Fraunhofer ISE Energy-Charts API

Use in your agent

Load Energy-Charts German power into pandas and Parquet. Checked against the provider's documentation on Nov 1, 2026.

Access

• No account or key for the public endpoints.
• This example uses the v2 public-power endpoint, whose response states CC BY 4.0.

Request

curl 'https://api.energy-charts.info/v2/public_power?country=de&start=2026-10-31&end=2026-10-31'

Format

Version 2 JSON envelope with local ISO 8601 interval timestamps, timezone, resolution, MW unit, stable series IDs and row-oriented values.

Load into pandas and Parquet

Needs Python 3 with requests, pandas and pyarrow.

"""German public electricity production for one day -> pandas -> Parquet."""
import requests
import pandas as pd

URL = "https://api.energy-charts.info/v2/public_power"
response = requests.get(
    URL,
    params={"country": "de", "start": "2026-10-31", "end": "2026-10-31"},
    timeout=60,
)
response.raise_for_status()
payload = response.json()
df = pd.DataFrame([
    {"timestamp": row["timestamp"], **row["values"]}
    for row in payload["data"]
])
df["timestamp"] = pd.to_datetime(df["timestamp"], utc=True)
df.to_parquet("energy_charts_germany_public_power.parquet", index=False)
print(len(df), "intervals", df["timestamp"].min().isoformat(), "to",
      df["timestamp"].max().isoformat(), len(payload["series"]), "series", payload["unit"])

Run by us on 2026-11-01 (python 3.13.5 | pandas 3.1.0 | pyarrow 26.0.0 | requests 2.34.2). Result: 96 intervals 2026-10-30T23:00:00+00:00 to 2026-10-31T22:45:00+00:00 21 series MW

Limits

• Default rate limit: 2 requests per minute per client IP and endpoint, burst 4.
• The effective rate can be lower during peak server load; HTTP 429 includes Retry-After.
• History, resolution and series coverage vary by endpoint and country.

Quirks

• Response timestamps use the selected country's local timezone and mark the beginning of each interval; conversion to UTC shifts the displayed calendar boundary.
• Installed-power timestamps are an exception: they label a reporting month or year and represent the end of that period.
• Inspect the response licence before using price data because several zones are restricted to private and internal use.

Terms and attribution

• The public-power response states CC BY 4.0 and attribution to Energy-Charts.info.
• The API documentation says the default CC BY 4.0 licence does not cover endpoints that state different terms.

Sources

• https://api.energy-charts.info/openapi.json: “Public net electricity production in megawatt (MW) for a given country, one series per production type.”
• https://api.energy-charts.info/openapi.json: “The default is 2 requests per minute with a burst of 4”
• https://api.energy-charts.info/openapi.json: “Proper attribution to Energy-Charts.info as the source is required.”
• https://api.energy-charts.info/v2/public_power?country=de&start=2026-10-31&end=2026-10-31: “CC BY 4.0 (creativecommons.org/licenses/by/4.0), attribution: energy-charts.info”