In part 2, I discussed logging the data from my Current Cost device into a MongoDB database using a small app running on my home server. It turns out I have made a glaring schoolboy error, which thankfully I have caught before it causes an actual problem. Having had some time to collect data and start analysing it, I've also found a couple of other problems as well. I thought it would be worthwhile to revisit these issues.

Following on from part 1, I am looking to reduce my energy usage through a Current Cost Envi device which allows me to capture data on my energy usage. Now that I've received my Envi and data cable, it's time to start capturing that data!