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.
2026 NEM 3.0 & Peak-Shaving Calculator
Peak Window: 4:00 PM – 7:00 PM
Home Battery Time-of-Use (TOU) Arbitrage Calculator — Octopus Energy UK — Intelligent Octopus Go & Octopus Flux
1.6 kWh3.84 kWh18.0 kWh
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.
Anker SOLIX
£1099
Anker SOLIX Solarbank 2 E1600 Pro (800W/1200W Plug-in + 1.6kWh LFP)
- ✓Built-in 800W microinverter (expandable)
- ✓1.6kWh LiFePO4 battery (up to 9.6kWh)
- ✓Zero-export smart meter included
EcoFlow
£999
EcoFlow PowerStream / STREAM 800W Balcony Solar + 2kWh LFP Kit
- ✓Smart plug dynamic load allocation
- ✓Plug-and-play flat MC4 window cable
- ✓App-controlled TOU discharge schedule
Anker SOLIX
£2799
Anker SOLIX F3800 (3.84kWh / 6000W Split-Phase 120V/240V TOU Battery)
- ✓Native 240V NEMA 14-50 output for EV & Home Panel
- ✓Built-in Time-of-Use (TOU) peak shaving mode
- ✓Expandable up to 26.9kWh
EcoFlow
£4499
EcoFlow DELTA Pro Ultra (6.1kWh / 7200W Whole-Home TOU Arbitrage System)
- ✓7.2kW continuous 240V output
- ✓Automated NEM 3.0 & PG&E TOU optimization
- ✓0ms UPS switchover