# Consumption

## Purpose of This Section <a href="#purpose-of-this-section" id="purpose-of-this-section"></a>

The Consumption page is the foundation of all feasibility and financial outputs. Every calculation, such as self-consumption, grid import and export, savings, and payback period, depends on the accuracy of the data defined here.

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

In the consumption page, you can:

* Define daily, monthly, or annual electricity consumption values
* Choose from predefined consumption profiles or create custom usage patterns
* Upload detailed hourly consumption data using an Excel file
* Choose applicable electricity prices and regulations based on the project location for **On-Grid** or **Zero Injection** projects
* Determine preset appliances or add new ones for **Off-Grid** projects
* Select the electricity purchase price, the electricity export price, and the electricity offset prices
* Apply VAT and inflation rate
* Choose the applicable project currency
* Synchronize consumption settings across multiple project designs

## Consumption Page Structure <a href="#consumption-page-structure" id="consumption-page-structure"></a>

This page contains three main tabs:

### Energy Consumption <a href="#energy-consumption" id="energy-consumption"></a>

Defines how much electricity the facility consumes and how consumption is distributed throughout the day and across months.

Here, you can:

* Enter monthly or annual consumption values
* Select or customize a consumption profile
* Control daily and seasonal usage patterns

This data is used to calculate self-consumption, grid usage, and energy balance.

### Electricity Prices and Regulation (On-Grid / Zero Injection Projects) <a href="#electricity-prices-and-regulation-on-grid-zero-injection-projects" id="electricity-prices-and-regulation-on-grid-zero-injection-projects"></a>

Defines how electricity is priced and regulated for **on-grid** or **zero injection** projects.

Here, you can configure:

* Electricity purchase, export, or offset prices
* VAT and other applicable rates
* Currency
* Country-specific regulatory rules or global regulatory rules

These settings ensure that financial calculations comply with local market rules.

### Appliances (Off-Grid Projects) <a href="#appliances-off-grid-projects" id="appliances-off-grid-projects"></a>

Defines electricity usage for **off-grid** projects based on electrical appliances.

Here, you can:

* Add electrical appliances
* Define their count, usage duration, and nominal power
* Automatically calculate total energy consumption

{% hint style="info" %}
This tab is used only for off-grid system designs.
{% endhint %}

Together, these tabs allow solarVis to accurately calculate self-consumption, the electricity export amounts, savings, payback period, and all related financial outputs.

{% hint style="info" %}
This page uses auto-save, so any changes you make are saved automatically.
{% endhint %}

## Upload Consumption Profile <a href="#upload-consumption-profile" id="upload-consumption-profile"></a>

A project in solarVis can use either manually entered consumption values or a detailed hourly consumption profile.

By using the Upload Consumption Profile action, you can upload an hourly consumption file and apply it to the design. This allows solarVis to use real consumption data instead of estimated values, improving the accuracy of feasibility and financial calculations.

The uploaded profile is used directly in simulations, and the system automatically reflects the derived daily and monthly values on this page.

## Sync Current Changes to All Designs <a href="#sync-current-changes-to-all-designs" id="sync-current-changes-to-all-designs"></a>

A project in solarVis can include multiple design versions.

By clicking **Sync Current Changes to All Designs**, you can apply the current consumption and regulation settings to all design alternatives within the project.

This ensures that all designs use the same consumption baseline, making it easier to compare different system layouts and equipment selections.

***

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

* [Energy Consumption Page](/project-design/create-a-project/consumption/energy-consumption.md)
* [Electricity Prices and Regulation (On-Grid / Zero Injection Projects) Page](/project-design/create-a-project/consumption/electricity-prices-and-regulation-on-grid-zero-injection-projects.md)
* [Appliances (Off-Grid Projects) Page](/project-design/create-a-project/consumption/appliances-off-grid-projects.md)

If you have any questions about the Consumption page, feel free to [**get in touch with us!**](https://www.solarvis.co/en/company/contact)


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