Automate Dimming and Shutoff Routines to Lower Utility Bills

Learn how to automate your lighting to save energy and lower utility bills with Alexa and Node-RED.

Posted by Jared Stone on October 07, 2025 · 5 mins read

Automate Dimming and Shutoff Routines to Lower Utility Bills

In today’s world, saving energy and reducing utility bills aren’t just smart financial decisions; they also contribute to a more sustainable lifestyle. As a DIY smart home user, you can automate your lighting to help lower those pesky electricity costs. By using tools like Alexa and Node-RED, you can create routines that dim lights or turn them off entirely at specific times or based on your preferences. Let’s dive into how you can set up these routines step-by-step!

Step-by-Step Setup Guide

Step 1: Gather Your Gear

Before you start, ensure you have the following components:

  • An Amazon Echo device (to use Alexa).
  • Smart light bulbs that are compatible with Alexa.
  • A computer or Raspberry Pi with Node-RED installed.
  • The Node-RED Alexa integration for seamless communication between your devices.

Step 2: Set Up Smart Lighting

  1. Install Smart Bulbs: Install your smart light bulbs according to the manufacturer’s instructions. Most smart bulbs require you to connect them to your home Wi-Fi network.

  2. Link to Alexa: Enable the corresponding skill for your smart bulbs in the Alexa app. Follow the in-app instructions to connect your bulbs to your Amazon account.

Step 3: Create Node-RED Flows

  1. Launch Node-RED: Open your Node-RED editor in a web browser. If you haven’t installed Node-RED yet, you can find guides on Node-RED’s official site.

  2. Add Alexa Nodes: You will need to use the node-red-contrib-alexa-home-skill package to create flows that respond to Alexa voice commands. Search for and install this package in the Palette manager.

  3. Create a Flow for Dimming:

    • Drag an Alexa node onto your workspace.
    • Drag a function node to format the command appropriately for your smart bulb.
    • Connect to the smart bulb node to adjust brightness levels based on the command received from Alexa.

Here’s a simple example of how your Node-RED flow can look like: [Alexa Command] --> [Function that formats command] --> [Smart Bulb]

Step 4: Configure Routines in the Alexa App

  1. Create a New Routine: Open your Alexa app, go to “Routines,” and create a new routine.

  2. Set Triggers: Choose how you want to activate the routine (e.g., time of day, upon certain voice commands).

  3. Add Actions: Select the option “Custom” and input the command for dimming the lights (for example, “dim living room lights to 50%”).

Step 5: Test Your Setup

After saving all your configurations, test the commands. Try asking Alexa to dim the lights at different levels, and ensure the routines function as expected!

Helpful Tip Block

  • Use Energy Monitoring: Some smart bulbs have energy tracking features. Keep an eye on their performance to see how much energy you’re saving with your new routines.
  • Explore Node-RED Flow Examples: Dive deeper into your automation with Node-Red flow examples. You might find inspiration in other users’ flows that could simplify your setup!
  • Schedule for Sunset: Instead of a static time, set routines based on sunset. This optimizes your usage as it aligns with natural light changes.

Common Issues & Troubleshooting

  • Lights Not Responding: Ensure all devices are connected to the same Wi-Fi network. Restart your smart bulb and refresh the Alexa app to re-establish connections.

  • Node-RED Flow Not Triggering: Check your flow links and make sure that commands and outputs are correctly set up. Deployment is key—make sure you hit the deploy button after changes!

  • Inconsistent Responses From Alexa: Ensure your internet connection is stable and you’re using precise commands that Alexa recognizes. Sometimes, using different phrases can make a difference!

Final Thoughts

Automating dimming and shutoff routines can dramatically reduce your energy consumption and utility costs. With tools like Alexa and Node-RED, you’re empowered to create a smart home that adapts to your lifestyle. Not only does this make things more convenient, but it’s a big step toward being more energy-efficient.

As your journey into smart home automation continues, keep exploring new possibilities! Don’t hesitate to experiment with various routines and flows to find what works best for you. Happy automating, and enjoy those lower utility bills!