Guides
How to download your Octopus smart meter data
Download your Octopus electricity CSV and use it to estimate your Agile usage pattern.
Short answer
Octopus lets you download half-hourly smart meter consumption from your account dashboard. In OffPeakly, you can upload that CSV locally to estimate your average daily usage and how much electricity falls overnight, during the day, and during the evening peak.
If you want live context while reading, check the dashboard, test a real run in the appliance timer, set a trigger in alerts, or compare the same day across regions.
Where to find it
Sign in to your Octopus account, open Energy, then My Energy. Look for the smart meter data download area, often labelled with Octopus’s “Get your geek on” wording. Select Electricity as the fuel, choose a start date, and download your smart data.
What the CSV contains
The file should contain half-hourly electricity consumption with columns for Consumption (kWh), Start, and End. Those rows are useful because they show not just how much electricity you use, but when you use it.
How OffPeakly uses it
OffPeakly reads the CSV in your browser and calculates average kWh per day. It also estimates how much usage falls overnight, during the day, and during the evening peak. Those values can then prefill the Compare page.
What it does not do
CSV import is not a full bill check. It does not connect to your Octopus account, verify your tariff, or model every supplier rule. It simply gives the comparison tool a better usage estimate than a rough guess.
Privacy and safety
The file is processed locally in your browser. The raw CSV is not uploaded or saved. Only the calculated summary is kept in your browser if you choose to use it.
Example
Someone using 9.6kWh per day with 40% overnight usage may see Go or Intelligent Go compare differently from someone using the same 9.6kWh mostly during the evening peak.
What to watch out for
Use enough days to represent normal usage. A short CSV from a holiday, heatwave, or unusual week can skew the comparison.
Related tool
Use the practical view next
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Reminder
These guides are practical and estimate-focused. They are not personalised tariff advice, and they do not replace a full bill comparison.