There is no need to physically attach solar panels to your car’s roof to determine if it will charge your car. Of course it will while it’s in the sun. Let’s do some math:
If:
The area of this Tesla’s roof is 2 square meters (being generous),
The efficiency of the panels is 25%,
The capacity factor of solar (depending on your location) is 20%,
The sun’s irradiance is 1000 watts per square meter,
The Tesla’s battery capacity is 100 KWhrs,
And we neglect the increased weight and drag of the array,
We’re talking about 100 hours, more than 4 days.
Doesn’t sound like a bargain, especially considering that if you overbuild the solar array on your roof and charge your car in your garage, you’ve achieved the same goal at far less expense and inconvenience.
Renewable Energy
Texas Stupidity
What a completely asinine thing for anyone to say–even Ted Cruz.
It was the expressed will of the people of Texas to remove criminal Republicans. Trump supported Paxton, but he lost by more than 12 points! Abbott lost by more than 7.
Malaria is more popular in Texas now than Trump.
Renewable Energy
Humanity’s Insanity
This guy is obviously correct, but some Americans believe that anything that impedes their path towards riches is unacceptable, and that environmental regulations are tantamount to communism.
Renewable Energy
1,000-Turbine Study Reveals Which Parts Fail Most
Weather Guard Lightning Tech

1,000-Turbine Study Reveals Which Parts Fail Most
A 1,000-turbine European reliability study finds pitch systems, controllers and power converters fail most often. Plus why failures climb in year nine and an offshore farm blind to lightning.
The Uptime Wind Energy Podcast is brought to you by Weather Guard Lightning Tech, creators of the StrikeTape Ultra LPS retrofit. Subscribe to Uptime’s Substack newsletter. And check out Rosemary’s “Engineering with Rosie” Youtube channel. Have a question we can answer on the show? Email us!
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