Flagship use caseWhole-home workflow

Stop Octopus daytime EV charging from draining your home battery

This is the flagship 1app.energy wedge: stop the daytime EV-battery conflict first, then layer in cheaper-period battery charging and broader whole-home coordination.

When energy apps work alone

Smart EV charging can quietly drain
the battery you meant to keep.

On some supported setups, daytime EV charging can draw from stored battery energy. Your charger, inverter, tariff and heat-pump apps can each show only part of the picture, making it harder to understand the whole home or coordinate a response.

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Daytime charging can use stored energy

On some supported setups, a daytime EV session can draw from the home battery before you expect it.

Energy used at the wrong time
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Four apps, no whole-home view

Your charger, inverter and tariff screens each show one piece of the picture. It is difficult to see the complete flow in one place.

More switching, less context
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Manual schedules are easy to miss

Battery modes, EV schedules and tariff windows can fall out of sync, leaving you to check and adjust them yourself.

More admin, more room for error
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Heating efficiency can be hard to see

When heat-pump data sits in another manufacturer app, changes in performance and energy use can be harder to spot alongside the rest of your home.

Higher heating use can go unnoticed

Why people start looking for a fix

Poor coordination can waste energy and increase cost. The impact depends on your tariff, battery and actual usage.

Controlled rollout

This use case already exists in real homes, and onboarding is now underway.

The product foundation is built around conflicts like this one. Customer onboarding is paced carefully, so the next step is to review your exact device and tariff mix.

Best-fit homes onboard first

Homes where multiple devices already interact are reviewed first. Rollout is selective and supported.

Combination creates the value

Whole-home value comes from how devices work together, not from any single device in isolation.

Setup review comes first

Tell us what is installed so we can review the safest and most effective rollout path for your specific configuration.

Best fit

For solar inverter + battery homes on Octopus smart charging where daytime EV sessions can pull stored energy out of the home battery at the wrong time.

Friction today

  • Octopus smart charging can start the car in daytime windows the inverter and battery app do not understand.
  • The home battery can discharge into the EV instead of protecting the house or waiting for evening use.
  • Homeowners end up changing battery modes manually or discovering the problem after the bill arrives.

What improves

  • Detect when a smart-charge session overlaps with battery discharge risk.
  • Hold or protect the battery automatically during the EV session based on the configured rule.
  • Layer in cheaper-period battery charging and whole-home cost visibility so users can see more value after the core fix.

Typical workflow

  1. 1

    Connect Octopus tariff context, EV charger context and the inverter or battery data.

  2. 2

    Detect when daytime EV charging would pull from the home battery.

  3. 3

    Apply the chosen battery protection rule, then review the wider battery timing and whole-home cost outcome.

Related integrations

These device pages are the fastest route from the use case into product-specific details.

Solar and batteryPlanned

Solis

Connect supported Solis hybrid inverter homes to 1app.energy so live solar, battery, grid, home demand, reports and tariff-aware battery behaviour can sit in one place once connected.

Explore page
Solar and batteryPlanned

LuxPowerTek

Connect supported LuxPowerTek hybrid inverters so solar, battery, grid and home-demand context can sit beside tariff and EV charging data in 1app.energy.

Explore page
EV chargingOnboarding now

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.

Explore page
EV chargingOnboarding now

Ohme

Connect supported Ohme chargers so planned charging, charger state and EV demand can sit beside solar, battery and tariff context in 1app.energy.

Explore page
EV chargingOnboarding now

Hypervolt

Connect supported Hypervolt chargers so charger state, sessions, EV energy and mode-based start/stop can sit beside solar, battery and tariff context in 1app.energy.

Explore page
Smart tariffOnboarding now

Octopus Energy

Connect Octopus tariffs to turn device readings into cost-aware actions, daily savings reporting and smarter battery decisions.

Explore page

Smart controls that usually fit this problem

These mode pages explain what battery strategy tends to work best once this use case shows up in a real home.

Smart controlHome-first

Home First

A simpler home-first mode. It runs the home from your own solar and battery first and avoids automatic battery export.

Explore page
Smart controlRecommended

Autopilot

The best starting mode for most homes. Autopilot charges when power is cheap, keeps battery back for the home, and can export spare battery power when prices are high.

Explore page
Smart controlTariff-window charging

Time-based Control

A simple schedule-based mode. Time-based Control charges the battery during your cheaper tariff periods until it reaches the battery target you set.

Explore page

Priority access

Request a review for Octopus + solar battery + EV

Tell us your inverter, charger and Octopus tariff so we can review whether the current rollout can protect your battery during smart charging.

1Choose your inverter first
2Solis and SunSynk monitoring continue
3LuxPowerTek confirms beta access

Start with the signup check.

If your inverter is supported, you can create an account straight away. If it is not listed, the same flow sends you to the compatibility list.

Check if your setup fits

No payment needed · No spam · You stay in control