A developer-first data platform for weather and energy. Orrery turns open numerical-weather and power-grid data into a clean, usage-priced HTTP API for the people who feel forecast error in dollars.

Renewable operators and IPPs, aggregators and VPPs, battery and storage operators, and power and gas traders, plus the developers who build their forecasting, bidding, and risk tools.

What data does Orrery use?

Open numerical weather models (ECMWF IFS, NOAA HRRR, GFS, GEFS, and NBM), Copernicus CAMS solar irradiance, and public grid data, normalized into one schema with source attribution carried through.

How is Orrery priced?

Usage-based and transparent. Published prices, metered per call, month to month. No quote-only enterprise contract and no long cancellation window.

How is it different from a generic weather API?

Orrery is a decision product for power markets, not a general-purpose feed. The difference is published accuracy you can verify, energy and grid data alongside the weather, typed SDKs, and pricing you can read off a page.

Is Orrery available yet?

The API foundation is live and the first open-source crate is published. The weather and energy endpoints are in active build. Join the early-access list to get the first keys.

Pre-launch

Weather and energy data, priced by the call.

Wind, solar, and grid data for renewable operators and power traders, delivered as a clean API with accuracy you can verify.

The data the expensive terminals were built on just went open.

The same raw inputs the legacy vendors charge for are now free to anyone. The moat was never the models. It was access, packaging, and distribution. Access just opened, so the game moves to modeling, provable accuracy, and developer experience. That is what Orrery competes on.

ECMWF IFS: The 9 km global model, opened for commercial use with attribution in late 2025.
NOAA models: HRRR, GFS, GEFS, and NBM are US public domain, sitting on cloud object storage.
Copernicus CAMS: Solar irradiance for siting and generation forecasting, free to build on.

Verifiable, integrable, and honestly priced.

The open data is the same for everyone. The product is the difference: how you verify it, how fast you ship with it, and what it costs.

One API, typed all the way down.

One coherent schema, an OpenAPI spec, units carried in the type system, and problem+json errors. Generated SDKs for TypeScript and Python. Built to integrate in an afternoon, not a quarter.

curl "https://api.orr.sh/v1/weather/forecast?lat=41.88&lon=-87.63\
  &vars=wind_speed_100m,ghi,temperature_2m" \
  -H "Authorization: Bearer $ORRERY_KEY"

{
  "issued_at": "2026-06-29T00:00:00Z",
  "points": [
    { "valid_at": "2026-06-29T01:00:00Z",
      "wind_speed_100m": 8.6, "ghi": 0, "temperature_2m": 21.4 }
  ],
  "units": { "wind_speed_100m": "m/s", "ghi": "W/m2", "temperature_2m": "degC" },
  "attribution": "ECMWF"
}

Example request and response. Units travel with every value, so a number never lies.

Accuracy you can check.

We publish skill scores against observations, per model and per variable. You read the numbers instead of trusting a brochure.

Skill vs observations, by lead timeSample

Priced like software.

Published prices, metered per call, month to month. No quote-only contract, no 90-day cancellation window, no surprise mid-term hike.

Weather and grid, one platform.

Renewable generation is a weather problem. Serve the forecast and the grid data, load and generation, in one schema, and drop a second vendor.

weather + grid

one schema

Built for the desks that price megawatts.

Operators and traders

Renewable operators and IPPs
Generation forecasting for wind and solar fleets.
Aggregators and VPPs
Portfolio forecasts across distributed assets.
Battery and storage operators
Price and net-load signals for dispatch.
Power and gas traders
Temperature-driven demand and renewable supply.

Developers

The engineers who build the forecasting, bidding, and risk tools behind those desks.

A typed SDK, an OpenAPI spec, honest errors, and a changelog you can trust. Integrate it and move on.

What is real today.

This is a pre-launch, and we will not pretend otherwise. Here is what already runs and what is next.

Live now

A live API
api.orr.sh is up: a typed HTTP service on AWS, with problem+json errors and real responses.
Open source, shipping
Our first crate, standard-atmosphere, is published to crates.io under a permissive license.
Built on open data
ECMWF, NOAA, and Copernicus, with attribution carried through the pipeline.

curl https://api.orr.sh/v1/atmosphere?altitude_m=9000

Live right now. Run it.

On the way

Weather endpoints
Wind and solar generation forecasting, plus temperature-driven demand.
Published accuracy
Skill scores against observations, per model and per location.
Typed SDKs
TypeScript and Python, generated from the OpenAPI spec.

Questions, answered plainly.

Get in before launch.

Join the early-access list. The first keys, the accuracy pages, and the changelog go to the people on it first.