> For the complete documentation index, see [llms.txt](https://docs.ladybug.tools/dragonfly-primer/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.ladybug.tools/dragonfly-primer/components/3_energy/reopt_financial_parameters.md).

# REopt Financial Parameters

![](/files/-Mihra6Wtn3k7LqM724j)

![](/files/-Mihra6YlEvB8kvOS3nn) - [\[source code\]](https://github.com/ladybug-tools/dragonfly-grasshopper/blob/master/dragonfly_grasshopper/src//DF%20REopt%20Financial%20Parameters.py)

Customize the financial settings of a REopt analysis.

### Inputs

* **years**

An integer for the number of years over which cost will be optimized. (Default: 25).

* **escalation**

A number between 0 and 1 for the escalation rate over the analysis. (Default: 0.023).

* **tax**

A number between 0 and 1 for the rate at which the owner/host of the system is taxed. (Default: 0.26).

* **discount**

A number between 0 and 1 for the discount rate for the owner/host of the system. (Default: 0.083).

* **wind\_cost**

A number for the installation cost of wind power in US dollars per kW. (Default: 3013).

* **pv\_cost**

A number for the installation cost of photovoltaic power in US dollars per kW. (Default: 1600).

* **pv\_grnd\_cost**

A number for the installation cost of photovoltaic power in US dollars per kW. (Default: 2200).

* **storage\_cost**

A number for the installation cost of power storage in US dollars per kW. (Default: 840).

* **gener\_cost**

A number for the installation cost of generators in US dollars per kW. (Default: 500).

### Outputs

* **financial\_par**

A REoptParameter object that can be plugged into the 'DF Run REopt' component.