Need guidance on estimating Scope 2 emissions

[MichaelTiemannOSC]

I this report, Worthington Industries gives a very good accounting of Scope 1 emissions and energy use: https://worthingtonindustries.com/getmedia/015180e0-7ec8-4e5c-9342-91d372ab6c9f/2020-Corporate-Sustainability-Report.pdf

But they do not report Scope 2 emissions though they do report the number of GJ drawn from the electricity grid. What is a good way to estimate Scope 2 emissions based on GJ usage? The principal plants are in OH, so perhaps there's an average grid emissions intensity in OH?