# Cost Configuration Test

## Purpose of This Page <a href="#purpose-of-this-page" id="purpose-of-this-page"></a>

The Cost Configuration Test page acts as a **controlled simulation environment** for your active Cost Configuration settings.

Instead of testing calculations through the live Lead Generator, this page allows you to:

* Validate pricing logic safely
* Check how item quantities are calculated
* Confirm profit margin
* Ensure total system cost accuracy
* Detect configuration errors before publishing

This prevents incorrect pricing, margin loss, or unrealistic pre-feasibility results from appearing in the customer-facing module.

## What You Can Do Here <a href="#what-you-can-do-here" id="what-you-can-do-here"></a>

The steps below can be performed on this page:

* Enter a **test DC system size (kWp)**
* Adjust the **DC/AC ratio** to test the inverter sizing logic

{% hint style="info" %}
In the project, the DC/AC ratio is calculated automatically by dividing the total panel power (DC) by the total inverter power (AC).
{% endhint %}

* Enable or disable **battery** and define **battery capacity (kWh)**
* Click **Apply** to calculate the total cost of the project.
* Review **profit margin, VAT**
* Confirm **total project cost**

This allows you to fully stress-test your pricing structure under different system scenarios.

## How It Works <a href="#how-it-works" id="how-it-works"></a>

The test engine applies the **currently active Cost Configuration settings** to the technical inputs defined at the top of the page.

### DC Power (kWp) <a href="#dc-power-kwp" id="dc-power-kwp"></a>

The entered DC power determines:

* Total installed panel capacity

{% hint style="info" %}
Panel quantity is calculated automatically according to:

> DC System Size ÷ Selected Panel Power

The result is rounded to the nearest whole number
{% endhint %}

### DC/AC Ratio <a href="#dc-ac-ratio" id="dc-ac-ratio"></a>

The DC/AC ratio determines inverter sizing.

{% hint style="info" %}
DC/AC Ratio is calculated by dividing total installed panel power (DC power) by total inverter power (AC power).
{% endhint %}

Based on this result, the system selects or calculates:

* Required inverter size

This allows you to verify whether your inverter logic produces correct and cost-effective sizing.

### Battery Simulation (Optional) <a href="#battery-simulation-optional" id="battery-simulation-optional"></a>

When battery simulation is enabled:

* You enter the desired **battery capacity (kWh)**
* The system calculates the required battery unit quantity
* Battery cost is added to the total system price

### Cost Application Logic <a href="#cost-application-logic" id="cost-application-logic"></a>

After clicking **Apply**, the system:

* Calculates panel quantity and sizes the inverter according to the DC/AC ratio
* Adds battery units (if enabled)
* Applies all defined cost rules:
  * Per-watt costs (e.g., mounting, custom cost, etc.)
  * Fixed component prices
  * Shipping cost
  * Additional predefined cost items
* Applies the defined **profit margin** and **VAT**
* Calculates the **final total price**

All values are calculated instantly and displayed in the **Items Table** and **Financial Summary** section.

## Simulation Results <a href="#simulation-results" id="simulation-results"></a>

Displays the calculated system analysis and total project cost based on the applied configuration parameters.

### Items Table <a href="#items-table" id="items-table"></a>

The Items Table provides a detailed analysis of all calculated cost components.

For each item, the table displays:

* Category
* Selected item
* Unit type (per unit / per watt / fixed)
* Unit price
* Calculated quantity
* Total price (excl. VAT)

This allows you to identify misconfigured unit prices, incorrect quantities, or unexpected totals.

### Financial Summary <a href="#financial-summary" id="financial-summary"></a>

At the bottom of the page, the Financial Summary provides a complete project overview:

* Total Project Cost (incl. VAT and Profit Margin)
* Project Cost per kWp (excl. VAT)

{% hint style="info" %}
The items in the table and financial summary cannot be modified, as this is a simulation. You should update the **Cost Configuration** settings.
{% endhint %}

## Why This Page Is Important <a href="#why-this-page-is-important" id="why-this-page-is-important"></a>

The Cost Configuration Test page helps you:

* Prevent underpricing or overpricing
* Detect configuration mistakes early
* Maintain consistency in the live version

By testing multiple scenarios (small systems, large systems, high DC/AC ratios, battery-enabled projects), you can confidently publish your Cost Configuration knowing that all calculations behave as expected.

***

## Related Pages <a href="#related-pages" id="related-pages"></a>

* [Cost Configuration](/solarvis-modules/solarvis-lead-generator/cost-configuration.md)

[Feel free to contact us](https://www.solarvis.co/en/company/contact) if you need further assistance.


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