---
title: Understanding Energy & Cost Monitoring in the Lightwave App
description: "Compatible devices (Smart Series): Energy Monitoring To view the amount of energy being used, long press on the icon of the device you want to view. From the device page, you can view the current co"
---
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# Understanding Energy & Cost Monitoring in the Lightwave App
## This article explains how to use the energy and cost monitoring features available on Lightwave Smart Series devices, including how to access usage data, interpret graphs, and set electricity tariffs.
### ⚡ **Energy Monitoring Compatibility**
**All Lightwave Smart Series devices support energy monitoring.**
> 💡 *Note: Connect Series (1st generation) devices do **not** support energy monitoring.*
---
### 📊 **Viewing Energy Usage**
To check how much energy a device is consuming:
**1️⃣ Long-press the device tile** in the Lightwave app to open the Device Page
2️⃣ View the following:
- - **Current consumption** – shows real-time energy use
- **Total consumption** – shows cumulative energy use over a selected period
#### 🗓️ **Adjusting the Date Range**
To change the reporting period for total consumption:
- Go to **Device Page \> Settings \> Energy**
- Select your preferred date range
#### 📈 **Accessing Energy Graphs**
- Rotate your phone/tablet into **landscape mode** while on the Device Page
- The first graph displays a **daily energy summary**
- Tap any **blue bar** to see a detailed breakdown of usage throughout that day
---
### 💷 **Cost Monitoring Setup**
To estimate energy costs:
1. Open the app and go to **Settings \> Location Management \> Electricity Tariff**
2. Enter your **electricity rate** (e.g., £0.30 per kWh)
The app will then estimate the cost of energy usage per device based on consumption data.
> ⚠️ *Cost estimates are representational only and may not match your utility bill.*
---
### ⏳ **Historical Data Access**
- **All users** can view up to **1 week** of historical energy usage
- **Lightwave PLUS members** can access **13 months** of historical data
---
### 📉 **Accuracy of Energy Readings**
- In **local mode**, updates occur every **15 seconds**
- When using cloud access:
- Data may appear slightly delayed due to system rate limits
- **Live readings** are accurate within **10%**
- **Total usage** is accurate within **0.1 kWh**
"Yesterday’s usage" reflects the highest recorded value sent to the server for that period. Slight discrepancies may occur but remain minimal.
---
### 📱 **App Experience Notes**
- Graphs and icons may appear differently on **iOS** vs. **Android**
- Some app visuals may vary slightly depending on your device
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