Hi, Have the above mentioned docs on power/data saving modes been written ?
I too am very interested in low data use, and low power use for a battery powered sensor project.
I have trawled through pages and pages of forum wisdom. I've also read:
https://docs.particle.io/reference/firmware/electron/#sleep-sleep-29
I will try to explain...
I'm using an Electron with an additional 12v 9Ahr battery (boosted with solar charging) that reads an anemometer every 2 s.
Stop-mode sleeping (System.sleep(SLEEP_PIN,FALLING,2))
in between readings and only publishing a Health Status update daily (to me) and publishing an alert to the client if wind exceeds storm levels.
This has been working fine for the last 6 months 
Now I want to add 20min live web based graphing.
I have hacked up test code working on my test Electron, but I now want to optimise that code for battery life.
The code I have working simply uses a delay of 2s, stays connected all the time and publishes data every 20mins to keep inside the magic 23 minute ping window. Thus keeping the data use as low as possible.
To keep my current consumption as low as possible I would like to be able to stop the micro and sleep for 2s between readings as the time spent awake to do a few ADC readings and check for excessive winds is very short.
The tricksy part is that I then want to connect every 20 mins, publish a string of data values concatenated together and disconnect while leaving the network on standby for the next publish in 20mins.
From what I have read, it seems this isn't possible at the moment because when I call Celular off(), it's not possible to also call NETWORK_STANDBY.
(please correct me if I'm wrong)
It seems that the above will be fixed with 0.6
Does anyone know when this 0.6 will be released ??
If anyone can see a way around the above issues before 0.6 comes out, please let me know
Thanks
Ants