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Cosy Octopus 12M Fixed March 2026 v1

Time of Use Fixed All 14 UK regions

Cosy Octopus 12M Fixed March 2026 v1 is a time of use electricity tariff from Octopus. Rates and standing charges shown below are refreshed daily; last updated .

Rates in your area

DNO: SP Energy Networks
Standing charge
59.82p /day
Unit rate
Off-peak 12.99p / Peak 46.95p
Time-of-use bands
Band Time Rate
Standard 00:00 - 04:00 30.13p
Off-Peak 04:00 - 07:00 12.99p
Standard 07:00 - 13:00 30.13p
Off-Peak 13:00 - 16:00 12.99p
Peak 16:00 - 19:00 46.95p
Standard 19:00 - 22:00 30.13p
Off-Peak 22:00 - 00:00 12.99p

How does Cosy Octopus 12M Fixed March 2026 v1 compare against your real usage?

Upload your half-hourly smart meter data (free) and we'll project your annual cost on Cosy Octopus 12M Fixed March 2026 v1 alongside every other active UK tariff.

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Rates across all 14 UK regions

Region DNO Standing charge Unit rate
Eastern England UK Power Networks 50.53p 13.43p - 48.31p
East Midlands National Grid Electricity Distribution 50.46p 12.81p - 46.40p
London UK Power Networks 45.80p 12.86p - 46.55p
North Wales, Merseyside and Cheshire SP Energy Networks 72.08p 14.19p - 50.64p
West Midlands National Grid Electricity Distribution 54.82p 12.87p - 46.58p
North East England Northern Powergrid 61.50p 12.73p - 46.16p
North West England Electricity North West 48.42p 13.80p - 49.44p
Northern Scotland Scottish and Southern Electricity Networks 60.29p 13.77p - 49.34p
Southern Scotland SP Energy Networks 59.82p 12.99p - 46.95p
South East England UK Power Networks 49.88p 13.68p - 49.07p
Southern England Scottish and Southern Electricity Networks 46.48p 13.40p - 48.20p
South Wales National Grid Electricity Distribution 52.72p 13.63p - 48.90p
South West England National Grid Electricity Distribution 56.80p 13.62p - 48.88p
Yorkshire Northern Powergrid 60.41p 12.67p - 45.97p

Rates include VAT where applicable. Half-hourly bands for time-of-use tariffs are shown in the panel above when you select a region.

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Frequently asked questions about Cosy Octopus 12M Fixed March 2026 v1

This tariff is currently published in all 14 UK DNO regions. Use the region selector at the top of this page to see the rates and standing charge for your specific DNO region. Availability is subject to Octopus's own eligibility criteria, which can include smart meter compatibility and account standing.

Cosy Octopus 12M Fixed March 2026 v1 is a time of use tariff with a fixed unit rate for the duration of the contract. Time-of-use tariffs have multiple price bands across the day. Off-peak hours are typically cheapest. Households that can move consumption into the cheaper bands save the most.

New customers signing up via the referral link on this page may receive a £50 credit. Bonus eligibility is determined by Octopus at switch confirmation. We earn a small commission when a switch completes, which helps fund this site - it does not affect the price you pay.

Standing charges and unit rates are refreshed daily from the official Octopus tariff data. The page itself caches for one hour in your browser for faster repeat visits.

This tariff is no longer accepting new customers (it closed to new sign-ups on 23 March 2026). Existing customers remain on it for the duration of their contract. Use the comparison tool to find current alternatives that match your usage pattern.

See your projected cost on Cosy Octopus 12M Fixed March 2026 v1

Upload your half-hourly smart meter data (free) and we'll project your annual cost on Cosy Octopus 12M Fixed March 2026 v1 versus your current tariff, plus every other active UK tariff for comparison.

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Data refreshed .