Feature request: Weather overlay over usage graph


I wish there was weather (temperature) data overlay over the power usage graph more specifically for AC device. This will give an idea of how the device is performing.


As I use Wunderground for my weather collection, I would like to be able to grab a screen shot of the Usage page to overlay on my weather page.


You guys might be better off with something like an Ecobee thermostat for that usage - The Ecobee thermostat gives CSV dumps of outside temp, inside temps (multiple sensors), aggregated temp, on/off cycles. Here’s a sample of one view from the Ecobee web app.


The ecobee readouts are great, but the outside temp may be a little off, depending on where the readings are coming from.

I’ve got a calibrated temp sensor outside in the shade I trust more :slight_smile:


If you have not put a thermometer on the intake vent and a vent output one might be surprised by the increase in cooling with cooler temperatures. Also if duct work is in the attic there is a difference on a sunny day or time of day.

I would also like some type outdoor temperature or maybe cooling degree day each day. I also like the weatherunderground.

Ok i admit I am cheap or just not a lot of extra money to spend and am trying Sense to save money. Does it cost less to cool in the morning and then let it get warmer in the house during the day?

This is just a guess I have not done a great job tracking but, I can get up to twice the cooling in the morning before daylight compared to say 3pm.(I have an extra long return which done for looks and not energy usage, I am almost tempted to move it, but then I would have to add some extra vents.) And in the morning (70F) it draws about 2450 watts vs 2800 watts at 3pm, 95F. But so for Sense give an average wattage usage of about 2500 watts all the time and I also have two units. I was told a fix is on the way. Also how well a house is insulated would make a big difference. On the other unit it is like a 30% more efficient with lower temps.

Yes IMHO outside temp could be helpful in knowing if a unit needs freon or not, or that was my hope in buying Sense.


There was a story here on the news recently about “supercooling” your home. I suppose it works a little like watering your lawn - not much sense wasting a lot during the day when it evaporates, we typically water a few hours before dawn to give it a chance to soak in while the sun’s down and it’s still cooling out.


Sure. I do have ecobee for one of the HVAC system. The other one has OEM thermostat.
In any case, having it with SENSE will bring together everything.


I’m a fan of “supercooling” but did not know that it had a moniker.

Summertime has everyone at home during work hours and we have peak pricing hours so I try to keep the A/C off till at least 5:30PM so I supercool the house to 70F just before the 7AM higher pick cost.

Hard to say how much it helped but my daily usage split now has most of the cooling kWh during off-peak when it is cheaper. :grin: