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Co-Founder and CTO for SolarBI

In the world of Solar Irradiance there are great services out there producing awesome data for solar projects.

Solcast Logo

One of my favourites is Solcast, they do a cracking job democratising Solar Data. 

So kudos to its founders Dr.  Nicholas Engerer and James Luffman.

Solcast has two big groups: historical & TMY and live & forecast solar data. You can have static data results or live ones, connected to your systems via a pretty handy API toolkit.
In addition to other cool stuff, you can create a data request for historical data very similar to our search engine. 
I’ve prepared a quick table to what’s on offer, how it compares with ours. 

Historical Data

Solar BI Quick Results Solar Irradiance Search
Available Date Range 1/1/2007 to 4/2/20201/1/1990 to 1/12/2019
Granularity 5, 10, 15, 30, and 60 minutesHourly, Daily, Weekly, Monthly and Annual
Parameters GHI, DNI, EBH, DHI, air temp, zenith, azimuth, cloud opacity, dewpoint, wind speed, wind direction, relative humidity, precipitable water, snow depth, surface pressure.Default DNI, GHI and upto 3 year Generation
Solcast and SolarBI are different products, but in historical data, we overlap just enough to make interesting. 
So Ladies and Gentlemen start your engines! 

The Terms

  • Dates : 1/1/2007 – 1/7/2019
  • Granularity : Hourly/60 mins
  • Parameters : GHI/DNI 

*SolarBI default calculates 3 years of Generation, but we don’t count it because Solcast doesn’t have an equivalent


.............GO GO GO GO GO

Speedforecast 9.25 minutes actual 6 minutes
Output FormatCSV, Solcast, PVsystCSV
$400USD Once off payment or 
$150 when $250 credit is its applied
$19AUD per month for 7 searches (~$2.8AUD per advanced search)
or $0AUD on ours Free Trial
Truth be told, we didn’t pay the $400USD to confirm the speed or compare the data, but we use their estimate delivery time. 
Who won? You decide.  We like them, and we hope you do too!
I am super impressed with the work that the Solcast team has done. By far the most complete solution out there – it’s intense, detailed, and offer a wide range of products. 
Well Done, Well done!!


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Cheers to all 



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