Peak Window: 4:00 PM – 7:00 PM · Peak: £0.39/kWh

Octopus Energy UK — Intelligent Octopus Go & Octopus Flux — Home Battery TOU Arbitrage Calculator (2026)

Under UK SI 2026/848 (effective Aug 27, 2026), British households can combine 800W plug-in solar + LFP batteries with Octopus Energy's 7.5p/kWh overnight charging to avoid 39p/kWh evening peak rates.

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Home battery Time-of-Use arbitrage diagram for Octopus Energy UK — Intelligent Octopus Go & Octopus Flux peak hours 4:00 PM – 7:00 PM — Octopus Energy (UK) Peak Shaving & TOU Rate Arbitrage

2026 NEM 3.0 & Peak-Shaving Calculator

Home Battery Time-of-Use (TOU) Arbitrage Calculator — Octopus Energy UK — Intelligent Octopus Go & Octopus Flux

Peak Window: 4:00 PM – 7:00 PM

Usable Battery Capacity (kWh)

1.6 kWh3.84 kWh18.0 kWh

Peak Rate (£/kWh)

Charge Cost (Export/Off-Peak £/kWh)

Battery System Cost (£)

TOU Arbitrage Savings Output

Rate Spread Captured

£0.48/kWh

Annual Peak Shaving

£610/yr

Simple Payback

5.2 Years

10-Year Net Profit

£3,900

Under UK SI 2026/848 (effective Aug 27, 2026), British households can combine 800W plug-in solar + LFP batteries with Octopus Energy's 7.5p/kWh overnight charging to avoid 39p/kWh evening peak rates.

Check Anker SOLIX F3800 (3.84kWh / 6000W Split-Phase 120V/240V TOU Battery) Pricing & Specs →

FAQ

Frequently Asked Questions · Octopus Energy UK — Intelligent Octopus Go & Octopus Flux Battery Arbitrage

What are the peak hours and rate spread for Octopus Energy UK — Intelligent Octopus Go & Octopus Flux? ▼

Under Octopus Energy UK — Intelligent Octopus Go & Octopus Flux's Time-of-Use schedule (undefined), peak hours are 4:00 PM – 7:00 PM with electricity priced at £0.39/kWh. Off-peak electricity costs £0.075/kWh, yielding an arbitrage rate spread of £0.32/kWh.

How does home battery storage generate savings under Octopus Energy UK — Intelligent Octopus Go & Octopus Flux? ▼

A residential LiFePO4 battery charges during overnight off-peak hours or from daytime solar generation (£0.15/kWh export credit) and automatically discharges to cover household power consumption during 4:00 PM – 7:00 PM, avoiding expensive peak utility grid draws.

Do I need permission to install a plug-in or AC-coupled battery on Octopus Energy UK — Intelligent Octopus Go & Octopus Flux? ▼

Under modern utility standards and UL 9540 / UL 3700 certifications, non-exporting or zero-export AC storage systems operating behind the meter typically qualify for streamlined interconnection or standard appliance exemptions.