OpenEnergyDashboard
Allow negating meters within groups
Allow users to tag meters as subtracting from any group they are in, to support power generation.
To allow for correcting for energy units, errors in how meters are installed, and other issues, it would be great if we could apply a multiplicative factor to each meter added to a group. 1.0/-1.0 makes add/subtract a special case of this. Baselining the individual meters may be related but an easier example.
This can now be done indirectly by creating a conversion with slope = -1. A better, easier solution might be desirable.
The issue with using the current conversions to negate within a group is that it is applied to all underlying meters so you cannot subtract one meter from another. As a result, OED should come up with a design to allow for the negation of meters within a group while still allowing others to be added.