Discover our solar power forecasting tools
NEXT, the new solar irradiation and power forecasting software, providing accurate nowcasting, hour, day & week ahead forecasts to all photovoltaic professionals

3 irradiance and photovoltaic power forecasting services
For photovoltaic energy professionals

NEXT your accurate forecasting software from 5 minutes to days ahead.
NEXT is a tool that uses an artificial intelligence algorithm to forecast irradiation and resulting photovoltaic energy production.
NEXT provides estimates of irradiation as well as production (kWh), at site level or for a portfolio of photovoltaic power plants, which can be used directly by operators, traders and aggregators, grid managers and industrial companies with isolated sites.
- Anticipate changes in the energy market and the supply/demand balance
- Optimise storage use
- Minimise losses and increase asset profitability
- Manage network balance
For PV OPERATORS & ENERGY GRID MANAGERS

SKY: Cloud observation & modeling for power drop detections
SKY is the most accurate forecasting tool on the market for the climatic hazards impacting photovoltaic energy production at isolated sites.
Thanks to an innovative hemispherical camera network approach, SKY is able to assess cloud cover, movement, altitude and density, so you can anticipate power losses in your isolated or hybrid PV installation at very short term.
- Incorporate solar power into your industry without impacting business activity
- Control different energy sources with assisted or automated decisions
- Balance supply and demand
- Optimise energy storage/destorage and sizing
For photovoltaic project developers

CUBE: maximising and optimising project financing.
CUBE is the first service in the world to incorporate a meteorological measurement cabin installed on site during the development phase of a photovoltaic power plant, to refine and validate the energy production potential.
CUBE revolutionises best practice when it comes to estimating a site's solar radiation potential for photovoltaic power plant development projects. The one-year on-site measurement campaign enables the solar resource of your site to be properly qualified.
- Secure your project with investors, banks and technical advisors
- Consolide financial profitability
- Reduce the project's risk profile
- Improve sizing of storage - hybrid & grid systems
CalibSun, beyond solar data
Solaïs, a photovoltaic expert with 15 years of experience, founded CalibSun to offer a state-of-the-art scientific approach to solar forecasting.
HISTORY
After 12 years of R&D with the Ecole des Mines de Paris, Solaïs is launching its spin-off CalibSun in 2023. An innovative start-up at the cutting edge of solar energy and artificial intelligence, it offers high added-value turnkey solutions for every player in the PV sector.
TEAM
Our team of experts, based in France, consists mainly of data scientists specialising in solar energy, meteorological data and satellite image processing.
MISSION
CalibSun facilitates the large-scale adoption of solar energy through its operational, strategic and financial optimisation services based on solar resource forecasting. Our forecasts are designed to meet the needs of all photovoltaic professionals.
VISION
CALIBSUN makes it possible to secure investment in new projects, optimise the operation of photovoltaic power plants by maximising revenue and optimising storage management.
HISTORY
After 12 years of R&D with the Ecole des Mines de Paris, Solaïs is launching its spin-off CalibSun in 2023. An innovative start-up at the cutting edge of solar energy and artificial intelligence, it offers high added-value turnkey solutions for every player in the PV sector.
TEAM
Our team of experts, based in France, consists mainly of data scientists specialising in solar energy, meteorological data and satellite image processing.
MISSION
CalibSun facilitates the large-scale adoption of solar energy through its operational, strategic and financial optimisation services based on solar resource forecasting. Our forecasts are designed to meet the needs of all photovoltaic professionals.
VISION
CALIBSUN makes it possible to secure investment in new projects, optimise the operation of photovoltaic power plants by maximising revenue and optimising storage management.
Our partners



Our Clients



15 years
of expertise in photovoltaics
+20
types of data combined
15
scientific publications
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