Sunairio
Sunairio builds an AI-driven weather and grid forecasting platform (Sunairio ONE) that generates probabilistic, high-resolution ensemble forecasts and asset-level energy predictions for energy traders, grid operators, and renewable asset developers across the Continental US.
- Company typePrivate
- Founded2020
- HeadquartersBaltimore, United States
- Headcount1–10
- GTM typeB2B
- OfferingSoftware
What Sunairio does
Sunairio is a Baltimore-based climate and energy analytics company founded in 2020 that builds a probabilistic weather and grid forecasting platform for the renewable-energy sector. Its core product, Sunairio ONE, is an ensemble-based forecasting engine that generates 1,000 hourly forecast paths across horizons from 15 days to 15 years at roughly 2km spatial resolution, targeting the operational and planning needs of energy traders, grid operators (ISOs/RTOs, utilities, LSEs), and utility-scale renewable asset developers/IPPs. Underlying the platform are two proprietary foundations: the SHED (Sunairio High-resolution Earth Data), a 1950-present Continental US historical weather dataset created at 100x the resolution of ECMWF's ERA5 and validated against NREL benchmarks; and Digital Twins — physics-based CFD and PVlib models covering over 1,400 wind farms and 7,500 solar farms — that translate weather into asset-level generation potential.
The platform is monetized through three annual quote-based SaaS tiers (Current, Horizon, Continuum) that progressively extend forecast range and add Snowflake data-sharing and API access; distribution combines direct enterprise sales with self-service platform access and an API-first product surface, complemented by the Grid Stress Index as a grid-reliability analytics add-on. Sunairio's go-to-market targets enterprise buyers across energy trading, grid operations, asset development, VPP/DR aggregation, and energy-sector investment management, and its disclosed customer roster includes Constellation, Engelhart, EPRI, Excelsior Energy Capital, Greenfront Energy Partners, Holy Cross Energy, Leeward Renewable Energy, Nightpeak Energy, Yes Energy, and Xcel Energy. The company has raised approximately $8.2M cumulatively, including a $6.4M seed round in December 2024 led by Buoyant Ventures, Constellation Technology Ventures, and MassMutual Ventures, and is a Techstars Alabama EnergyTech 2021 graduate and NSF Phase I SBIR grantee.
Sunairio firmographics
Firmographics- Name
- Sunairio
- Legal name
- Sunairio, Inc.
- Website
- https://sunairio.com
- Company type
- Private
- Founded year
- 2020
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- Sunairio builds an AI-driven weather and grid forecasting platform (Sunairio ONE) that generates probabilistic, high-resolution ensemble forecasts and asset-level energy predictions for energy traders, grid operators, and renewable asset developers across the Continental US.
- Ownership category
- akta.pro rank
Sunairio industry classification
Industry- Product category
- Renewable Energy Forecasting Software
- akta.pro primary industry
- Climate & GHG/Emissions Modeling & Scenario Analysis (Inventories, Projections, Net-Zero Pathways) (EUAHAKAH)
- akta.pro secondary industries
- Downscaled Climate Projections & Scenario Analytics (CMIP, SSP/RCP, Regionalization) (EUABALAB), Early Warning, Event Monitoring & Forecasting (Extreme Weather Alerts, Nowcasting) (EUABALAJ)
Keywords
Where Sunairio is headquartered
LocationHeadquarters
- HQ city
- Baltimore
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
Sunairio business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Personnel, Technology or R&D, Marketing or Sales, Infrastructure, Operations
Revenue model
- SaaS Platform Subscription: Three-tier subscription plans (Current, Horizon, Continuum) providing different forecast ranges, data access levels, and support. Access via UI and API. Data delivery through Snowflake for enterprise tiers.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Subscription | Annual | Current - 15-day forecast range with UI access |
| Subscription | Annual | Horizon - 18-month forecast range with Snowflake access |
| Subscription | Annual | Continuum - 15-year forecast range with full data access |
Go-to-market motion2 records
Distribution channels3 records
Marketing channels5 records
Sunairio product offering
Product offeringCore offering
Sunairio provides a unified weather, climate, and energy forecasting platform delivered as enterprise SaaS. The flagship product, Sunairio ONE, generates 1,000-member hourly ensemble forecasts spanning 15 days to 15 years at 2km resolution for power markets, utilities, and independent power providers. Forecasts are accessible via web UI, Python API, and Snowflake data share across three subscription tiers.
Product overview
Sunairio offers a unified platform for next-generation grid forecasting that integrates weather, climate, and energy insights. The core product is Sunairio ONE, which generates 1,000-member hourly ensemble forecasts spanning operational (hours to 18 months) and planning (up to 15 years) time horizons. Sunairio ONE is powered by two foundational technologies: the Sunairio High-resolution Earth Data (SHED), a proprietary 100x higher resolution historical weather dataset covering 1950-present, and Sunairio Digital Twins, physics-based models of over 1,400 wind farms and 7,500 solar farms. The platform is offered through three pricing tiers (Current, Horizon, Continuum) that provide progressively longer forecast horizons and data access options including API and Snowflake integration. Key add-on capabilities include Asset-Level Generation Potential Forecasts for nodal trading and the Grid Stress Index metric for grid reliability planning.
Differentiator
Problem solved
Functional benefit
Brands
- Sunairio ONE: Omniscale Next-generation Ensemble forecasting product that generates 1,000-member hourly ensembles for weather and energy insights across all time scales.
- The SHED (Sunairio High-resolution Earth Data)
- Grid Stress Index
Products and services
- Sunairio ONE Next-generation grid forecasting platform that generates 1,000-member hourly ensemble forecasts spanning from 1 hour to 15 years with 2km spatial resolution. Provides calibrated, high-fidelity weather, load, renewables, and price forecasts for energy traders, grid operators, and asset developers, accessible via web UI, Python API, and Snowflake data share.
- SHED (Sunairio High-resolution Earth Data) Proprietary high-resolution historical weather dataset created at 100x higher resolution than alternatives like ECMWF's ERA5, covering 1950-present over the Continental US and continuously updated. Validated to be more accurate than NREL's benchmark renewables datasets and serves as the training data foundation for Sunairio ONE forecasts.
- Asset-Level Generation Potential Forecasts Hourly generation potential forecasts for every utility-scale wind and solar farm across major ISO power markets, beginning with ERCOT. Isolates weather-driven energy potential from grid-enforced transmission limits to quantify curtailment risk before it happens and provide inputs for power flow and trading models.
- Sunairio Digital Twins High-fidelity physics-based models of wind and solar farms. Wind Digital Twins incorporate CFD-based wind field downscaling at 100m resolution and turbine-by-turbine waking. Solar Digital Twins leverage PVlib modeling for asset-specific generation characteristics. Covers over 1,400 wind farms and 7,500 solar farms and powers Asset-Level Generation Potential Forecasts.
Quantifiable outcome
- 97% of hourly extremes captured vs traditional forecasts
- +4 more outcomes
Companies that use Sunairio
Customer profileNamed customers10 records
Segments5 records
Ideal customer profiles4 records
Sunairio technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- Yes
- API docs
- API detail
Core technology
AI maturity
App detail
Integration1 record
AI capability5 records
Feature5 records
Sunairio partnerships and signals
Strategic signalPartnerships
Two partnerships are on record, tiered core.
- EPRI Climate READi Affinity GroupcoreIndustry collaborative approach to managing climate risk in the power sector. Sunairio provides technical expertise in predictive climate and energy analytics.
- Techstars AlabamacoreTech accelerator program. Sunairio was selected for the EnergyTech class of 2021.
Scale indicators6 records
Recent moves6 records
Expansion highlights6 records
Sunairio competitors and assessment
Company assessmentEmerging players
- Reuniwatt: Reuniwatt specializes in solar irradiance forecasting and sky-imaging solutions for utility-scale solar operators and grid managers. It overlaps with Sunairio's solar Digital Twin and asset-level generation potential offerings, with a narrower focus on solar irradiance.
- Tomorrow.io: Tomorrow.io operates a weather intelligence and forecasting platform serving multiple verticals including energy, logistics, and public sector. It overlaps with Sunairio in the energy forecasting segment with its own API-first, ensemble-based approach, though its core go-to-market is broader than renewables.
- RESurety: RESurety provides revenue risk analytics and asset valuation tools for renewable energy investors and developers. It is comparable to Sunairio in serving IPPs and renewable portfolio managers, with overlapping use cases around production risk quantification and portfolio optimization.
Direct peers
- StormGeo: StormGeo provides weather intelligence and decision support for energy, shipping, and offshore industries, including renewable energy forecasting and grid risk services. It directly competes with Sunairio for utility and trader customers, with overlapping products in asset-level wind and solar forecasting.
- Meteomatics: Meteomatics provides high-resolution global weather data and forecasting APIs for enterprise energy, agriculture, and industrial customers. It is comparable to Sunairio in the weather data API and energy forecasting space, with a focus on spatial resolution and configurable forecasts.
- Yes Energy: Yes Energy provides real-time and historical power market data, price forecasting, and analytics for traders and utilities. It is both a Sunairio partner (co-hosted webinars, joint analytics) and a peer in price forecasting and market analytics for the energy trading segment.
- Vortex: Vortex is a Spanish company specializing in weather and climate data services with a strong focus on renewable energy forecasting for wind and solar operators across Europe and Latin America. It is a direct peer to Sunairio in renewable generation forecasting, with comparable Digital Twin modeling and asset-level outputs.
Others
- Energy Toolbase: Energy Toolbase is a software platform for distributed energy resource project design, storage dispatch optimization, and control. While adjacent rather than directly competitive, it serves similar utility and developer customers evaluating renewable and storage economics, making it a comparable reference point for Sunairio's planning-tier offering.
Broad incumbents
- DTN: DTN is a large incumbent providing weather, climate, and environmental data services to energy, agriculture, and other industries. It competes with Sunairio in the energy forecasting segment with broader geographic coverage and a longer enterprise track record, though Sunairio differentiates on resolution and ensemble depth.
- IBM Environmental Intelligence Suite: IBM's Environmental Intelligence Suite combines weather data, climate risk analytics, and asset-level forecasting for utilities, traders, and insurers. It is a broad incumbent competitor with deeper enterprise relationships and a wider geographic footprint than Sunairio.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks5 records
Key highlights7 records
Customer concentration
Sunairio financial estimates
Financial estimateRevenue estimate
Valuation estimate
Sunairio leadership team
Management profileNumber of profiles
Profiles17 records
Sunairio funding detail
Funding detailFunding overview
Funding rounds4 records
Investors9 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Sunairio M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Sunairio
What does Sunairio do?
Sunairio provides a unified weather, climate, and energy forecasting platform delivered as enterprise SaaS. The flagship product, Sunairio ONE, generates 1,000-member hourly ensemble forecasts spanning 15 days to 15 years at 2km resolution for power markets, utilities, and independent power providers. Forecasts are accessible via web UI, Python API, and Snowflake data share across three subscription tiers.
Is Sunairio a public or private company?
Sunairio is a private company. It is classified as venture growth investor backed and is currently operating.
When was Sunairio founded?
Sunairio was founded in 2020. It employs 1 to 10 people.
Where is Sunairio based?
Sunairio is headquartered in Baltimore, United States, in the North America region.
How does Sunairio make money?
One revenue line is on record: saaS Platform Subscription.
Who are Sunairio's main competitors?
Emerging players on record are Reuniwatt, Tomorrow.io and RESurety. Direct peers are StormGeo, Meteomatics, Yes Energy and Vortex. Energy Toolbase is listed as an others. Broad incumbents are DTN and IBM Environmental Intelligence Suite.
Does Sunairio have an API?
Yes. Sunairio provides API access as part of its plan tiers (Current, Horizon, and Continuum plans). The API enables access to weather forecasts, energy forecasts, backcast data, and SHED data. Data can be accessed via API and also via Snowflake connector for enterprise plans. Developer documentation is at app.sunairio.com.
What industry is Sunairio in?
Sunairio's product category is Renewable Energy Forecasting Software. Its primary akta.pro industry code is EUAHAKAH, Climate & GHG/Emissions Modeling & Scenario Analysis (Inventories, Projections, Net-Zero Pathways), with a secondary code of EUABALAB, Downscaled Climate Projections & Scenario Analytics (CMIP, SSP/RCP, Regionalization).