Releases / Brazil
Brazil stored hydro energy (EAR) by subsystem, daily (ONS open data) release schedule and API
ONS (Operador Nacional do Sistema Elétrico, Brazil). Fonte: ONS (Operador Nacional do Sistema Elétrico), dados abertos, Energia Armazenada (EAR) diária por subsistema. SIN totals and percentages computed by Econfeed from the four subsystems.. Licence: CC-BY.
Next releases
| Release | UTC | Agency local time |
|---|---|---|
| Stored energy by subsystem | 12:00 local (UTC-03:00) | |
| Stored energy by subsystem | 12:00 local (UTC-03:00) | |
| Stored energy by subsystem | 12:00 local (UTC-03:00) | |
| Stored energy by subsystem | 12:00 local (UTC-03:00) | |
| Stored energy by subsystem | 12:00 local (UTC-03:00) | |
| Stored energy by subsystem | 12:00 local (UTC-03:00) |
From the agency's own calendar, as of 2026-11-13. Reschedules and cancellations are in the API.
How fast it reaches the API
| Release | Measured | Median | Fastest | Slowest | Missed |
|---|---|---|---|---|---|
| ear | 11 | 4.6 s | 3.4 s | 79 s | 1 |
Time from the agency publishing to the data being on our feed, for releases caught live in the last 30 days. Every release counts, including slow ones and misses.
Get it by API
Series ids: BR.HYDRO_STORAGE.SE_PCT.NSA.
# pip install econfeed-client
from econfeed_client import Client
ef = Client() # ECONFEED_API_KEY from the environment
for e in ef.calendar(days=90, source="br_ons_ear"):
print(e.scheduled_at, e.release_name, e.reference_period)
# add as_of= for what was known then
page = ef.observations("BR.HYDRO_STORAGE.SE_PCT.NSA", start="2024-01")
# pushed seconds after release
for ev in ef.stream(sources=["br_ons_ear"]):
print(ev.type, ev.data.release_id)REST: GET /v1/calendar?source=br_ons_ear, GET /v1/series/BR.HYDRO_STORAGE.SE_PCT.NSA/observations. Webhooks: filter on source br_ons_ear.