Monitoring home electricity usage

摘要

Thanks to Andrew Gross and Al Lockyer or their replies in the February 2018 issue (Mailbag, pages 8-11). These were in response to my earlier letter regarding monitoring home energy usage, which was published in the August 2017 issue (page 4). In fact, I had already chosen to use a commercial solution called "engage" (https://engage.efergy.com/) although I would have much preferred an open-source solution. The product that I chose uses three clamp meters to measure the mains current flowing in each phase connected to the home and infers the overall energy usage from these readings.