_method': 'custom',
                    'window_u_value': 0.65,
                    'window_shgc': 0.4,
                }
            }
        ]
    },
    'systems': {
        'hvac': [
            {
                'hvac_name': 'hvac1',
                'hvac_fraction': 1,
                'heating': {
                    'efficiency_method': 'user'
                },
                'cooling': {
                    'efficiency_method': 'user',
                    'efficiency': 13,
                },
                'hvac_distribution': [
                    {
                        'name': 'duct1',
                        'location': 'cond_space',
                        'fraction': 100,
                        'insulated': True,
                        'sealed': True
                    }
                ]
            }
        ],
        'domestic_hot_water': {
            'category': 'unit',
            'type': 'storage',
            'efficiency_method': 'user'
        }
    }
}

The building characteristics mostly based on fuel type are:

Natural Gas

  • Heating System: 80 AFUE Central Furnace
  • Cooling System: 13 SEER Central Air Conditioner
  • Hot Water: 0.575 EF Natural Gas Tank Water Heater

Electric

  • Heating/Cooling System: 7.7 HSPF, 13 SEER Heat Pump
  • Hot Water: 0.9 EF Electric Tank Water Heater

Window Areas

  • The front and back have 88 sq.ft.
  • The right and left have 52 sq.ft.