# Meteonorm

> Meteonorm provides global solar irradiance, weather, and climate data — typical meteorological years (TMY), actual meteorological years (AMY), climate change scenarios, real-time observations, forecasts, and horizon/topography data — for solar energy planning, PV monitoring, energy trading, and building simulation.
>
> Meteonorm has been a trusted industry standard for solar and meteorological data since 1985, used by architects, engineers, energy traders, financial institutions, and scientists worldwide. Data is available through a REST API, a C library (DLL), and a browser-based web application, and is exportable in industry-standard formats (CSV, JSON, EPW, PVSyst, TMY3, WAC, IDA ICE, PVsol, Polysun, TRJ, SIA, PHPP10).
>
> Meteonorm is a branded product-line of [Meteotest AG, Bern, Switzerland](https://meteotest.ch/).

## Products

- [Home](https://meteonorm.com/): Overview of the Meteonorm product line-up and data services.
- [Climate](https://meteonorm.com/climate/): Typical Meteorological Year (TMY) and actual meteorological year (AMY) data, plus future climate change scenarios (SSP1-2.6, SSP2-4.5, SSP3-7.0), based on 10,000+ weather stations, 5 satellites, and reanalysis data. For PV planning and building simulation. Available via REST API, C library, and web app. Successor to Meteonorm 8.
- [Web Application](https://meteonorm.com/app/): Browser-based application for calculating and visualizing TMY/AMY and climate scenario data with a project-based workflow. Powered by the Climate API, exports to all major solar/building simulation formats.
- [Observation](https://meteonorm.com/observation/): High-resolution real-time and historical solar irradiance data based on satellite observations (hourly, 15-minute, 1-minute resolution), for PV monitoring and performance analysis. Available via API.
- [Forecast](https://meteonorm.com/forecast/): Short- and medium-term solar irradiance forecasts, combining satellite-based nowcasting with numerical weather prediction, for automated energy management and power trading. Available via API.
- [Horizon](https://meteonorm.com/horizon/): Global horizon-line and altitude/topography data (360° horizon at 1° resolution, elevation at 30m resolution) for shading analysis and geospatial modeling. Available via API (/horizon and /altitude endpoints).

## Documentation

- [API Documentation & Live Demos](https://docs.meteonorm.com): Interactive documentation and live demos for all Meteonorm APIs, no account required to try.
- [Climate API Reference](https://docs.meteonorm.com/api/climate)
- [Observation API Reference](https://docs.meteonorm.com/api/observation)
- [Forecast API Reference](https://docs.meteonorm.com/api/forecast)
- [Horizon API Reference](https://docs.meteonorm.com/api/horizon)
- [API Authentication](https://docs.meteonorm.com/overview/auth): Explains API authentication and how purchased subscriptions, bundles, and API keys are managed through the Meteotest customer portal.
- [Web Application Purchase & Sign-up](https://docs.meteonorm.com/app/sign-up): Instructions for purchasing a Meteonorm Web Application plan, creating users, and accessing the application.

## Shop & Customer Portal

> The official Meteonorm online shop and customer portal are operated by Meteotest AG on go.meteotest.ch. Product information and technical documentation are provided on meteonorm.com and docs.meteonorm.com; paid plans, subscriptions, bundles, and related Meteonorm products are purchased and managed through the Meteotest portal.

- [Official Meteonorm Shop](https://go.meteotest.ch/shop/): Official online shop for Meteonorm products, plans, subscriptions, bundles, and related services.
- [Meteonorm Web Application Plans](https://go.meteotest.ch/shop/category/meteonorm-application-8): Purchase plans for the Meteonorm Web Application.
- [Customer Portal](https://go.meteotest.ch/my/): Manage purchased Meteonorm products, subscriptions, configurations, users, and API keys.
- [Meteonorm Web Application](https://app.meteonorm.com/): Access the browser-based Meteonorm application after a plan has been purchased and assigned to a user.

## Ordering & Support

- [Official Meteonorm Shop](https://go.meteotest.ch/shop/): Purchase Meteonorm plans, subscriptions, bundles, and related products.
- [Order a Dataset](https://meteonorm.com/dataset/): Order a one-off TMY or AMY dataset for a specific location without a paid plan.
- [Support](https://meteonorm.com/support/): Technical support contact form (web app, API, C library).
- [Contact](https://meteonorm.com/contact/): Contact form for custom offers, sales inquiries, and feedback.

## Optional

- [Legal Notice](https://meteonorm.com/legal-notice/)
- [Privacy Policy](https://meteonorm.com/privacy/)
- [Terms & Conditions](https://meteonorm.com/terms/)