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FAQ

Financial​

How much do solar panels cost?

For a typical system:

  • 7 - 9 kW
  • 1 - 2 batteries

Costs range:

  • $19,000 - $28,000
  • Financing is about $2,000 down and $180/mo - $240/mo for 10 years
Is it better to buy or lease solar panels?

Leasing:

  • You don't own them.
  • They won't add property value. _ They don't qualify for any rebates.

Buying:

  • Is a better long-term investment.
  • And buying a battery is better for many reasons.
Are there tax rebates for buying solar panels?

Yes, each state offers different incentives.

Note: Leasing doesn't qualify for any rebates.

How much do solar panels increase home value?
How long until solar panels pay for themselves?

6 - 9 years, depending on how many batteries you have.

Will solar panels increase your property taxes?
Who are the best solar vendors?

Logistics​

Do you need permits to install solar panels?

Yes, and good installation companies do it for you.

Does Homeowners Insurance cover solar panels?

Yes, it's permanent and considered part of the home.

Panels​

How many panels do I need?

About 16 - 24 panels (7 - 12 kW), depending on your usage and goals.

Where are the Tesla panels made?

USA.

How long do solar panels last? Will production change over time?
  • Production varies according to the season.
  • Solar panel systems degrade in efficiency by ~0.5% / year.
  • Systems are guaranteed to be 90% efficient at year 20.
  • Your system will last 50+ years.
How often should panels be cleaned? How to clean them?

6 - 12 months, only if it doesn't rain within 6 months:

  • Rinse off the panels with a water hose from ground level.
  • Rinse only the glass cover, not the wiring or underneath area.
  • Rinse panels only when overcast or the sun is low.
What to do about snow or ice on solar panels?
  • Never shovel or use a hard-edged tool.
  • The special tempered glass is very good at shedding snow on its own.

Batteries​

Should I get a battery for my solar panels?

Yes, absolutely, as many as you can afford.

Note: Without a battery, solar panels don't operate during a power outage for safety reasons.

Roof​

Is my roof ready for solar panels?
  • If it's old or damaged, you'll need to get it repaired.
  • If it's older than 10 years, you'll need to replace it because panels are guaranteed for 20 years.
Which types of roofs can support solar panels?

Solar panels can be installed on almost any roof type, except wood or slate.

Which roof direction should solar panels face?
  • South is best for morning and afternoon sun.
  • West is better than East if you have morning fog.
  • For details, enter your address in Google Project Sunroof.