ISO New England · Example Payload

Iso New England Sevendayforecast_Current

EnergyUnited StatesElectricityEnergy MarketsGridOpen DataWholesale MarketsDemand ResponseRenewablesNew England

Iso New England Sevendayforecast_Current is an example object payload from ISO New England, with 1 top-level field. It illustrates the shape of data this provider's APIs accept or return.

Top-level fields

SevenDayForecasts

Example Payload

{
 "SevenDayForecasts": {
  "SevenDayForecast": [
   {
    "CreationDate": "2026-07-27T09:14:58.000-04:00",
    "MarketDay": [
     {
      "OtherGenOutagesMw": 1786,
      "DelistMw": 971,
      "MarketDate": "2026-07-28T00:00:00.000-04:00",
      "TotAvailGenImportMw": 29332,
      "ColdWeatherWarn": "N",
      "PowerWatch": "N",
      "CsoMw": 26707,
      "ColdWeatherWatch": "N",
      "Weather": {
       "CityWeather": [
        {
         "HighTempF": 78,
         "DewPointF": 66,
         "CityName": "Boston"
        },
        {
         "HighTempF": 77,
         "DewPointF": 69,
         "CityName": "Hartford"
        }
       ]
      },
      "ColdWeatherEvent": "N",
      "ReplReserveReqMw": 160,
      "PeakImportMw": 3440,
      "PeakLoadMw": 17630,
      "ReqdReserveMw": 2048,
      "ReqdReserveInclReplMw": 2208,
      "PowerWarn": "N",
      "TotLoadPlusReqdReserveMw": 19838,
      "SurplusDeficiencyMw": 9494,
      "DrrMw": 245,
      "Day": 2,
      "TotAvailGenMw": 25892,
      "ColdWeatherOutagesMw": 0
     },
     {
      "OtherGenOutagesMw": 2232,
      "DelistMw": 971,
      "MarketDate": "2026-07-29T00:00:00.000-04:00",
      "TotAvailGenImportMw": 28886,
      "ColdWeatherWarn": "N",
      "PowerWatch": "N",
      "CsoMw": 26707,
      "ColdWeatherWatch": "N",
      "Weather": {
       "CityWeather": [
        {
         "HighTempF": 69,
         "DewPointF": 65,
         "CityName": "Boston"
        },
        {
         "HighTempF": 73,
         "DewPointF": 68,
         "CityName": "Hartford"
        }
       ]
      },
      "ColdWeatherEvent": "N",
      "ReplReserveReqMw": 160,
      "PeakImportMw": 3440,
      "PeakLoadMw": 16390,
      "ReqdReserveMw": 2048,
      "ReqdReserveInclReplMw": 2208,
      "PowerWarn": "N",
      "TotLoadPlusReqdReserveMw": 18598,
      "SurplusDeficiencyMw": 10288,
      "DrrMw": 245,
      "Day": 3,
      "TotAvailGenMw": 25446,
      "ColdWeatherOutagesMw": 0
     },
     {
      "OtherGenOutagesMw": 2397,
      "DelistMw": 971,
      "MarketDate": "2026-07-30T00:00:00.000-04:00",
      "TotAvailGenImportMw": 28721,
      "ColdWeatherWarn": "-",
      "PowerWatch": "N",
      "CsoMw": 26707,
      "ColdWeatherWatch": "-",
      "Weather": {
       "CityWeather": [
        {
         "HighTempF": 69,
         "DewPointF": 65,
         "CityName": "Boston"
        },
        {
         "HighTempF": 74,
         "DewPointF": 64,
         "CityName": "Hartford"
        }
       ]
      },
      "ColdWeatherEvent": "-",
      "ReplReserveReqMw": 160,
      "PeakImportMw": 3440,
      "PeakLoadMw": 16160,
      "ReqdReserveMw": 2048,
      "ReqdReserveInclReplMw": 2208,
      "PowerWarn": "N",
      "TotLoadPlusReqdReserveMw": 18368,
      "SurplusDeficiencyMw": 10353,
      "DrrMw": 245,
      "Day": 4,
      "TotAvailGenMw": 25281,
      "ColdWeatherOutagesMw": 0
     },
     {
      "OtherGenOutagesMw": 2506,
      "DelistMw": 971,
      "MarketDate": "2026-07-31T00:00:00.000-04:00",
      "TotAvailGenImportMw": 28942,
      "ColdWeatherWarn": "-",
      "PowerWatch": "N",
      "CsoMw": 26707,
      "ColdWeatherWatch": "-",
      "Weather": {
       "CityWeather": [
        {
         "HighTempF": 74,
         "DewPointF": 63,
         "CityName": "Boston"
        },
        {
         "HighTempF": 80,
         "DewPointF": 64,
         "CityName": "Hartford"
        }
       ]
      },
      "ColdWeatherEvent": "-",
      "ReplReserveReqMw": 160,
      "PeakImportMw": 3770,
      "PeakLoadMw": 16920,
      "ReqdReserveMw": 2048,
      "ReqdReserveInclReplMw": 2208,
      "PowerWarn": "N",
      "TotLoadPlusReqdReserveMw": 19128,
      "SurplusDeficiencyMw": 9814,
      "DrrMw": 245,
      "Day": 5,
      "TotAvailGenMw": 25172,
      "ColdWeatherOutagesMw": 0
     },
     {
      "OtherGenOutagesMw": 2560,
      "DelistMw": 971,
      "MarketDate": "2026-08-01T00:00:00.000-04:00",
      "TotAvailGenImportMw": 29135,
      "ColdWeatherWarn": "-",
      "PowerWatch": "N",
      "CsoMw": 26754,
      "ColdWeatherWatch": "-",
      "Weather": {
       "CityWeather": [
        {
         "HighTempF": 78,
         "DewPointF": 64,
         "CityName": "Boston"
        },
        {
         "HighTempF": 83,
         "DewPointF": 65,
         "CityName": "Hartford"
        }
       ]
      },
      "ColdWeatherEvent": "-",
      "ReplReserveReqMw": 160,
      "PeakImportMw": 3970,
      "PeakLoadMw": 17330,
      "ReqdReserveMw": 2048,
      "ReqdReserveInclReplMw": 2208,
      "PowerWarn": "N",
      "TotLoadPlusReqdReserveMw": 19538,
      "SurplusDeficiencyMw": 9597,
      "DrrMw": 245,
      "Day": 6,
      "TotAvailGenMw": 25165,
      "ColdWeatherOutagesMw": 0
     },
     {
      "OtherGenOutagesMw": 2710,
      "DelistMw": 971,
      "MarketDate": "2026-08-02T00:00:00.000-04:00",
      "TotAvailGenImportMw": 28985,
      "ColdWeatherWarn": "-",
      "PowerWatch": "N",
      "CsoMw": 26754,
      "ColdWeatherWatch": "-",
      "Weather": {
       "CityWeather": [
        {
         "HighTempF": 81,
         "DewPointF": 66,
         "CityName": "Boston"
        },
        {
         "HighTempF": 82,
         "DewPointF": 67,
         "CityName": "Hartford"
        }
       ]
      },
      "ColdWeatherEvent": "-",
      "ReplReserveReqMw": 160,
      "PeakImportMw": 3970,
      "PeakLoadMw": 18090,
      "ReqdReserveMw": 2048,
      "ReqdReserveInclReplMw": 2208,
      "PowerWarn": "N",
      "TotLoadPlusReqdReserveMw": 20298,
      "SurplusDeficiencyMw": 8687,
      "DrrMw": 245,
      "Day": 7,
      "TotAvailGenMw": 25015,
      "ColdWeatherOutagesMw": 0
     }
    ],
    "BeginDate": "2026-07-28T00:00:00.000-04:00"
   }
  ]
 }
}

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