Comparison of Central and String Inverters

Comparison of Central and String Inverters

System designers have more options today than ever before when architecting PV systems.
No decision has more impact on the cost and performance than the choice of inverters as this dictates design constraints for much of the balance of system.

Read the article to learn more about the relative merits of central and string inverters in a typical system in North America.

 


 

In this quantitative comparison, five key metrics over the life of a system are analyzed:

  1. Basic performance requirements of utility scale projects
  2. CAPEX (labor and materials)
  3. System operating efficiency
  4. Inverter service life
  5. True cost of service