Video works fine in edge ;p
A note though, I don’t know whether it is something funky with the refresh rate of the video, but I think it will be rather confusing having the bar go down to zero, then build up so slowly.
I was starting down a similar route with a neopixel display connected to an esp8266
The display I had is 40 pixels, arranged in a grid 8x5
I was going to have a bar for total usage, green one end, red the other scaled 0 to 4kw
another yellow to white scaled 4kw for solar
and thinking about cooker, and upstairs/downstairs circuit or maybe outside temp.
I had set the device to read a single topic from MQTT, but then split that topic down further:
espdisplay/N/(r|g|b|s|h|c|c|m)
where N was the row number, r/g/b would be the red green blue components of the left of the display, s/h/c are the components of the right of the bar, and m is the maximum, v is the current value
I was at the point of saving these values to the onboard flash, when I think my regulator gave up 
Until that point, the whole 40 leds, and the esp8266 were running from a single 3.3v regulator.