{
  "$schema": "http://json-schema.org/draft-07/schema",
  "build_version": "v10.06.005",
  "title": "NEAT Output",
  "description": "National Energy Audit Tool analysis output",
  "type": "object",
  "additionalProperties": false,

  "required": [
    "audit_number",
    "audit_id",
    "no_cond_stories",
    "floor_area",
    "energy_calc_counter",
    "energy_delta_counter",

    "num_measure",
    "measures",

    "num_measure_material",
    "mmaterial",

    "num_an_sav",
    "an_sav",

    "num_sir",
    "sir",

    "num_material",
    "material",

    "num_an_load",
    "an_load",

    "num_message",
    "message",

    "num_manj",
    "manj",

    "num_used_fuel",
    "used_fuel"
  ],

  "properties": {

    "audit_type": {
      "const": "NEAT"
    },

    "audit_number": {
      "type": "integer",
      "minimum": 1,
      "title": "Audit Number",
      "description": "The integer numeric identifier requried for the audit record, also mirrored in output but otherwise not used in analysis"
    },
    "audit_id": {
      "type": "integer",
      "minimum": 1,
      "title": "Audit ID",
      "description": "An optional integer numeric identifier for the audit, mirrored in output, but otherwise unused in analysis"
    },
    "no_cond_stories": {
      "type": "number",
      "minimum": 1,
      "maximum": 4,
      "description": "Number of conditioned stories",
      "examples": [1, 1.5, 2]
    },
    "floor_area": {
      "type": "number",
      "minimum": 300,
      "maximum": 24000,
      "description": "Living space floor area (sqft)"
    },

    "energy_calc_counter": {
      "type": "integer",
      "description": "How many times did the bin method energy calculation/simulation get called"
    },

    "energy_delta_counter": {
      "type": "integer",
      "description": "How many times did the delta ua calculation get called"
    },

    "num_measure": {
      "type": "integer",
      "description": "The number of overall result measures (all reported measures)"
    },
    "measures": {
      "$ref": "#/definitions/measures"
    },

    "num_measure_material": {
      "type": "integer",
      "description": "The number of overall result measure materials (all reported measures)"
    },
    "mmaterial": {
      "$ref": "#/definitions/mmaterial"
    },

    "num_an_sav": {
      "type": "integer",
      "description": "The number of recommended measures in annual savings table"
    },
    "an_sav": {
      "$ref": "#/definitions/an_sav"
    },

    "num_an_asav": {
      "type": "integer",
      "description": "The number of recommended measures in annual savings table, adjusted with utility billing"
    },
    "an_asav": {
      "$ref": "#/definitions/an_asav"
    },

    "num_sir": {
      "type": "integer",
      "description": "The number of recommended measures in SIR economics table"
    },
    "sir": {
      "$ref": "#/definitions/sir"
    },

    "num_asir": {
      "type": "integer",
      "description": "The number of recommended measures in SIR economics table, adjusted with utility billing"
    },
    "asir": {
      "$ref": "#/definitions/asir"
    },

    "num_material": {
      "type": "integer",
      "description": "The number of records in material table"
    },
    "material": {
      "$ref": "#/definitions/material"
    },

    "num_amaterial": {
      "type": "integer",
      "description": "The number of records in material table, adjusted with utility billing"
    },
    "amaterial": {
      "$ref": "#/definitions/amaterial"
    },

    "num_an_load": {
      "type": "integer",
      "description": "The number of records in annual loads summary"
    },
    "an_load": {
      "$ref": "#/definitions/an_load"
    },

    "num_message": {
      "type": "integer",
      "description": "The number of extra message strings"
    },
    "message": {
      "$ref": "#/definitions/message"
    },

    "num_manj": {
      "type": "integer",
      "description": "The number of ASHRAE Manual J results"
    },
    "manj": {
      "$ref": "#/definitions/manj"
    },

    "heat_comp_units": {
      "type": "string",
      "minLength": 0,
      "maxLength": 20,
      "description": "Units for heating energy utility bill comparison consumption"
    },
    "heat_dd_base": {
      "type": "integer",
      "description": "Heating base temperature degree days"
    },
    "num_heat_comp": {
      "type": "integer",
      "description": "Number of heating bills in comparison"
    },
    "heat_comp": {
      "$ref": "#/definitions/heat_comp"
    },

    "cool_comp_units": {
      "type": "string",
      "minLength": 0,
      "maxLength": 20,
      "description": "Units for cooling energy utility bill comparison consumption"
    },
    "cool_dd_base": {
      "type": "integer",
      "description": "Cooling base temperature degree days"
    },
    "num_cool_comp": {
      "type": "integer",
      "description": "Number of cooling bills in comparison"
    },
    "cool_comp": {
      "$ref": "#/definitions/cool_comp"
    },

    "num_used_fuel": {
      "type": "integer",
      "description": "The number fuel types were used"
    },
    "used_fuel": {
      "$ref": "#/definitions/used_fuel"
    }
  },

  "definitions": {

    "measures": {
      "type": "array",
      "description": "The list of energy conservation measures",
      "uniqueItems": true,
      "items": {
        "type": "object",
        "properties": {
          "index": {
            "type": "integer",
            "description": "PK for the main set of measures, base 1"
          },
          "measure_id": {
            "type": "integer",
            "description": "Fixed measure id.  The index into the JSON input measure_active_flags[] array for this measure"
          },
          "audit_section_id": {
            "type": ["integer", "string"],
            "enum": [
              64, "audit",
               1, "wall",
              60, "window",
              61, "door",
               3, "unfinished_attic",
               4, "finished_attic",
               6, "foundation",
              24, "ducts_and_infiltration",
              28, "water_heating",
              30, "refrigerator",
              32, "lighting",
              34, "health_and_safety",
              36, "itemized_cost",
              75, "hvac",
              76, "duct"
            ],
            "title": "NEAT Audit Section ID",
            "description": "What part of the audit does this measure apply to. The IDs are listed in order of appearance in the audit, MATCH in neat/definition.h"
          },
          "component_id": {
            "type": "number",
            "minimum": 0,
            "maximum": 2147483647,
            "title": "An optional identifier string that passes through the analysis",
            "description": "An optional identifier string used to identify an input record (e.g. Itemized Cost)"
          }, 
          "measure": {
            "type": "string",
            "minLength": 1,
            "maxLength": 80,
            "description": "The name of the measure"
          },
          "components": {
            "type": "string",
            "minLength": 0,
            "maxLength": 255,
            "description": "The list of comma separated component codes effected by the measure"
          },
          "heating_mmbtu": {
            "type": "number",
            "description": "Annual heating energy savings (MMBtu)"
          },
          "heating_sav": {
            "type": "number",
            "description": "Annual heating savings ($)"
          },
          "cooling_kwh": {
            "type": "number",
            "description": "Annual cooling energy savings (kWh)"
          },
          "cooling_sav": {
            "type": "number",
            "description": "Annual cooling savings ($)"
          },
          "baseload_kwh": {
            "type": "number",
            "description": "Annual baseload energy savings (kWh)"
          },
          "baseload_sav": {
            "type": "number",
            "description": "Annual baseload savings ($)"
          },
          "total_mmbtu": {
            "type": "number",
            "description": "Total annual energy savings (MMBtu)"
          },
          "savings": {
            "type": "number",
            "description": "Total annual savings ($)"
          },
          "cost": {
            "type": "number",
            "description": "Total initial cost ($)"
          },
          "sir": {
            "type": "number",
            "description": "Life cycle Savings to Investment Ratio"
          },
          "lifetime": {
            "type": "integer",
            "description": "lifetime of the SIR calculation for the measure (years)"
          },
          "qtym": {
            "type": "number",
            "description": "The unit quantity of the material used"
          },
          "qtyl": {
            "type": "number",
            "description": "The unit quantity of the labor used (hr)"
          },
          "qtyi": {
            "type": "number",
            "description": "The unit quantity of any associated item cost"
          },
          "costum": {
            "type": "number",
            "description": "The unit material cost ($)"
          },
          "costul": {
            "type": "number",
            "description": "The unit labor cost ($/hr)"
          },
          "costi1": {
            "type": "number",
            "description": "The unit item cost ($)"
          },
          "costi2": {
            "type": "number",
            "description": "A second added cost ($)"
          },
          "desci2": {
            "type": "string",
            "minLength": 0,
            "maxLength": 80,
            "description": "Description of the costi2 item"
          },
          "typei2": {
            "type": ["integer", "string"],
            "enum": [
               0, "none",
               1, "insulation",
               2, "miscellaneous_supplies",
               3, "windows",
               4, "heating_equipment",
               5, "cooling_equipment",
               6, "refrigerators",
               7, "hot_water_equipment",
               8, "lighting",
               10, "labor",
               11, "construction_materials_or_hardware",
               12, "doors",
               13, "health_and_safety_items",
               100, "other",
               101, "unspecified"
            ],
            "title": "Material Type ID",
            "description": "A fixed ID describing the type of material for costi2"
          },
          "costi3": {
            "type": "number",
            "description": "A third added cost ($)"
          },
          "desci3": {
            "type": "string",
            "minLength": 0,
            "maxLength": 80,
            "description": "Description of the costi3 item"
          },
          "typei3": {
            "type": ["integer", "string"],
            "enum": [
               0, "none",
               1, "insulation",
               2, "miscellaneous_supplies",
               3, "windows",
               4, "heating_equipment",
               5, "cooling_equipment",
               6, "refrigerators",
               7, "hot_water_equipment",
               8, "lighting",
               10, "labor",
               11, "construction_materials_or_hardware",
               12, "doors",
               13, "health_and_safety_items",
               100, "other",
               101, "unspecified"
            ],
            "title": "Material Type ID",
            "description": "A fixed ID describing the type of material for costi3"
          }
        },
        "required": [
          "index",
          "measure_id",
          "audit_section_id",
          "component_id",
          "measure",
          "components",
          "heating_mmbtu",
          "heating_sav",
          "cooling_kwh",
          "cooling_sav",
          "baseload_kwh",
          "baseload_sav",
          "total_mmbtu",
          "savings",
          "cost",
          "sir",
          "qtym",
          "qtyl",
          "qtyi",
          "costum",
          "costul",
          "costi1",
          "costi2",
          "desci2",
          "typei2",
          "costi3",
          "desci3",
          "typei3"
        ]
      }
    },

    "mmaterial": {
      "type": "array",
      "description": "Some measures have their costs detailed from this measure_materials detail array.",
      "uniqueItems": true,
      "items": {
        "type": "object",
        "properties": {
          "index": {
            "type": "integer",
            "description": "Simple counter for this array"
          },
          "measure_index": {
            "type": "integer",
            "description": "FK into the measures[] results index PK field for the measure associated with this detail record"
          },
          "material_id": {
            "type": "integer",
            "description": "Fixed material ID from the measure_costs[] JSON input"
          },
          "components": {
            "type": "string",
            "minLength": 0,
            "maxLength": 255,
            "description": "The list of comma separated component codes for this material detail"
          },
          "description": {
            "type": "string",
            "minLength": 0,
            "maxLength": 255,
            "description": "The description of the material"
          },
          "material_type_id": {
            "type": ["integer", "string"],
            "description": "Fixed material type number",
            "enum": [
              0, "Unspecified",
              1, "Insulation",
              2, "Miscellaneous Supplies",
              3, "Windows",
              4, "Heating Equipment",
              5, "Cooling Equipment",
              6, "Refrigerators",
              7, "Hot Water Equipment",
              8, "Lighting",
              10, "Labor",
              11, "Construction Materials/Hardware",
              12, "Doors",
              13, "Health and Safety Items",
              100, "Other"
            ]
          },
          "units": {
            "type": "string",
            "minLength": 0,
            "maxLength": 20,
            "description": "The description of the units"
          },
          "qty_est": {
            "type": "number",
            "description": "Quantity of the material, estimated"
          },
          "unit_cost_est": {
            "type": "number",
            "description": "Unit cost, estimated"
          },
          "comment": {
            "type": "string",
            "minLength": 0,
            "maxLength": 80,
            "description": "Additional comments about measure material"
          }
        },
        "required": [
          "index",
          "measure_index",
          "material_id",
          "material_type_id",
          "components",
          "description",
          "units",
          "qty_est",
          "unit_cost_est",
          "comment"
        ]
      }
    },

    "an_sav": {
      "type": "array",
      "description": "The list annual measure savings",
      "uniqueItems": true,
      "items": {
        "type": "object",
        "properties": {
          "index": {
            "type": "integer",
            "description": "Simple counter for this array"
          },
          "measure_index": {
            "type": "integer",
            "description": "FK into the measures[] results index PK field"
          },
          "measure": {
            "type": "string",
            "minLength": 0,
            "maxLength": 80,
            "description": "Measure name"
          },
          "components": {
            "type": "string",
            "minLength": 0,
            "maxLength": 255,
            "description": "The comma separated list of component codes effected"
          },
          "heating_mmbtu": {
            "type": "number",
            "description": "Annual heating energy savings (MMBtu)"
          },
          "heating_sav": {
            "type": "number",
            "description": "Annual heating savings ($)"
          },
          "cooling_kwh": {
            "type": "number",
            "description": "Annual cooling energy savings (kWh)"
          },
          "cooling_sav": {
            "type": "number",
            "description": "Annual cooling savings ($)"
          },
          "baseload_kwh": {
            "type": "number",
            "description": "Annual baseload energy savings (kWh)"
          },
          "baseload_sav": {
            "type": "number",
            "description": "Annual baseload savings ($)"
          },
          "total_mmbtu": {
            "type": "number",
            "description": "Total annual energy savings (MMBtu)"
          },
          "total_lc_sav": {
            "type": "number",
            "description": "Total life time savings ($)"
          }         
        },
        "required": [
          "index",
          "measure_index",
          "measure",
          "components",
          "heating_mmbtu",
          "heating_sav",
          "cooling_kwh",
          "cooling_sav",
          "baseload_kwh",
          "baseload_sav",
          "total_mmbtu"
        ]
      }
    },

    "an_asav": {
      "type": "array",
      "description": "The list annual measure savings, ADJUSTED with utility billing",
      "uniqueItems": true,
      "items": {
        "type": "object",
        "properties": {
          "index": {
            "type": "integer",
            "description": "Simple counter for this array"
          },
          "measure_index": {
            "type": "integer",
            "description": "FK into the measures[] results index PK field"
          },
          "measure": {
            "type": "string",
            "minLength": 0,
            "maxLength": 80,
            "description": "Measure name"
          },
          "components": {
            "type": "string",
            "minLength": 0,
            "maxLength": 255,
            "description": "The comma separated list of component codes effected"
          },
          "heating_mmbtu": {
            "type": "number",
            "description": "Annual heating energy savings (MMBtu)"
          },
          "heating_sav": {
            "type": "number",
            "description": "Annual heating savings ($)"
          },
          "cooling_kwh": {
            "type": "number",
            "description": "Annual cooling energy savings (kWh)"
          },
          "cooling_sav": {
            "type": "number",
            "description": "Annual cooling savings ($)"
          },
          "baseload_kwh": {
            "type": "number",
            "description": "Annual baseload energy savings (kWh)"
          },
          "baseload_sav": {
            "type": "number",
            "description": "Annual baseload savings ($)"
          },
          "total_mmbtu": {
            "type": "number",
            "description": "Total annual energy savings (MMBtu)"
          }
        },
        "required": [
          "index",
          "measure_index",
          "measure",
          "components",
          "heating_mmbtu",
          "heating_sav",
          "cooling_kwh",
          "cooling_sav",
          "baseload_kwh",
          "baseload_sav",
          "total_mmbtu"
        ]
      }
    },

    "sir": {
      "type": "array",
      "description": "The life cycle Savings to Investment Ratio detail",
      "uniqueItems": true,
      "items": {
        "type": "object",
        "properties": {
          "index": {
            "type": "integer",
            "description": "Simple counter for this array"
          },
          "measure_index": {
            "type": "integer",
            "description": "FK into the measures[] results index PK field"
          },
          "group": {
            "type": ["integer", "string"],
            "description": "Measure Group",
            "enum": [
              1, "Incidental Repairs",
              2, "Energy Savings Measures",
              3, "Health and Safety"
            ]
          },
          "measure": {
            "type": "string",
            "minLength": 0,
            "maxLength": 80,
            "description": "Measure name"
          },
          "components": {
            "type": "string",
            "minLength": 0,
            "maxLength": 255,
            "description": "The comma separated list of component codes effected"
          },
          "savings": {
            "type": "number",
            "description": "Total annual heating and cooling savings ($)"
          },
          "cost": {
            "type": "number",
            "description": "Total initial costs ($)"
          },
          "sir": {
            "type": "number",
            "description": "Computed Savings to Investment Ratio"
          },
          "ccost": {
            "type": "number",
            "description": "Cummulative initial cost ($)"
          },
          "csir": {
            "type": "number",
            "description": "Cummulative life cycle SIR"
          },
          "npv": {
            "type": "number",
            "description": "Net Present Value"
          }          
        },
        "required": [
          "index",
          "measure_index",
          "group",
          "measure",
          "components",
          "savings",
          "cost",
          "sir",
          "ccost",
          "csir",
          "npv"
        ]
      }
    },

    "asir": {
      "type": "array",
      "description": "The life cycle Savings to Investment Ratio detail, ADJUSTED with utility billing",
      "uniqueItems": true,
      "items": {
        "type": "object",
        "properties": {
          "index": {
            "type": "integer",
            "description": "Simple counter for this array"
          },
          "measure_index": {
            "type": "integer",
            "description": "FK into the measures[] results index PK field"
          },
          "group": {
            "type": ["integer", "string"],
            "description": "Measure Group",
            "enum": [
              1, "Incidental Repairs",
              2, "Energy Savings Measures",
              3, "Health and Safety"
            ]
          },
          "measure": {
            "type": "string",
            "minLength": 0,
            "maxLength": 80,
            "description": "Measure name"
          },
          "components": {
            "type": "string",
            "minLength": 0,
            "maxLength": 255,
            "description": "The comma separated list of component codes effected"
          },
          "savings": {
            "type": "number",
            "description": "Total annual heating and cooling savings ($)"
          },
          "cost": {
            "type": "number",
            "description": "Total initial costs ($)"
          },
          "sir": {
            "type": "number",
            "description": "Computed Savings to Investment Ratio"
          },
          "ccost": {
            "type": "number",
            "description": "Cummulative cost ($)"
          },
          "csir": {
            "type": "number",
            "description": "Cummulative SIR"
          },
          "npv": {
            "type": "number",
            "description": "Net Present Value"
          }
        },
        "required": [
          "index",
          "measure_index",
          "group",
          "measure",
          "components",
          "savings",
          "cost",
          "sir",
          "ccost",
          "csir",
          "npv"
        ]
      }
    },

    "material": {
      "type": "array",
      "description": "The materials list",
      "uniqueItems": true,
      "items": {
        "type": "object",
        "properties": {
          "index": {
            "type": "integer",
            "description": "Simple counter for this array"
          },
          "measure_index": {
            "type": "integer",
            "description": "FK into the measures results index PK field"
          },
          "material_id": {
            "type": "integer",
            "description": "Fixed material ID from the measure_costs[] JSON input"
          },
          "material": {
            "type": "string",
            "minLength": 0,
            "maxLength": 80,
            "description": "Material name"
          },
          "type": {
            "type": "string",
            "minLength": 0,
            "maxLength": 80,
            "description": "Material type"
          },
          "quantity": {
            "type": "number",
            "description": "How many material items"
          },
          "units": {
            "type": "string",
            "minLength": 0,
            "maxLength": 20,
            "description": "Material quantity units"
          },
          "qtymat": {
            "type": "number",
            "description": "TThe quantity of the material itself"
          },
          "qtyhrs": {
            "type": "number",
            "description": "The number of labor hours associated"
          },
          "qtyeach": {
            "type": "number",
            "description": "Quantity of any associated Item Cost"
          }
        },
        "required": [
          "index",
          "measure_index",
          "material_id",
          "material",
          "type",
          "quantity",
          "units",
          "qtymat",
          "qtyhrs",
          "qtyeach"
        ]
      }
    },

    "amaterial": {
      "type": "array",
      "description": "The materials list, ADJUSTED with utility billing",
      "uniqueItems": true,
      "items": {
        "type": "object",
        "properties": {
          "index": {
            "type": "integer",
            "description": "Simple counter for this array"
          },
          "measure_index": {
            "type": "integer",
            "description": "FK into the measures results index PK field"
          },
          "material_id": {
            "type": "integer",
            "description": "Fixed material ID from the measure_costs[] JSON input"
          },
          "material": {
            "type": "string",
            "minLength": 0,
            "maxLength": 80,
            "description": "Material name"
          },
          "type": {
            "type": "string",
            "minLength": 0,
            "maxLength": 80,
            "description": "Material type"
          },
          "quantity": {
            "type": "number",
            "description": "How many material items"
          },
          "units": {
            "type": "string",
            "minLength": 0,
            "maxLength": 20,
            "description": "Material quantity units"
          },
          "qtymat": {
            "type": "number",
            "description": "TThe quantity of the material itself"
          },
          "qtyhrs": {
            "type": "number",
            "description": "The number of labor hours associated"
          },
          "qtyeach": {
            "type": "number",
            "description": "Quantity of any associated Item Cost"
          }
        },
        "required": [
          "index",
          "measure_index",
          "material_id",
          "material",
          "type",
          "quantity",
          "units",
          "qtymat",
          "qtyhrs",
          "qtyeach"
        ]
      }
    },

    "an_load": {
      "type": "array",
      "description": "The overall annual load list",
      "uniqueItems": true,
      "items": {
        "type": "object",
        "properties": {
          "index": {
            "type": "integer",
            "description": "Simple counter for this array"
          },
          "name": {
            "type": "string",
            "minLength": 0,
            "maxLength": 80,
            "description": "Name of the load and energy units"
          },
          "pre_heat": {
            "type": "number",
            "description": "Pre retrofit heating (kBtu/h)"
          },
          "pre_cool": {
            "type": "number",
            "description": "Pre retrofit cooling (ton)"
          },
          "post_heat": {
            "type": "number",
            "description": "Post retrofit heating (kBtu/h)"
          },
          "post_cool": {
            "type": "number",
            "description": "Post retrofit cooling (ton)"
          }
        },
        "required": [
          "index",
          "name",
          "pre_heat",
          "pre_cool",
          "post_heat",
          "post_cool"
        ]
      }
    },

    "message": {
      "type": "array",
      "description": "The list of extra message strings from the analysis",
      "uniqueItems": true,
      "items": {
        "type": "object",
        "properties": {
          "index": {
            "type": "integer",
            "description": "Simple counter for this array"
          },
          "msg": {
            "type": "string",
            "minLength": 0,
            "maxLength": 512,
            "description": "Extra messages and notes from analysis"
          }
        },
        "required": [
          "index",
          "msg"
        ]
      }
    },

    "manj": {
      "type": "array",
      "description": "The number of ASHRAE Manual J results",
      "uniqueItems": true,
      "items": {
        "type": "object",
        "properties": {
          "index": {
            "type": "integer",
            "description": "Simple counter for this array"
          },
          "heatcool": {
            "type": "string",
            "minLength": 0,
            "maxLength": 5,
            "description": "Heat or Cool"
          },
          "type": {
            "type": "string",
            "minLength": 0,
            "maxLength": 51,
            "description": "Component type (wall, door etc..) and units for load"
          },
          "name": {
            "type": "string",
            "minLength": 0,
            "maxLength": 21,
            "description": "Name of dwelling component"
          },
          "area_vol": {
            "type": "number",
            "description": "Surface area or volume of component (SqFt or Cubic Foot)"
          },
          "pre_load": {
            "type": "number",
            "description": "Pre retrofit peak load (Btu/hr or tons)"
          },
          "post_load": {
            "type": "number",
            "description": "Post retrofit peak load (Btu/hr or tons)"
          }
        },
        "required": [
          "index",
          "heatcool",
          "type",
          "name",
          "area_vol",
          "pre_load",
          "post_load"
        ]
      }
    },

    "heat_comp": {
      "type": "array",
      "description": "Heating utility bill comparison",
      "uniqueItems": true,
      "items": {
        "type": "object",
        "properties": {
          "index": {
            "type": "integer",
            "description": "Simple counter for this array"
          },
          "year": {
            "type": "integer",
            "description": "Utility bill reading year"
          },
          "month": {
            "type": "integer",
            "description": "Utility bill reading month"
          },
          "day": {
            "type": "integer",
            "description": "Utility bill reading day"
          },
          "period_days": {
            "type": "integer",
            "description": "Utility bill reading period in days"
          },
          "consump_act": {
            "type": "integer",
            "description": "Actual consumption in units listed"
          },
          "consump_pred": {
            "type": "integer",
            "description": "Predicted consumption in units listed"
          },
          "dd_act": {
            "type": ["integer", "null"],
            "description": "Actual degree days or Null if not entered"
          },
          "dd_pred": {
            "type": "integer",
            "description": "Predicted degree days"
          }
        },
        "required": [
          "index",
          "year",
          "month",
          "day",
          "period_days",
          "consump_act",
          "consump_pred",
          "dd_act",
          "dd_pred"
        ]
      }
    },

    "cool_comp": {
      "type": "array",
      "description": "Cooling utility bill comparison",
      "uniqueItems": true,
      "items": {
        "type": "object",
        "properties": {
          "index": {
            "type": "integer",
            "description": "Simple counter for this array"
          },
          "year": {
            "type": "integer",
            "description": "Utility bill reading year"
          },
          "month": {
            "type": "integer",
            "description": "Utility bill reading month"
          },
          "day": {
            "type": "integer",
            "description": "Utility bill reading day"
          },
          "period_days": {
            "type": "integer",
            "description": "Utility bill reading period in days"
          },
          "consump_act": {
            "type": "integer",
            "description": "Actual consumption in units listed"
          },
          "consump_pred": {
            "type": "integer",
            "description": "Predicted consumption in units listed"
          },
          "dd_act": {
            "type": ["integer", "null"],
            "description": "Actual degree days or Null if not entered"
          },
          "dd_pred": {
            "type": "integer",
            "description": "Predicted degree days"
          }
        },
        "required": [
          "index",
          "year",
          "month",
          "day",
          "period_days",
          "consump_act",
          "consump_pred",
          "dd_act",
          "dd_pred"
        ]
      }
    },

    "used_fuel": {
      "type": "array",
      "description": "The list of fuels used and pricing",
      "uniqueItems": true,
      "items": {
        "type": "object",
        "properties": {
          "fuel_name": {
            "type": "string",
            "minLength": 1,
            "maxLength": 13,
            "description": "Name of the fuel used"
          },
          "fuel_cost": {
            "type": "number",
            "description": "Unit cost of fuel"
          },
          "fuel_cost_units": {
            "type": "string",
            "minLength": 1,
            "maxLength": 13,
            "description": "Fuel price units"
          },
          "fuel_cost_per_mmbtu": {
            "type": "number",
            "description": "Cost per MMBtu"
          }
        },
        "required": [
          "fuel_name",
          "fuel_cost",
          "fuel_cost_units",
          "fuel_cost_per_mmbtu"
        ]
      }
    }

  }
}