Free and premium solar irradiance calculator

Get bankable yields by connecting your trusted meteo data streams

4.5+160 reviews in G2

Accurate solar irradiance data is the foundation of your future PV plant. You can easily upload your own TMY dataset in .csv or connect to trusted sources to ensure the bankability of your utility-scale solar project

  • Integrated with open-source and premium solar flux data streams
  • Upload your own irradiance data
  • Get project capacity and bankable energy yield estimates while designing
  • Full package of engineering documentation ready for your stakeholders
Solar irradiance calculator

Doubling PV project development bandwidth with RatedPower

«Thanks to the new developments created by RatedPower that adapt to our needs, we could double our capacity. The time we used to spend on designing and reviewing designs is now focused on doing more projects.»

Lennin PiñeiroDevelopment Engineer at Celsia
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Automate your asset design and project optimization

Energy production estimates you and off-takers can trust

Unlock the potential and boost productivity of your development and engineering teams across the entire PV project lifecycle.

Open-source solar irradiance data streams

Open-source solar irradiance data streams

  • PVGIS
    RatedPower is seamlessly integrated with PVGIS. It's a free database with information about solar radiation and PV system performance.
  • NASA
    Pull meteorological and solar-related parameters directly from NASA POWER into RatedPower's platform. These open-source data sets are provided to assist in the design of solar-powered renewable energy systems.
Solar flux calculator

Premium data streams

  • SolarAnywhere®
    SolarAnywhere is an accurate global solar data partner for project developers, financiers, and operators. Use bankable-grade data depth and accuracy for your next solar project directly from RatedPower.
  • Solcast, a DNV company
    Solcast provides bankable actuals and TMYs and accurate high-resolution weather and irradiance data built for the solar industry. Solcast data is validated globally and captures terrain shading, snow soiling, and localised aerosol effects.
  • Solargis
    Solargis is the energy industry’s trusted source for solar data, software, and expertise. Solargis data has helped develop 500+ GW of assets worldwide and is used for monitoring and forecasting solar power plants with a combined capacity of 100+ GW.
Insolation calculator

Use the built-in templates to import your own solar influx data

Drag and drop your .csv file with TMY data. RatedPower supports:

  • SolarGIS hourly and monthly
  • SolarAnywhere hourly
  • NREL TMY3 hourly
  • PVGIS5 hourly
  • Meteonorm hourly

If you have meteorological data from other sources, you can adapt your .csv to the available templates.

Take a free product tour

Not ready to buy just yet? No problem. Take a free product tour and discover our solar software at your own pace.

Thousands of professionals choose to work with our solar flux calculator and design software

EPCists expediting PV design and deliverables with solar software

«We looked for a tool that was quick for performing basic design and optimization, automatically producing deliverables. RatedPower increased the number of bids we could prepare and submit by around 50%.»

Stefano PapaleGlobal Head of Business Development at FATA
Stefano Papale

RatedPower's speed helps us boost our competitive advantage

«Now we can turn around design documents within hours and minutes to stakeholders, landowners, partners or engineers, to get through our regulatory process. This has allowed us to move projects forward faster.»

Megan ParsonsChief Engineer at Blue Ridge Energy
Megan Parsons

Accelerating solar design from 5GW to 30GW per year

«Before RatedPower, there was a high level of variability, simple land layout to more irregular layouts. Now, we can quickly filter down sites from what is possible to what is realistic.»

Robert WrightDirector for Solar and Storage at Burns & McDonnell
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Expanding solar projects beyond local borders

«We can now run simulations hundreds of times to find the most optimal solution for our customers, considering everything from modules, inverters, and pitch distance, to the financial assessment of all these different configurations.»

Grant PadiniProject Planner for Utility-Scale PV Systems at Ampere Dynamic
Grant Padini

Streamlining BayWa's pre-engineering workload

«We needed software that was easy to handle, fast, and detailed. Now, with RatedPower, our developers can design in half an hour. Using AutoCAD or other tools would take one or two days.»

Mirko SchiezlHead of Engineering at BayWa r.e.
Mirko Schiezl

Transitioning from 1MW ground-mounted projects to 250MW in 9 months

«RatedPower really helped us eliminate our bottlenecks. It goes beyond other tools because it helps us design not just the low voltage or medium voltage, but also the connection point to the grid.»

Lorik HaxhiuFounder, iRN
Lorik Haxhiu

Harnessing RatedPower to carry out invaluable PV equipment analysis

«RatedPower provides us with simplicity and flexibility in our solar projects while requiring fewer resources. Other software options typically demand more resources on our end to complete these calculations.»

Nicolás Fernández-VelillaSystem Solution Engineer at Sungrow
Nicolás Fernández

Empowering solar PV design customization through faster iterations

«In one or two weeks, I became very familiar with the software. I was able to do more iterations on our solar layouts, and we could fill the interconnection requests in no time.» 

Íñigo Sangroniz Solar Development Engineer at Solea Power

Competitive positioning in large-scale overseas PV plant bidding

«RatedPower has a solid customer base and good reputation abroad. It delivers required documents in multiple languages for our global bids while adopting international design standards»

Feng YuHead of New Business Department, Overseas Business Division at POWERCHINA
Feng Yu

Optimizing PV projects and overcoming the limitations of legacy software 

«We have received a highly professional response when we needed support or training from the team. RatedPower helps us optimize our projects and provides us with a significant advantage over our competitors

Saad UmerExecutive Manager, Solar PV Network Head at ACWA Power
Saad Umer

Doubling PV project development bandwidth with RatedPower

«Thanks to the new developments created by RatedPower that adapt to our needs, we could double our capacity. The time we used to spend on designing and reviewing designs is now focused on doing more projects.»

Lennin PiñeiroDevelopment Engineer at Celsia
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Enhancing land assessment efficiency for PV developers

«RatedPower produces a set of documentation to deal with most of the environmental agencies' requirements and for application of grid connection authorization processes.»

Luis Guilherme CastroSolar Development, Engineering Manager at Casa Dos Ventos

Centralizing solar development in one app

«We used to use a mix of tools like AutoCAD, spreadsheets and PVsyst. Now with RatedPower, our team can be innovative and explore more possibilities without wasting time, as each design only takes minutes to run.»

Thomas GerstchHead of Engineering at Iberdrola
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Iberdrola

Reducing PV layout generation time by up to 95%

«RatedPower allows us to have the capacity to do more strategic front-end early contractor involvement, helping us build projects faster and reducing schedule overrun risk.»

Cris Vincent AlidonVP, Engineering and Execution, Aboitiz Power
Cris Vincent Alidon

Aligning stakeholders from development to procurement

«The solar industry is becoming more volatile and complex. In today’s world, developers, contractors, and buyers need flexible, scalable and configurable cost estimation tools linked to design for running different scenarios.»

Özer ErgulHead of Procurement
Özer Ergul

A three-in-one software that saves PNE time and resources

«It's easy to use, even for non-technical users. Now, anyone in our offices can efficiently create their own designs, and our German engineers can manipulate anything in our projects remotely since RatedPower's platform is cloud-based

Hugo NavarroSenior Photovoltaic Design Engineer at PNE AG

Driving efficiency and optimizing resources for more than 50 projects

«RatedPower offers highly personalized customer support. The team has been efficient in solving our doubts and helping us learn how to make the most out of the tool based on our unique needs.»

Antonio VerdugoHead, Technical Office Engineer at ABEI Energy
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