DesignBuilder Result Viewer units
I ran a simulation on EnergyPlus through Open Studio. Everything looks fine in OpenStudio results, but when I open the .eso file in DesignBuilder Resul Viewer all the values are randomly multiplied by 100 or 1000 or so in the chart.
I have never seen this problem in Results Viewer. Bear in mind that some values are translated from J to kWh depending on how you have configured the program in Tools>Options>Units.
If you are running the latest version 3.1 and still having issues then I suggest you to contact the RV developers by raising a support ticket at DB Support Desk - https://support.designbuilder.co.uk/ and attach the .eso file.