String Inverter

string inverter on solar panel array

String Inverter Definition:

A device used with solar arrays to convert the energy that is generated (Direct Current) to usable electricity for a home (Alternating Current). They are connected to multiple solar panels forcing the performance to be equal to the worst performing panel.

Choose and control your home energy

Go solar for $0 down
See if you qualify

  • 1
  • 2
  • 3
Do you own your home?
What is your average monthly electric bill?
By clicking above, I authorize Sunrun to call me and send pre-recorded messages and text messages to me about Sunrun products and services at the telephone number I entered above, using an autodialer, even if I am on a national or state “Do Not Call” list. Message and data rates may apply. Maximum 10 texts per month. Consent for calls & texts is optional. You can opt out anytime. You also agree to our Terms of Service.

Thanks so much! We'll call you shortly.

Sorry, we are not taking new customers in your area yet

 

Refer a Friend. Get $1000

Breaking Down String Inverters:

String inverters have the benefit of being a short-term cheaper solution due to the lower equipment need compared to microinverters. One string inverter can handle the energy produced from a row of 5-10 panels. Therefore you can save on the upfront equipment cost by buying one string inverter instead of 5-10 microinverters. However, the long-term costs associated with string inverters far outweigh the benefits.

A string inverter system can only perform as well as its lowest performing panel. So if a panel is experiencing obstruction from debris or shade, every other panel connected to that inverter will produce at the diminished capacity.

On top of all that, there is high-voltage electricity constantly on your roof. With the energy being converted at the end of the row of panels and not directly at the panel, up to 1,000 volts of DC electricity transferring across the roof. This can be a major hazard that can lead to arc-faulting and fire.

Sunrun

Recommended Articles

Where's Sunrun

Sunrun has hundreds of thousands customers powering their homes with renewable energy each month. Locate solar services in your state.

Plans & Services

Find the best home solar plan within your budget today. You can go solar and save for little to $0 down with Sunrun.

Brightbox Battery Storage

Brightbox™ Battery makes storing and managing clean affordable solar energy simple and easy.

Solar Panels

Solar power is yours for the making. Sunrun creates home solar panel systems that optimize for efficiency, durability, service, and value.

Sunrun News

From solar news to smart home energy saving tips, learn how solar is helping thousands save on rising energy costs.

Solar Education

Learn how to go solar simply with Sunrun’s solar education center, including articles, videos & FAQs.

Cost of Solar

As electricity rates are rising the cost of solar panels have never been lower. Switch to home solar and save with Sunrun.

Utilities

Find out more on how to lower your electric bill, how to read your electric bill once you go solar, and which green initiatives your utility is focused on today.