That's because he hasn't fixed the bug in his code yet, and my mod won't enable it until the version bumps up. I left a comment for him with the fix, but I'll try a pull request in Git. You can fix it yourself if you unzip ElectricVehiclesReborn and change "equipment.lua", line 69, to "MJ" instead of "MW", and change the mod version to 0.1.2 in info.json and the folder name.