I need to send the data logged to feed of the Emon Pi (eg. kWh, power to kWh, etc.) to node-RED platform. I have already send this historic data to the emoncms to read remotely and I already read the information through this link: http://emoncms.org/feed/value.json&apikey=APIKEY&id=FEED_ID.
You could simply publish it to MQTT and read it into Node-Red or even simply read the ‘emon/#’ topic feed that is used to pass the data between emonhub and emoncms.