Iso New England Genfuelmix_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.
{
"GenFuelMixes": {
"GenFuelMix": [
{
"MarginalFlag": "N",
"GenMw": 228,
"FuelCategoryRollup": "Batteries",
"FuelCategory": "Batteries",
"BeginDate": "2026-07-27T17:23:19.000-04:00"
},
{
"MarginalFlag": "Y",
"GenMw": 1841,
"FuelCategoryRollup": "Hydro",
"FuelCategory": "Hydro",
"BeginDate": "2026-07-27T17:23:19.000-04:00"
},
{
"MarginalFlag": "Y",
"GenMw": 10061,
"FuelCategoryRollup": "Natural Gas",
"FuelCategory": "Natural Gas",
"BeginDate": "2026-07-27T17:23:19.000-04:00"
},
{
"MarginalFlag": "N",
"GenMw": 3336,
"FuelCategoryRollup": "Nuclear",
"FuelCategory": "Nuclear",
"BeginDate": "2026-07-27T17:23:19.000-04:00"
},
{
"MarginalFlag": "N",
"GenMw": 10,
"FuelCategoryRollup": "Other",
"FuelCategory": "Other",
"BeginDate": "2026-07-27T17:23:19.000-04:00"
},
{
"MarginalFlag": "N",
"GenMw": 23,
"FuelCategoryRollup": "Renewables",
"FuelCategory": "Landfill Gas",
"BeginDate": "2026-07-27T17:23:19.000-04:00"
},
{
"MarginalFlag": "N",
"GenMw": 306,
"FuelCategoryRollup": "Renewables",
"FuelCategory": "Refuse",
"BeginDate": "2026-07-27T17:23:19.000-04:00"
},
{
"MarginalFlag": "N",
"GenMw": 473,
"FuelCategoryRollup": "Renewables",
"FuelCategory": "Solar",
"BeginDate": "2026-07-27T17:23:19.000-04:00"
},
{
"MarginalFlag": "N",
"GenMw": 91,
"FuelCategoryRollup": "Renewables",
"FuelCategory": "Wind",
"BeginDate": "2026-07-27T17:23:19.000-04:00"
},
{
"MarginalFlag": "N",
"GenMw": 281,
"FuelCategoryRollup": "Renewables",
"FuelCategory": "Wood",
"BeginDate": "2026-07-27T17:23:19.000-04:00"
}
]
}
}