INSTALLED SYSTEM COST CALCULATOR

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INPUTS

 

OUTPUTS

System and modules

   
System power kWp   Module power Wp  
Module efficiency %   Number of modules    
Module area m2/mod   System area m2  

Prices and costs

    $ $/Wp  
PV modules $/mod   PV modules 1,300 0.226 13.7%
Module-scaling BOS $/mod   Module-scaling BOS 800 0.139 8.4%
Area-scaling BOS $/m2   Area-scaling BOS 3,040 0.528 32.0%
Power-scaling BOS $/Wp   Power-scaling BOS 864 0.150 9.1%
Fixed BOS $   Fixed BOS 3,500 0.608 36.8%
  Installed system 9,504 1.650 100.0%
 

DEPENDENCE OF INSTALLED COSTS ON MODULE EFFICIENCY

For a system area of 32 m2
with a module price that increases with efficiency

Sweep efficiency from % to % and plot installed system cost for a

(system power increases as efficiency increases)

α = β = See About tab for equation.

Comments? Bugs? Errors? Compliments?

Welcome to the installed system cost calculator

This calculator calculates the cost to install a PV system based on the price, efficiency and area of its PV modules, as well as the balance of systems (BOS) costs.

Warning

BOS costs vary significantly from one application to another, and from one country to another. They can also vary rapidly over time. The default costs employed by this calculator, and the costs contained in the case studies listed within, should not be assumed to represent the BOS costs of any given PV installation.

The assumptions used in the calculations are described on the ''About'' page.

Disclaimer

Neither PV Lighthouse nor any person related to the compilation of this calculator make any warranty, expressed or implied, or assume any legal liability or responsibility for the accuracy, completeness or usefulness of any information disclosed or rendered by this calculator.

Version 1.2, 10-August-2020

New in this version:

  • Option to include the dependence of module price on module efficiency.
  • Option to hold either system power or system area constant when sweeping module efficiency.
  • An input for module-scaling BOS costs.
  • Updated defaults to represent a 2020 residential rooftop system.

Import PVL File

 

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