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The Account Cost Calculation endpoint calculates the cost of electricity, solar PV, or natural gas for a given tariff for a given amount of usage over a specified period of time. This can be used to calculate a bill, "what-if" different rates, levels of usage, energy efficiency measures, or any other electrical activity.

To run the calculation, the service needs to know what tariff to use and the inputs that drive the rates. These inputs typically include consumption (kWh) but can also include other values such as:

  • demand (kW)
  • applicability criteria, e.g. whether the consumer lives inside or outside of city limits
  • quantity of other items, e.g. tariffs that are priced based on the number of billing meters at the facility

The accuracy of the calculation is dependent on the accuracy and granularity of the inputs the calculator uses. For example, a time-of-use (TOU) tariff will have different prices depending on the time of day the consumption occurred. Passing in an hourly load profile will generate very accurate calculations. On the other hand, passing in an aggregate consumption such as the monthly total will generate a less accurate calculation since we do not know precisely at what time of the day this consumption occurred. When you don't pass in all of the information that is required, the calculator will make a best guess to a value to use (e.g. it will estimate the TOU breakdown of your energy usage). You can look at the assumptions we made during the calculation by looking at the aptly named assumption section of the calculation results returned.

Data Definitions

Calculated Cost

The CalculatedCost object contains the results of the calculation. The totalCost field holds the overall cost while the details of the calculation are contained within a list of CalculatedCostItem(s).

NameTypeFieldsDescription
masterTariffIdLongMUnique Arcadia ID for the master tariff of this calculation's tariff.
tariffNameStringMThe name of this tariff.
totalCostDecimalMTotal summed up cost of all cost items (see below).
fromDateTimeDateTimeMThe start date and time of this calculation.
toDateTimeDateTimeMThe end date and time of this calculation.
accuracyDecimalMA decimal value between 0 and 1 represents the accuracy of the calculation. As more "best guess" assumptions are made, the calculation will become less accurate and the accuracy field will be smaller.
currencyStringThe currency is represented in the calculation.
calculationIdStringMUnique identifier for this calculation.
summaryMapSummary of cost and resource totals.
itemsArray of CalculatedCostItemMBreakdown of the summary data with variable granularity and grouping.
assumptionsArray of PropertyDataThe properties, modeling assumptions, and other key info used in the calculation.
{  
    "masterTariffId": 522,  
    "tariffName": "Residential",  
    "totalCost": 198.35,  
    "fromDateTime": "2013-12-01T00:00:00-08:00",  
    "toDateTime": "2014-01-01T00:00:00-08:00",  
    "accuracy": 1,  
    "currency": "USD",  
    "calculationId": "67afe5d7-19f1-4c35-8e83-6868f6402da8",  
    "summary": {  
        "subTotalCost": 198.35,  
        "taxCost": 0,  
        "totalCost": 198.35,  
        "adjustedTotalCost": 198.64,  
        "kWh": 1000,  
        "kW": 0  
    },  
    "items": [...],  
    "assumptions": [...]  
}  

Calculated Cost Item

The calculated cost items contain the details of the calculations. There is one CalculatedCostItem object for each tariff rate that is included in the calculation.

NameTypeFieldsDescription
tariffIdLongEUnique Arcadia ID for the tariff associated with this cost item.
tariffRateIdLongMUnique Arcadia ID for the tariff rate associated with this cost item.
tariffRateBandIdLongMUnique Arcadia ID for the band associated with this cost item.
rateSequenceNumberIntegerMThe sequence number of the rate group that the tariff rate belongs to.
rateGroupNameStringMThe name of the group this rate belongs to.
rateNameStringMThe name of this rate.
fromDateTimeDateTimeMThe start date and time of the period applicable for this cost item.
toDateTimeDateTimeMThe end date and time of the period applicable for this cost item.
quantityKeyStringMThe key for the quantity this calculated cost item refers to. Possible values include: fixed, consumption,minimum and demand.
quantityKeyDescriptionStringEThe textual description of the quantity key specified by quantityKey.
rateTypeStringMThe type of rate this charge is. Current values include COST_PER_UNIT which is a cost for each unit of quantity consumed (e.g. $0.10 per kWh), and PERCENTAGE which is a percent of another cost (e.g. 10% of your bill). BLOCK and BLOCK_SELL_BACK are also supported. See [Block and Index Rates][block_index]
rateAmountDecimalMThe monetary amount of the rate associated with this cost item.
tierLowerLimitDecimalEFor a tiered rate, the minimum quantity needed to invoke this tier.
tierUpperLimitDecimalEFor a tiered rate, the maximum quantity at which this tier is invoked.
itemQuantityDecimalMTotal quantity used for this item's charge. This will typically be 1 but will have different values for charges related to the number of units of some items (e.g. number of billing meters at a facility).
costDecimalMThis is the total cost for this line item.
rateProrationDecimalEThe amount this rate is being prorated compared to the full rate amount.
chargeTypeStringThe type of rate: CONSUMPTION_BASED, DEMAND_BASED, FIXED_TYPE, QUANTITY, MINIMUM, TAX or NET_EXCESS_GENERATION.
chargeClassStringThe class of rate: TRANSMISSION, DISTRIBUTION, SUPPLY, TAX, OTHER, CONTRACTED, USER_ADJUSTED or AFTER_TAX.
periodStringMThe [Time of Use][tou] type: OFF_PEAK, PARTIAL_PEAK, ON_PEAK or CRITICAL_PEAK.
demandIntervalDateTimeMFor demand charges, the time from which demand is measured.
durationIntegerThe duration in milliseconds (Optional)
touIdLongThe unique Arcadia ID of the time of use associated with this cost item. (Optional)
touNameStringHuman-readable name of the time of use specified by touId. (Optional)
seasonIdLongThe unique Arcadia ID of the season in which the time of use period is situated which can affect the rate. (Optional)
seasonNameStringHuman-readable name for the season in which the time of use period is situated. (Optional)
formulaStringEThe formula associated with the quantityKey.
transactionTypeEnumerationETransaction type categories: BUY, SELL, NET, BUY_IMPORT or SELL_EXPORT
{  
  "tariffId": 3163175,  
  "tariffRateId": 17091206,  
  "tariffRateBandId": 10341335,  
  "rateSequenceNumber": 3,  
  "rateGroupName": "Transmission",  
  "rateName": "Reliability Service Charge",  
  "fromDateTime": "2013-12-01T00:00:00-08:00",  
  "toDateTime": "2014-01-01T00:00:00-08:00",  
  "quantityKey": "consumption",  
  "rateType": "COST_PER_UNIT",  
  "rateAmount": -0.00015,  
  "itemQuantity": 1000,  
  "cost": -0.15,  
  "chargeType": "CONSUMPTION_BASED"  
}  

Property Data

The PropertyData object is used both as an input object, as part of the propertyInputs list, and also as an output object when returned in the assumptions list. It has the following data structure:

NameTypeFieldsDescription
keyNameStringMThe key name of the property associated with this input. The most common one will be consumption (which is the kWh for the period), and second most common is demand (kW), but can also be applicability properties like cityLimits or hasElectricVehicle (Required)
displayNameStringMA display-friendly name for this property. (Output only)
descriptionStringEA text description of this property. (Output only)
fromDateTimeDateTimeMThe start of the period where this property is applicable. (Optional, Default=Start of calculation)
toDateTimeDateTimeMThe end of the period where this property is applicable. (Optional, Default=End of calculation)
dataTypeStringMThe type of this property. Possible values are: "STRING", "CHOICE", "BOOLEAN", "DATE", "DECIMAL", "INTEGER", and "FORMULA" (Output only)
dataFactorDecimalFor applicable properties (like electricity data) scale the inputs by the value provided (Optional, Input Only)
dataValueStringMThe value to use for this property. Can be input as the native type, but when populated will be returned as a string. (Required on input when not using dataSeries)
dataSeriesArray of DecimalUsed for properties that have many values, such as consumption time series data. (Required on input when not using dataValue)
durationIntegerUsed with dataSeries to specify the time span corresponding to each value in the dataSeries. (Required on input when using dataSeries)
unitStringMWhere applicable, this is the unit of the value. The most common are: "kWh" - for keys of consumption, "kW" - for keys of demand. (Optional)
accuracyDecimal [0,100]MEstimated accuracy of the property value. Properties that you set explicitly will have an accuracy value of 100. (Output only)

As an input, you will use PropertyData to set calculation assumptions via the propertyInputs parameter, including overriding any properties that have already been set on the Account. For example, you might have already indicated that a particular customer was enrolled in the "SmartRate" program by setting the isSmartRateCustomer property to true on their account. However, you want to see what they would pay if they weren't enrolled in the smart rate program. To do this you would pass in property the following via the propertyInputs :

"propertyInputs": [  
    {  
        "keyName": "isSmartRateCustomer",  
        "dataValue": false  
    },  
    ...  
]  

The property doesn't need to be set on the Account to set it via the calculators propertyInputs parameter. When passing in inputs, we require the keyName and dataValue (for one value) or dataSeries and duration (for multiple values). Typically, that's all that is required. However, where necessary, you can set some of the other fields too, such as fromDateTime and toDateTime. You do not need to pass in informational fields such as dataType or description as these are defined by the property's meta-data.

The APIs will populate these metadata fields when a PropertyData is returned as an output. The assumptions list of PropertyData returned will tell you what assumptions were made for a particular calculation and what information might be required for a future calculation. The API will usually return the dataValue or dataSeries of the value that was actually used if there is one. Here's an example:

"assumptions": [  
    {  
      "keyName": "isSmartRateCustomer",  
      "displayName": "Is SmartRate Customer",  
      "description": "The residential SmartRate program is a voluntary rate supplement to the customer's \r\notherwise applicable rate schedule (OAS).\r\nThe customer will be billed for all regular charges applicable under the customer's OAS.  \r\nAdditional charges (based on usage during SmartDay High-Price Periods) and \r\nSmartRate credits will be determined according to the rates specified in this schedule.  The customer must have a SmartMeter system to participate in the residential \r\nSmartRate program",  
      "fromDateTime": "2013-01-01T00:00:00-08:00",  
      "toDateTime": "2014-01-01T00:00:00-08:00",  
      "dataType": "BOOLEAN",  
      "dataValue": "true",  
      "accuracy": 100 // implies this property was either passed in explicitly or must be true contextually  
    },  
    ...  
]  
{% endhighlight %}  
{:.tip-box}  
Every valid `keyName` that you can use in a `PropertyData` is available via our [Property Key API][property-key-api]. This will tell you its meta-data, such as its title, description, data type and possible values.

Request ID

In the top-level response object a requestId field is returned from this request. The requestId value is generated randomly for each request.
The primary use case of the requestId is to submit it along with a support ticket when there is a question regarding a particular calculation result.

{  
  "status": "success",  
  "count": 1,  
  "type": "CalculatedCost",  
  "requestId": "b9418ae1-af32-473a-b86a-b308fdbd48d1",  
  "results": [...]  
}  

Run new Calculation

To run a new calculation, you will POST a payload containing the calculation criteria and inputs, and a CalculatedCost object will be returned. Note that these parameters are part of the request body, not the query string. See below for an example.

Resource URI

Account ID

POST /rest/v1/accounts/{accountId}/calculate/

Provider Account ID

POST /rest/v1/accounts/pid/{providerAccountId}/calculate/

Request Parameters

Along with the required [security parameters][security], the following parameters are available as part of the request:

NameTypeDescription
fromDateTimeDateTimeStarting date and time for this calculation. (Required)
toDateTimeDateTimeEnd date and time for this calculation. (Required)
detailLevelEnumerationToggles the level of detail for the calculation result. Explanation (Optional, Default=ALL)
groupByEnumerationThis controls how the calculation details are grouped. Explanation (Optional, Defaults to the natural grouping for the rates)
includeDefaultProfileBooleanUse the default profile on the account. (Optional, Default=true)
profileIdStringUse an explicit Profile for this calculation. (Optional)
dataFactorDecimalSpecify a constant scalar to be applied to all profiles used in this calculation. Can also be used in propertyInputs to modify a single profile when multiple are used. (Optional)
billingPeriodStringA true or false flag. If the dates of the calculation represent an actual billing cycle, then you should set this to true. This will give you precise values for items like fixed charges. When it's not set, or set to false, these charges will be prorated across the number of days in the calculation. (Optional, Default=false)
minimumsBooleanThis field enables enforcing minimum charges on this calculation. (Optional, Default=false)
applyUtilityTaxBooleanWhen true, the calculation attempts to apply a utility tax for the address associated with this account. (Optional, Default=false)
calcNetExcessGenerationBooleanThis field includes net metering totals in the summary section of the calculation. (Optional, Default=false)
excludeChargeClassComma Separated StringSpecifies a charge class to exclude from the calculation results. Available options are TRANSMISSION, DISTRIBUTION, SUPPLY, TAX, CONTRACTED, USER_ADJUSTED, AFTER_TAX, and OTHER.(Optional)
tariffEffectiveOnDateTimeThis field enables doing a calculation with a single, specified version of a given tariff. For example, if the user specifies that they want to use the 2016-01-01 version of PG&E's E-1 tariff, any calculation, whether it's for 2013, 2015, or 2016, would use the rate data from that version and only that version of the tariff.
autoBaselineBooleanThis field enables intelligent baselining feature, which allows you to move usage data to a different time period. (Optional, Default=false)
useIntelligentBaseliningBooleanThis field works in conjunction with autoBaseline (above) and determines how to interpolate and extrapolate usage data when that is set to true. Read [intelligent baselining][ib] for details.
customTimeOfUseIntervalsArray of [TimeOfUseInterval][tou_interval]Define your own time-of-use interval to be used in the calculation. (Optional)
masterTariffIdLongUnique Arcadia ID for the master tariff of this tariff. (Optional, Default is the most likely tariff for the account address)
propertyInputsArrayArray of PropertyData to use in the calculation. (Optional)
rateInputsArray of TariffRateThe rate input values are used to override existing rates on the tariff during the calculation. This enables modeling and/or setting customer-specific rates during a calculation. (Optional)

Examples

Example 1 - Calculate last month's bill

POST /rest/v1/accounts/62d07619-06fd-4a28-9376-62c86c7811d5/calculate/

Below is a sample POST request based on the above accountId.

{  
  "fromDateTime" : "2013-01-08",  
  "toDateTime" : "2014-01-12",  
  "billingPeriod": true,  
  "minimums" : true,  
  "detailLevel" : "RATE",  
  "groupBy" : "MONTH"  
}  

And here's the response:

{  
  "status": "success",  
  "count": 1,  
  "type": "CalculatedCost",  
  "requestId": "52da5704-a951-4104-ae27-bf0cce98334d",  
  "results": [  
    {  
      "masterTariffId": 522,  
      "tariffName": "Residential",  
      "totalCost": 59.19,  
      "fromDateTime": "2013-01-08T00:00:00-08:00",  
      "toDateTime": "2014-01-12T00:00:00-08:00",  
      "currency": "USD",  
      "summary": {  
        "ELECTRICITY": {  
          "kWh": 0,  
          "kW": 0  
        },  
        "subTotalCost": 54.55,  
        "taxCost": 4.64,  
        "totalCost": 59.19,  
        "adjustedTotalCost": 59.19,  
        "kWh": 0,  
        "kW": 0  
      },  
      "accuracy": 1,  
      "items": [  
        {  
          "tariffRateId": 17023273,  
          "tariffRateBandId": 10237697,  
          "rateSequenceNumber": 1,  
          "rateGroupName": "Generation",  
          "rateName": "Generation Charge",  
          "fromDateTime": "2013-01-08T00:00:00-08:00",  
          "toDateTime": "2014-01-12T00:00:00-08:00",  
          "quantityKey": "consumption",  
          "rateType": "COST_PER_UNIT",  
          "rateAmount": 0.07884,  
          "itemQuantity": 0,  
          "cost": 0,  
          "chargeClass": "SUPPLY"  
        },  
        {  
          "tariffRateId": 17109049,  
          "tariffRateBandId": 10375380,  
          "rateSequenceNumber": 999,  
          "rateGroupName": "Minimum Charge",  
          "rateName": "Minimum Charge",  
          "fromDateTime": "2013-01-08T00:00:00-08:00",  
          "toDateTime": "2014-01-12T00:00:00-08:00",  
          "quantityKey": "minimum",  
          "rateType": "COST_PER_UNIT",  
          "rateAmount": 0.14784,  
          "itemQuantity": 11,  
          "cost": 1.62624  
        },  
        {  
          "tariffRateId": 0,  
          "rateSequenceNumber": 10000,  
          "rateGroupName": "TAX",  
          "rateName": "Utility Tax",  
          "fromDateTime": "2013-01-08T00:00:00-08:00",  
          "toDateTime": "2014-01-12T00:00:00-08:00",  
          "quantityKey": "percentage",  
          "rateType": "PERCENTAGE",  
          "rateAmount": 0.085,  
          "itemQuantity": 709.18848,  
          "cost": 4.6370016  
        },  
      ...  
      ],  
      "assumptions": [  
        {  
          "keyName": "dailyMedicalAllowance",  
          "displayName": "Daily Medical Allowance ",  
          "description": "Residential customers on a medical allowance get additional quantities of energy at the lowest (baseline) price. The medical allowance is a daily value. ",  
          "dataType": "DECIMAL",  
          "fromDateTime": "2013-01-08T00:00:00-08:00",  
          "toDateTime": "2014-01-12T00:00:00-08:00",  
          "dataValue": "0",  
          "accuracy": 80  
        },  
        {  
          "keyName": "hasCAEnergySurchargeExemption",  
          "displayName": "Has Energy Surcharge Exemption",  
          "description": "Exemptions for CA Energy Surcharge apply to the following:\r\n1. Federal Agencies\r\n2. American National Red Cross facilities\r\n3. Energy consumed on Indian reservations\r\n4. Foreign consular employees\r\n5. Federal Credit Unions",  
          "dataType": "BOOLEAN",  
          "fromDateTime": "2013-01-08T00:00:00-08:00",  
          "toDateTime": "2014-01-12T00:00:00-08:00",  
          "dataValue": "false",  
          "accuracy": 80  
        },  
        {  
          "keyName": "smartMeterOptOut",  
          "displayName": "Has Smart Meter Opt-Out",  
          "description": "Customers  who elect to opt-out of receiving a smart meter and choose to retain a non-smart meter, are subject to the Smart Meter Opt-Out fees.\r\n\r\nSmart Meter Opt-Out Customers are subject to one-time, up-front fee and a recurring monthly fee ",  
          "dataType": "BOOLEAN",  
          "fromDateTime": "2013-01-08T00:00:00-08:00",  
          "toDateTime": "2014-01-12T00:00:00-08:00",  
          "dataValue": "false",  
          "accuracy": 80  
        },  
        {  
          "keyName": "isSmartRateCustomer",  
          "displayName": "Is SmartRate Customer",  
          "description": "The residential SmartRate program is a voluntary rate supplement to the customer's \r\notherwise applicable rate schedule (OAS).\r\nThe customer will be billed for all regular charges applicable under the customer's OAS.  \r\nAdditional charges (based on usage during SmartDay High-Price Periods) and \r\nSmartRate credits will be determined according to the rates specified in this schedule.  The customer must have a SmartMeter system to participate in the residential \r\nSmartRate program",  
          "dataType": "BOOLEAN",  
          "fromDateTime": "2013-01-08T00:00:00-08:00",  
          "toDateTime": "2014-01-12T00:00:00-08:00",  
          "dataValue": "false",  
          "accuracy": 80  
        },  
        {  
          "keyName": "utilityEmployee",  
          "displayName": "Is Utility Employee",  
          "description": "Applicable to domestic service utility employees ",  
          "dataType": "BOOLEAN",  
          "fromDateTime": "2013-01-08T00:00:00-08:00",  
          "toDateTime": "2014-01-12T00:00:00-08:00",  
          "dataValue": "false",  
          "accuracy": 80  
        },  
        {  
          "keyName": "powerChargeIndifferenceAdjustmentVintageYear",  
          "displayName": "Power Charge Indifference Adjustment  Vintage Year ",  
          "description": "The adjustment (either a \r\ncharge or credit) is intended to ensure that customers that purchase electricity from \r\nnon-utility suppliers pay their share of cost for generation acquired prior to 2003",  
          "dataType": "STRING",  
          "fromDateTime": "2013-01-08T00:00:00-08:00",  
          "toDateTime": "2014-01-12T00:00:00-08:00",  
          "dataValue": "None",  
          "accuracy": 80  
        },  
        {  
          "keyName": "tariffId",  
          "dataType": "INTEGER",  
          "fromDateTime": "2013-01-08T00:00:00-08:00",  
          "toDateTime": "2013-05-01T00:00:00-07:00",  
          "dataValue": "3155887",  
          "accuracy": 100  
        },  
        {  
          "keyName": "tariffId",  
          "dataType": "INTEGER",  
          "fromDateTime": "2013-05-01T00:00:00-07:00",  
          "toDateTime": "2013-10-01T00:00:00-07:00",  
          "dataValue": "3160193",  
          "accuracy": 100  
        },  
        {  
          "keyName": "tariffId",  
          "dataType": "INTEGER",  
          "fromDateTime": "2013-10-01T00:00:00-07:00",  
          "toDateTime": "2014-01-01T00:00:00-08:00",  
          "dataValue": "3163175",  
          "accuracy": 100  
        },  
        {  
          "keyName": "tariffId",  
          "dataType": "INTEGER",  
          "fromDateTime": "2014-01-01T00:00:00-08:00",  
          "toDateTime": "2014-01-12T00:00:00-08:00",  
          "dataValue": "3164509",  
          "accuracy": 100  
        },  
        {  
          "keyName": "minimum",  
          "dataType": "STRING",  
          "fromDateTime": "2013-01-08T00:00:00-08:00",  
          "toDateTime": "2014-01-12T00:00:00-08:00",  
          "dataValue": "true",  
          "accuracy": 100  
        },  
        {  
          "keyName": "profileId",  
          "displayName": "2014 CA Electricity Residential TOU Profile",  
          "description": "ELECTRICITY_RESIDENTIAL_CA_2014_TOU",  
          "dataType": "STRING",  
          "dataValue": "5539691a368c25bd8b993673",  
          "accuracy": 100  
        },  
        {  
          "keyName": "territoryId",  
          "displayName": "Territory",  
          "description": "Territory where tariff is operational",  
          "dataType": "INTEGER",  
          "fromDateTime": "2013-01-08T00:00:00-08:00",  
          "toDateTime": "2014-01-12T00:00:00-08:00",  
          "dataValue": "3538",  
          "accuracy": 100  
        }  
      ]  
    }  
  ]  
}  

To get different result aggregations, modify the groupBy and detailLevel values. For example, using "groupBy":"HOUR" and "detailLevel":"CHARGE_TYPE" for the calculation above will return costs and usage broken down by charge type for each hour:

"items": [  
    {  
      "fromDateTime": "2013-01-08T00:00:00-08:00",  
      "toDateTime": "2013-01-08T01:00:00-08:00",  
      "quantityKey": "minimum",  
      "rateAmount": 0.00616,  
      "itemQuantity": 1,  
      "cost": 0.00616  
    },  
    {  
      "fromDateTime": "2013-01-08T00:00:00-08:00",  
      "toDateTime": "2013-01-08T01:00:00-08:00",  
      "quantityKey": "tax",  
      "rateAmount": 0.0000096,  
      "itemQuantity": 54.55296,  
      "cost": 0.0005236  
    },  
    ...  
]  

Example 2 - Calculate with a Provider Account ID

To identify an account based on the ID value you provided when you created the account, use the following request url format:

POST /rest/v1/accounts/pid/{yourProviderAccountId}/calculate/