Solar 101 – How Solar Works

When the sun shines, electricity flows from the panels to the inverter through wires. The inverter converts DC electricity into AC, powering your home. Afterward, the electricity travels through a dedicated wire into your home’s electrical panel. Your solar panels then send any extra electricity they produce back to the utility company’s grid through the power lines.

Illustration of a modern home with rooftop solar panels by Castaways Energy, highlighting sustainable energy solutions.

Did You Know?

Solar panels are the most obvious part of the system. Every day, they sit on your roof and collect the limitless energy the sun provides.

The inverter transforms the solar panels’ collected energy into usable electricity, which powers your home. Inverters can be a separate piece (as shown here), or they can be micro-inverters, which are part of each individual solar panel.

The meter is what measures your electricity usage. When using solar energy, your meter will frequently run “backwards” as you sell your excess electricity back to the local utility company.

The power lines, along with the entire extensive system that supplies electricity to your region, are included. Your home is still connected to the grid for times when it needs electricity that you are not currently producing (mostly at night).

Is My House A Good Candidate For Solar?

Aerial view of residential home with solar panels installed by Castaways Energy, showcasing effective solar energy solutions.

There are 3 main factors that determine whether your home is a good candidate for solar energy in Florida:

  • Does it get a good amount of direct sunlight (not overly obstructed by shade)?
  • What is the orientation of the roof (technically “Azimuth,” which means North, South, East, and West)?
  • Roof condition, shape, and size

Direct Sunlight

For solar panels to function effectively, they require direct sunlight. You’re probably a great candidate for solar energy if the roof of your home receives plenty of sunlight throughout the day. However, even if your roof is shaded or obstructed, don’t worry, as there are solutions to overcome these challenges.

  • Power Optimizers or Microinverters enhance system efficiency by enabling individual panels to operate independently. This ensures maximum electricity production from each panel, even when shaded. Consequently, even when one panel receives shade, the system maintains its normal operation. This capability is especially useful in mitigating the impact of tall trees in neighboring yards and ensuring consistent solar power generation.
Comparison of residential rooftop solar panel installations: Castaways Energy vs. other brands, highlighting efficiency and sustainability.
Aerial view of large residential property with solar panels by Castaways Energy, highlighting renewable energy solutions in a lush green environment.

Orientation Of Your Roof

For solar energy systems to be most efficient in Florida, it’s optimal for solar panels to face south. While east- and west-facing roofs may not receive as much direct sunlight as those facing south, they often still capture plenty of sunlight to generate sufficient electricity for your home’s needs. In Florida, a home with panels facing east or west could achieve about 80% of the efficiency of a house with south-facing panels. So, even if the alignment isn’t “perfect,” adding a few extra panels may be all that’s necessary to achieve desired results, with substantial savings still within reach.

Roof Condition, Shape, and Size

Once your solar system is installed, it can efficiently operate for over 25 years. Therefore, it’s essential to ensure your roof is in excellent condition before installing solar panels. If your roof is aging or in poor shape, replacing it before adding solar might be necessary. However, there’s good news! Including roof replacement as part of the solar project can help offset costs, essentially providing you with a new roof along with solar benefits.

Roof shapes vary widely across different house styles. While a simple rectangle-shaped “gable” roof is ideal for solar in Florida, other roof shapes, including those with dormers or valleys, can also accommodate solar panels. It may require a bit more effort to configure or fit the right number of panels, but it’s entirely feasible to make solar work for various roof styles.

At Castaways Energy, our commitment lies in maximizing opportunities for our customers. If another solar company has declared your house unsuitable for solar, allow us to examine the situation. We often find solutions in situations where others couldn’t, ensuring you can enjoy the benefits of solar energy.

Infographic of custom solar solutions for various roof types, including flat, pitched, canopy, shingle, asphalt, slate, and metal roofs.
Find Out If Solar Is Right For You. Pick an assessment type & enter your name
Icon
Quick
Icon
More thorough

Thank You !

What best describes you? (please choose one)

I want solar for my primary residence
I want solar for my business

Hi ,
Besides saving money on your utility bill, what else motivates you to go solar?
(please choose one)

Icon
Be more Green
Icon
Use more Power
Guilt Free
(i.e. AC/Devices)
Icon
Fear of Outages
(i.e. Grid Down)
Icon
Cash in on 'Going
Solar' Incentives

What best describes you?

Icon
I’m retired or dreaming of retirement
Icon
I just bought my first home
Icon
I’m ready to start my career/family
Icon
My kids are in college

Fill in the blank. "When picking a solar partner, getting the best            is most important to me."
(please choose one)

Icon
Warranty
Icon
Value
Icon
Technology
Icon
Company

I'm interested in (select one)...

Icon
Solar only
Icon Solar
Icon + Storage
Icon Solar
Icon + EV
IconSolar
Icon+ Storage
Icon+ EV

What best describes you?

Icon
I have an EV
Icon
I want an EV

Thank You !
We're building your solar persona.

Now, it's time to calculate the perfect system size for your house and find out how much you can save when you go solar.

Solar Wizard

is calculating your system size

Here are your results!
Panel


Environmental Impact ( years)
Icon

metric tons

Icon

car miles driven

Icon

Number of Trees Planted


# of Panels:

System size:

Battery:

How do you plan on aquiring your system?

# of Panels:

System size:

Battery:

Environmental Impact
( years)
Icon

metric tons

Icon

car miles driven

Icon

Number of Trees Planted


Wizard Logo

Thank you for using Solar Wizard. Data submitted successfully.

Thank You

Our representative will contact you soon.

Step 1/

Thank You !

What best describes you? (please choose one)

I want solar for my primary residence
I want solar for my business

I'm interested in (select one)...

Icon
Solar only
Icon Solar
Icon + Storage
Icon Solar
Icon + EV
IconSolar
Icon+ Storage
Icon+ EV

What best describes you?

Icon
I have an EV
Icon
I want an EV

Thank You !
We're building your solar persona.

Now, it's time to calculate the perfect system size for your house and find out how much you can save when you go solar.

Solar Wizard

is calculating your system size

Here are your results!
Panel


Environmental Impact ( years)
Icon

metric tons

Icon

car miles driven

Icon

Number of Trees Planted


# of Panels:

System size:

Battery:

How do you plan on aquiring your system?

# of Panels:

System size:

Battery:

Environmental Impact
( years)
Icon

metric tons

Icon

car miles driven

Icon

Number of Trees Planted


Wizard Logo

Thank you for using Solar Wizard. Data submitted successfully.

Thank You

Our representative will contact you soon.

Step 1/

How much will solar cost you?
Find out. It’s FREE!