It's The Little Things Which Make An App


I've been a big fan of Ovo Energy since switching to them last year. They email me a PDF statement, pay me 3% interest on any overpayments, and have their call centre waiting times displayed prominently on their homepage. So, when they announced their new app, I was expecting something a little bit special. And […] Read More

How Our Solar Panels Have Performed After 1 Year


Last year, Liz and I took the plunge and had Solar Panels installed on the house we rent out. I've been tracking their progress, and so now it's time for our yearly update. We based our estimations on the Europa Solar Calculator which estimated that they would generate around 2,700 kWh per year. Annoyingly, we […] Read More

Humm Duet - Speedometer


I'll go through all the features of the Humm Duet Energy Monitor as I figure them out, but there's one that I'd like to highlight because it's a perfect example of usability and how a little improvement can go a long way. The left half of the Duet is concerned with electricity. I want to […] Read More

Humm Energy Monitor Set Up – Part 3 – Data


My Humm Energy monitor is now fully set up.  It's been churning away gently admonishing me for going over my kWh allowance for the day. As I mentioned in the unboxing - there's an integrated 2GB SD card for the Duet to record the energy usage.  As the trial progresses, I should be able to […] Read More

Humm Energy Monitor Set Up – Part 2 - Gas


After setting up the HummEnergy Duet electricity monitor yesterday, I was pleasantly surprised at how easy the gas monitor was to set up. Pairing the device was easy and the manual was very clear as to which pipes need to be monitored. A velcro strap makes it really easy to attach the wires to the […] Read More

Humm Energy Monitor Set Up - Part 1


After seeing a talk at BarCampBrighton on home energy monitoring, I was determined to try it out for myself.  I got the Duet from HummEnergy. At £50 it's very competitive to other units in the marketplace - although that is the trial price.  It's important to note, this isn't a "SmartMeter".  It doesn't replace your […] Read More