# Sunairio

> Sunairio is a Baltimore-based climate-and-energy analytics company that builds next-generation grid forecasting software where weather, climate, and energy meet. Its flagship platform, Sunairio ONE, generates 1,000 ensemble forecast paths - versus the 50 typical of legacy methods - to capture the extreme, hyperlocal weather events that break grids and portfolios. Spanning timescales from the next 15 days to the next 15 years, Sunairio helps utilities, renewable developers, traders, and investors plan for volatility instead of being surprised by it.

- **Founded:** 2020
- **Headquarters:** Baltimore, Maryland, United States
- **Founders:** Rob Cirincione (Co-Founder & CEO), Mitchell Walk (Co-Founder & Head of Business Development)
- **Team size:** ~19 employees
- **Products:** Sunairio ONE, SHED (Sunairio High-resolution Earth Data), Asset-level renewables modeling, Load & grid-stress forecasting
- **Notable:** Built Sunairio ONE, an award-winning platform generating 1,000-member hourly ensembles vs. the industry-standard ~50., Captures 97% of hourly weather extremes that traditional forecasts miss., Won a National Science Foundation SBIR grant in 2024 for climate-simulation technology.

## Products & services

- **Sunairio ONE** — Award-winning ensemble grid-forecasting platform that generates 1,000 forecast paths per run, capturing 97% of hourly extremes that traditional 50-member methods miss, across load, renewables, and grid stress from the next 15 days to the next 15 years.
- **SHED (Sunairio High-resolution Earth Data)** — A proprietary historical weather dataset covering the Continental US from 1950 to present, at roughly 100x the resolution of standard reanalysis datasets like ECMWF's ERA5.
- **Asset-level renewables modeling** — Site-specific wind and solar generation simulations using advanced statistics and generative AI to model output at individual project locations.
- **Load & grid-stress forecasting** — Probabilistic load forecasts and grid-stress analysis for utilities and power markets, integrating weather variability and long-term climate trends.

## Achievements

- Built Sunairio ONE, an award-winning platform generating 1,000-member hourly ensembles vs. the industry-standard ~50.
- Captures 97% of hourly weather extremes that traditional forecasts miss.
- Won a National Science Foundation SBIR grant in 2024 for climate-simulation technology.
- Raised $8.24M+ total, including an oversubscribed $6.4M round in December 2024.
- Developed the SHED dataset - US weather from 1950 to present at ~100x standard resolution.
- Secured strategic investment and commercial adoption from Constellation, one of the largest US power producers.

## Latest updates

- **2024-12** — Closed an oversubscribed $6.4M financing round led by Buoyant Ventures, with Constellation Technology Ventures, MassMutual Ventures' Climate Tech Fund, and Rosecliff Ventures.
- **2024-02** — Won a National Science Foundation SBIR grant for new climate-simulation technology.
- **2026-05** — Published product materials highlighting Sunairio ONE's next-gen grid forecast model spanning past, present, and future timescales.

## Links

- Website: https://sunairio.com
- LinkedIn: https://www.linkedin.com/company/sunairio
- Twitter/X: https://twitter.com/sunairio

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Profile page: https://yespress.io/sunairio
Published by YesPress — https://yespress.io
Last updated: 2026-07-02