Horrific Detection!


  • Does Sense detect Halloween in your house?

  • In horror movies, things are usually dark … do we think this reduces overall electric consumption around this time of year? (OLED owners take note!)

  • In the realworld horror of the fires in PG&E land, is anybody thinking about the possibility of using the billions it would cost to bury cables instead to fund off-grid and/or “simplified grid” solar … localize the generation to reduce the number of wires. I have been wondering if a solar PV roof (more solar tile than panels) offers improved fire protection? A direct solar rooftop system has water in it so involves plumbing to the roof.

You almost gave me a Halloween heart attack with that title.

I’m unfortunately locked out of my Facebook account at the moment due to some issues (i.e., a nightmare) with 2FA, but someone over at the Sense Energy Users FB group posted there before/after holiday lighting consumption. It was pretty staggering.

For the second point, I have some interesting data there that I hope to share soon. I’ll be sure to post here as well.


Having contemplated holiday lighting energy bleed I have determined that a good Sense application would be the night monitoring of your solar PV milking the neighbors.

Angles are a little tricky for fixed panels. Might need mirrors.

Anybody on low-cloud nights detecting anything?

On a crystal clear night, with full moon and lots of stars, I get nothing what-so-ever. I have 33-235w LG panels each with an Enphase micro-inverter. I’ve checked both Sense (which actually reads a tiny (-2w) amount of negative Solar…perhaps the controller electronics) and the Enphase application, which shows zero.

I am up on a small mountainside in the woods, so there is no “milking the neighbors”, or town, or city, etc.

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Proximate artificial light has at least an order of magnitude higher illuminance than the fullest of moons in the clearest of skies. Probably more like 3-4 orders of magnitude for a seriously bonkers holiday display. That said, the angle is obviously the problem.

Starving artist types moving in to NYC in the 60s and squatting in the downtown industrial squalor would apparently cut big holes in the floor to get heat from commercial spaces below. Taking a panel and leaning towards your neighbor isn’t exactly equivalent but it does have a certain holiday spirit about it.