Thanks @Greebo. I am looking forward to trying this out. I tried running the $ python -m pip install requests command, but with no luck. I assume that I have to get the source code onto my EmonPi as well ( I thought that Python was already installed as part of the emonsd package), but wanted to check with you before fiddling around with my EmonPi. Apologies for this question, which reveals the world of programming ignorance that I inhabit. Time Of Use app in use and much appreciated.