Renewcast AI Wind & Solar Forecasting

Renewcast is an Italian start-up founded in 2020 and based in Rome. It provides short-term and intra-day wind and solar power forecasts to energy operators, with the aim of lowering imbalance costs.

The service runs on a cloud platform on Azure with proprietary deep learning models, a data pipeline and a digital twin of each turbine. Forecasts update hourly, cover horizons from intra-day to 15 days, and are delivered through a client interface for reports and data download, plus an API. Clients are utilities, grid operators and asset managers.

• Forecasting as a Service: wind and solar output forecasts from intra-day up to 15 days.
• Digital twin: a model of each turbine and asset conditions.
• Hourly updates: forecasts refresh every hour.
• Client interface: parametric reports and data download.
• API access: integration with operator systems.
• Performance-linked pricing: gain-share model of up to 3-4 EUR per MWh dispatched.

Day-ahead generation schedules for solar farm owners in Vietnam. Portfolio forecasting for asset managers and traders in the competitive power market. Support for grid operators planning reserve and dispatch.

Forecast error is stated as low as 7% nMAE. The company claims imbalance cost reductions of up to 30%. Pricing is performance-linked, with clients paying up to 20% of the measured benefit. API access allows integration with trading and dispatch systems.

Growing shares of solar and wind make accurate short-term forecasts valuable for grid balancing and electricity market participation. Vietnam and Southeast Asia are expanding utility-scale and rooftop solar, which raises demand for forecasting at plant and portfolio level.

Registered as an Innovative Start-up in Italy. Raised 1 million EUR via SAFE led by 2C Ventures Fund I in September 2025, extending a 2024 SAFE round. Reports four commercial clients and over 10 pilots, and plans Series A in late 2026.