I was hyperventilating as I read this as ESP8266 runs for months on a charge but still ePaper is a great move on a path to finding self sustainable internet con

I was hyperventilating as I read this as ESP8266 runs for months on a charge but still ePaper is a great move on a path to finding self sustainable internet connected (w/ extending wifi possibly falling back on 3g) devices in the wild. Has anybody done experiments to see if you can power esp8266 with solar cells with portable battery? We are in for some truly exciting applications.