This is a multiple Power Monitor for the mod OpenComputers.
It will read from Rf Tools, Draconic Orbs and Thermal Expansion Power cells
You can have multiple Cells. at the same it
it will disaply and a Totel Power of all the cells.
To install "wget https://raw.githubusercontent.com/ebonyfaye/Minecraft-OC/master/Power/Power.lua" then run Power.lua
screen size is 2x3
hi yes i been looking for the same as well, so i started work on it, nerver used opencomputers (did some cc stuff a long time ago) but am very good in LUA as its used for addons in a very well known game.
Here is somthing i have come up with fast.