Octopus Go battery and EV optimisation
Octopus Go is simpler than Agile on paper, but homes still need to know whether the fixed off-peak window is serving the car, the battery and the house in the right order.
Private beta rollout
Use this page as an operating guide, not a supplier rate card.
Tariff rates, eligibility rules and regional pricing move over time. The useful part of this page is the operating logic: which homes suit the tariff, where conflicts appear, and what you should verify before acting.
Your hardware changes the answer
Battery, EV, solar and heating all interact with the same tariff in different ways, so the home-level pattern matters more than the headline unit rate.
Check the current supplier terms
Treat the fact block below as a dated summary and confirm current rates or eligibility on the supplier page before switching.
Use the CTA only after the page is useful
The product mention belongs after the tariff tradeoffs are clear, not before.
Key facts to verify
- Off-peak window: 00:30–05:30 every night (5 hours)
- Octopus's public Go page currently starts from 8.5p/kWh during the cheap window, with daytime rate varying by region
- A simple timer-based battery or EV setup works because the cheap window does not move
- Go is strongest when overnight charging can cover a meaningful share of next-day EV or battery demand
- Eligibility and exact prices depend on current Octopus terms, region and your hardware
Facts last checked on 11 March 2026. Rates and eligibility can change by region and over time.
What makes this tariff hard
Go gives a predictable cheap window, but the hard part is deciding how that window should be shared across the battery, EV charger and heating demand.
Best fit households
What strong control looks like on this tariff
- See whether the cheap overnight window is being used by the loads that matter most.
- Compare grid charging into the battery versus direct EV charging without losing whole-home visibility.
- Track next rate changes and overnight cost behaviour inside the same dashboard as live device flows.
- Use the platform’s tariff-aware settings to avoid letting one device dominate the off-peak window.
Where homes usually go wrong
- Homes with both EV charging and a battery can accidentally crowd out one another overnight.
- Cheap import is only useful if the energy is later used at the right time.
- Whole-home reporting matters because off-peak charging can hide expensive daytime import later on.
Integrations that fit this tariff
These integration pages explain which devices are most likely to benefit from this tariff’s control and reporting logic.
Solis
Connect Solis hybrid inverters to 1app.energy to see live solar, battery, grid and home demand in one place, then automate battery charge decisions around tariff windows.
Enphase
Connect Enphase systems to bring microinverter solar data into the same decision layer as tariffs, batteries, EV charging and heating demand.
myenergi Zappi
Connect your myenergi Zappi charger to see EV charging in context with solar, battery and tariff data instead of guessing whether the car is stealing the cheap window.
Octopus Energy
Connect Octopus tariffs to turn raw device telemetry into cost-aware actions, daily savings reporting and smarter battery decisions.
Related whole-home use cases
Use these pages to move from tariff intent into the actual home-level operational problem.
Smart tariff EV charging without home energy conflicts
When EV charging is cheap, it can still be operationally expensive if it competes with battery reserve, heating demand or export value elsewhere in the property.
Solar, battery and EV charging in one app
This is one of the strongest SaaS acquisition pages because the value proposition is simple: stop managing three overlapping energy systems in three different tools.
Whole-home conflict detection for modern energy homes
The more flexible devices a home has, the more valuable it becomes to detect conflicts between them before they show up as cost, lost solar or poor comfort.
Smart controls that usually fit this tariff
These mode pages explain how the battery can behave on this tariff once reserve, export, and whole-home demand are included.
Home First
A simpler home-first mode. It prioritises running the home from your own solar and battery first, minimises grid dependence, and avoids optimiser-led battery export.
Autopilot
The best starting mode for most homes. Autopilot decides when to charge, hold, or export by balancing tariff value, home coverage, refill confidence, and your protected minimum battery SoC. Choose Balanced for a calmer default or Aggressive for stronger value seeking.
Priority access
Request early access for your Go setup
Tell us how your EV, battery and tariff work today so we can guide the right overnight automation setup.
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