Home Energy magazine would like to include a list of great carbon calculators in an article we are working on. Does anyone know of a good carbon calculator that also accounts for renewable energy offsets? A better question may be: do these exist?


Thanks for your help!

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This might not be popular with some, but Garbage In = Garbage Out which equates to alot of the calculations & science used

The only carbon calculator that I'm aware of that is approved in Texas for reporting on carbon reductions was developed by Texas A&M's Energy Systems Laboratory.  It's called IC3, which stands for International Code Compliance Calculator.  It's free and you can learn about it at:




and download it or use it online at:





Doug Garrett

Thank you, Doug!

Not sure what you mean by "renewable energy offsets" but...


Thanks, Chris! This is partly what we are looking for because it provides an area to show purchases of electricity from a clean energy program.



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