Last week the New York Times Wirecutter ran an article whose headline posed a question; Do You Really Need a Home Energy Monitor? It’s an interesting question.
They say only that you might save some money. Maybe. And they even question that assertion. Well, we installed a Shelly 3EM last year for reasons that the Wirecutter article completely fails to mention. So, I thought it worth sharing our experience.
As we come to the end of the year, I’m looking back across a range of substantial household projects. We rather famously lost power for a few days back in February 2021 during an unusually cold snap. This lead to some additional thinking about household projects, including the new air conditioner. Specifically, how best to adapt our home to operation without utility power? After all, the Great Texas Freeze of 2021 was not the first time we lost power for days. We were without power for several weeks after Hurricane Ike in 2008.
The most common approach that we see around the neighborhood is the installation of a standby generator. These are permanently installed systems that startup and take over when utility power fails. Generac, Kohler and Cummins are the most common brands. They typically run on natural gas and I’ve seen systems from 14 kW to 32 kW hereabouts.
Given the position of our home on the lot, and the location of the gas meter and breaker panel, it’s not really practical for us to install a standby generator. It would be prohibitively expensive given the required location of the generator. We’d need to run buried pipe for natural gas, and conduit for electrical cable, a considerable distance. The cost of the installation is much more than the generator itself. The entire project cost is as much as a new air conditioner, for a benefit that that would only occasionally be realized.