
What Happens to Solar Panels When It’s Cloudy or Raining?
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Think solar panels stop working when it's not sunny? That's just not true!
This myth keeps a lot of people from switching to solar power.
When clouds cover the sky or rain starts falling, it makes sense to wonder if your panels are still doing anything useful.
Here's the truth: they're still working hard for you! Solar panels are way more capable than most people think.
Let's clear up this confusion and show you exactly what happens when it gets cloudy or rainy outside.
How Solar Panels Work on Cloudy Days?

Solar panels have tiny cells that turn sunlight into electricity.
These cells are pretty smart – they don't need bright, blazing sun to work. They can grab any light that comes their way and turn it into power for your home.
When clouds show up, they're like a dimmer switch for sunlight. The light gets softer, but it's still there. Your solar panels can feel this difference, but they keep working anyway.
This softer light isn't as strong, but your panels can still use it.
How much depends on how thick the clouds are.
Today's solar panels are way better at working even when it's not super bright outside.
This makes them much better than the old panels from years ago.
Look at Germany: They use more solar energy than almost anyone else, even though it's cloudy there a lot. If solar panels work great there, they'll work great for you too.
Cloudy weather might slow your panels down, but they'll still cut your electric bill.
Rainy Days and Solar Panels: More Than Just a Downside
Rain might seem like bad news for your solar panels, but there's more to the story.
Yes, rainy weather does cut down on electricity production because less sunlight reaches your panels.
Just like cloudy days, you'll see lower output during storms.
But here's the surprise - rain actually helps your panels:
Rain washes away dust, pollen, bird droppings, and other grime that builds up over time.
Clean panels soak up more sunlight once the weather clears, boosting your solar panel performance.
Natural cleaning means you won't need to scrub your panels as often, keeping solar panel maintenance simple and cheap.
Most solar panels come with weather-resistant features that protect them for decades.
So next time it starts pouring, remember that your panels are getting a helpful wash that will make them work even better tomorrow.
The Power of Indirect or Diffused Sunlight
Diffused sunlight is just light that gets spread around in the sky. Even when you can't see the sun, this light is still there, and your solar panels can use it to make power.
When clouds or rain get in the way, they don't block all the light.
They just spread it around instead. Your panels can grab different types of light. This helps them keep making energy, even when it's cloudy.
Your panels might make less power, but they never stop working completely.
New technology makes this even better. Some panels can catch light from both the top and bottom.
They grab light that bounces off your roof or the ground. Some systems even move to follow whatever light they can find all day long.
Cloudy skies might make things dimmer, but they can't shut off your solar power.
Energy Output and Storage Considerations in Varied Weather
Knowing how your solar panels work in different weather helps you plan better.
On sunny days, your panels work at full power and make the most electricity. When it gets cloudy, they make about 25-40% of their normal power.
On rainy days, they make even less, only 10-25% of what they'd make on a sunny day.
Here's how to deal with these changes:
Save extra power from sunny days to use when it's cloudy or raining.
Get enough panels and batteries to cover your needs during mixed weather.
Plan your system knowing some days will produce less power.
Solar batteries are great for places with lots of clouds.
They store all that extra power when the sun is bright and save it for when you need it most. This keeps your lights on and your bills low, no matter what the weather does.
Net metering is another smart trick. When your panels make more power than you use, the extra goes back to the power company.
You get credits that make up for those days when your panels don't make as much power.
Is Solar Worth It in Places Like San Antonio with Mixed Weather?

Worried about San Antonio's changing weather ruining your solar plans? Don't be.
Your city gets tons of sunshine all year long, which makes solar a great choice for your home.
When it gets cloudy, your panels still work. They just make a bit less power.
Your solar panel performance keeps going, no matter what the sky looks like.
San Antonio's mix of sunny and cloudy days is actually perfect for solar.
With the right setup and maybe some battery backup, solar works great here all year.
Over 12 months, you'll make plenty of clean energy to power your house and save serious money on electricity.
A few cloudy days here and there won't change that.
Wrapping Up…
Ready to slash your electric bills and power your home with clean energy? Stephens Solar Solutions makes going solar easy.
We handle the setup, use great panels, and treat you right. Our team cares about what you need.
Make the smart choice. Get in touch with us!