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nickcwtoday at 1:19 PM4 repliesview on HN

> Her 3.5 foot by 3.5 foot solar panel weighs about 25 pounds and is a half-inch thick. It can harvest about 220 watts of energy from the sun each day.

Grrrr. Watts is not a unit of energy.

As a holder of a physics degree this annoys me quite a lot. Journalists seem to have trouble keeping track of energy vs power. It's like saying my friends house is 5 miles per hour away.

/rant off


Replies

foobariantoday at 1:28 PM

You have to just close your eyes and hum a requiem for the glory days. Like I do when questions are begged

WarmWashtoday at 1:53 PM

>As a holder of a physics degree this annoys me quite a lot. Journalists seem to have trouble keeping track of energy vs power. It's like saying my friends house is 5 miles per hour away.

I've ranted endlessly about the outsized impact people with no expertise but a large audience have had on society. So so many people have the worldview shaped by individuals that cannot even bother to learn basics like watts and watt-hours for their "reporting".

hgoeltoday at 1:25 PM

I have this peeve too, but tbh it feels like most people make this mistake, and usually it is easy enough to guess what was intended.

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compumiketoday at 1:30 PM

Just wait until you see "kW/h" :)

But I think plug-in / balcony solar will be pretty cool. And I think there's a path to inexpensive, larger, safer grid-tie inverters which never backfeed, but prioritize solar input first and make up the difference with grid power.

For example, I'm imagining a box that would plug in to the wall, have a DC input from solar panels, and a power strip for loads supporting up to, ideally, a full 15A normal US 120V circuit.

Currently this box exists in the form of battery power station units (Bluetti, Ecoflow, Anker etc). But I think there could be a much less expensive form that could exist without the battery.