Energy
Monthly energy aggregates and lifetime statistics in Joulo
The energy endpoint provides a high-level view of your charging activity • monthly breakdowns and lifetime totals across all your chargers.
Energy statistics object
{
"total_kwh": 2847.52,
"total_ere_credits": 947.21,
"total_sessions": 186,
"months": [
{
"month": "2026-04",
"kwh": 124.30,
"ere_credits": 41.36,
"sessions": 8
},
{
"month": "2026-03",
"kwh": 387.45,
"ere_credits": 128.88,
"sessions": 22
}
]
}Top-level fields
| Field | Type | Description |
|---|---|---|
total_kwh | number | Lifetime total energy charged across all chargers, in kWh. |
total_ere_credits | number | Lifetime total Emissiereductie-eenheden (ERE count), derived from kwh via the NEa formula. Multiply by ere_price_mid from GET /me and (1 − effective_fee_pct/100) to get net euros. |
total_sessions | number | Lifetime total number of charging sessions. |
months | array | Monthly breakdown, sorted newest first. |
Monthly fields
| Field | Type | Description |
|---|---|---|
month | string | Month in YYYY-MM format. |
kwh | number | Total energy charged in this month, in kWh. |
ere_credits | number | Total ERE count for the month: kwh × 0.505 × 0.6588 (NL renewable fraction × RED III reduction factor). |
sessions | number | Number of charging sessions completed in this month. |