> For the complete documentation index, see [llms.txt](https://enercalc.com/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://enercalc.com/docs/installation-activation/installation/install.md).

# Install ENERCALC

How to install ENERCALC on Windows or Mac, and how to run the web version with no install at all.

## Choose how you run ENERCALC

<table data-view="cards"><thead><tr><th></th><th></th><th></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td><h3><i class="fa-windows" style="color:$primary;">:windows:</i></h3></td><td><strong>Windows</strong></td><td>Install on each Windows computer that runs the software</td><td><a href="#windows">#windows</a></td></tr><tr><td><h3><i class="fa-apple" style="color:$primary;">:apple:</i></h3></td><td><strong>Mac</strong></td><td>Install on each Apple Silicon Mac that runs the software</td><td><a href="#mac">#mac</a></td></tr><tr><td><h3><i class="fa-cloud" style="color:$primary;">:cloud:</i></h3></td><td><strong>Web version</strong></td><td>Run ENERCALC in your browser with nothing to install</td><td><a href="https://enercalc.app/">https://enercalc.app/</a></td></tr></tbody></table>

{% hint style="info" %}
**NOTE:** You don't need to install ENERCALC to access the web version.
{% endhint %}

## Install on your computer

Install ENERCALC locally on every computer that runs the software. Don't install it on one computer and run it from another computer through a shortcut. The software won't run correctly in that configuration.

You can install ENERCALC on any computer where you might use it.

{% tabs %}
{% tab title="Windows" %}

### Check the system requirements

ENERCALC for Windows requires Windows 10 or later.

### Download the installer

<a href="https://install.enercalc.app/win/ENERCALC-Setup.exe" class="button primary" data-icon="download">Download the ENERCALC installer for Windows</a>

The link always provides the most recent software build. Download a new installer when you install the software, because builds are updated regularly.

### Install the software

Start the downloaded installer, then follow these steps.

{% stepper %}
{% step %}

#### Accept the license agreement

Setup opens on **License Agreement**. Press **Page Down** to read the rest of the agreement, then select **I Agree**. You have to accept the agreement to install ENERCALC.

<figure><img src="https://3955293234-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fo0Hz1rmQ42N26pw3zzDH%2Fuploads%2Fgit-blob-b57b8231e476bf49188028630c8c59752056cfdb%2Finstall-win-license-agreement.png?alt=media" alt="The ENERCALC Setup License Agreement screen with the end-user license agreement and an I Agree button"><figcaption><p>Select I Agree to continue.</p></figcaption></figure>
{% endstep %}

{% step %}

#### Choose the installation options

Next, **Choose Installation Options** asks who the application is for. Select **Anyone who uses this computer (all users)** or **Only for me**, then select **Next**.

Installing for all users needs administrator permission, so Windows asks you to approve Setup and the License Agreement appears a second time. Accept it again to continue.

If ENERCALC is already installed for your account, this screen says so and Setup reinstalls or upgrades it in place.

<figure><img src="https://3955293234-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fo0Hz1rmQ42N26pw3zzDH%2Fuploads%2Fgit-blob-8a0a1188015f6fccf4ba7464caf7080e2a49cb3a%2Finstall-win-install-options.png?alt=media" alt="The Choose Installation Options screen with radio buttons for all users or only the current user"><figcaption><p>Choose whether to install for all users or only yourself.</p></figcaption></figure>
{% endstep %}

{% step %}

#### Choose the install location

Next, **Choose Install Location** shows the **Destination Folder**. The default is your per-user program folder, `C:\Users\<username>\AppData\Local\Programs\ENERCALC`, and we recommend that you keep it. To install somewhere else, select **Browse**. The screen also lists the space required and the space available.

{% hint style="warning" %}
**WARNING:** Install on the local computer. A remote drive can prevent ENERCALC from running correctly.
{% endhint %}

<figure><img src="https://3955293234-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fo0Hz1rmQ42N26pw3zzDH%2Fuploads%2Fgit-blob-a9dbcbc2917bc003159e6ffe7ad574e501abb88e%2Finstall-win-program-location.png?alt=media" alt="The Choose Install Location screen showing the destination folder, a Browse button, and the space required"><figcaption><p>Keep the default destination folder, or select Browse to change it.</p></figcaption></figure>

Select **Install**.
{% endstep %}

{% step %}

#### Finish installation

Setup copies the program files, then shows **Completing ENERCALC Setup**. Leave **Run ENERCALC** selected to start the app straight away, then select **Finish**.

<figure><img src="https://3955293234-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fo0Hz1rmQ42N26pw3zzDH%2Fuploads%2Fgit-blob-fb713aeb30dbf8c63742c7e3db4148663e16b02b%2Finstall-win-complete.png?alt=media" alt="The Completing ENERCALC Setup screen with a Run ENERCALC checkbox and a Finish button"><figcaption><p>Select Finish to close Setup.</p></figcaption></figure>
{% endstep %}
{% endstepper %}
{% endtab %}

{% tab title="Mac" %}

### Check the system requirements

ENERCALC for Mac requires a Mac with Apple Silicon.

### Download the installer

<a href="https://install.enercalc.app/mac/ENERCALC-mac-arm64.dmg" class="button primary" data-icon="download">Download the ENERCALC installer for Mac</a>

The link always provides the most recent software build. Download a new disk image when you install the software, because builds are updated regularly.

### Install the software

Open the downloaded disk image, then follow these steps.

{% stepper %}
{% step %}

#### Open the disk image

Open `ENERCALC-mac-arm64.dmg` from your Downloads folder. A window opens showing the ENERCALC app next to your Applications folder.

<figure><img src="https://3955293234-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fo0Hz1rmQ42N26pw3zzDH%2Fuploads%2Fgit-blob-549c2c383698e01336f242b96a6955a2c6f06204%2Finstall-mac-drag.png?alt=media" alt="The mounted ENERCALC disk image showing the app icon, an arrow, and a shortcut to the Applications folder"><figcaption><p>Drag ENERCALC into Applications.</p></figcaption></figure>
{% endstep %}

{% step %}

#### Drag ENERCALC into Applications

Drag the ENERCALC icon onto the **Applications** folder. macOS copies the app, which may take a moment.
{% endstep %}

{% step %}

#### Run ENERCALC

Open **Applications** and launch **ENERCALC**.
{% endstep %}
{% endstepper %}
{% endtab %}
{% endtabs %}

Installation is complete, and you can now proceed to [sign in to ENERCALC](/docs/installation-activation/account/sign-in.md).

## Run the web version instead

You don't have to install anything. ENERCALC also runs in a browser, so you can sign in and work without an installer, without a local program folder, and without reserving a seat on a specific computer.

<a href="https://enercalc.app/" class="button primary" data-icon="cloud">Open the ENERCALC web version</a>

To get started, see [Sign In](/docs/installation-activation/account/sign-in.md).


---

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