Private Beta for UK homes with battery + EV charging
Stop Octopus daytime EV charging from draining your home battery.
If Octopus starts charging your EV in the daytime, 1app stops the home battery draining into the car automatically.
Private beta for selected UK homes · Best fit reviewed before onboarding · No payment needed
What 1app gives you straight away
Catch Octopus daytime EV sessions and stop stored battery energy draining into the car.
Top up at lower rates and keep that energy for later instead of wasting the window.
See EV, battery, solar, and heat pump behaviour in one place, with manual override when you want it.
Octopus starts the charge.
Your battery quietly pays for it.
In the daytime, a smart EV session can pull stored battery energy straight into the car. The charger app, battery app, and tariff app all do their own job, but none of them protect the energy you wanted to keep for later.
Octopus starts the car. Your battery pays.
Octopus smart charging kicks in during the daytime. Your solar inverter battery dumps stored energy into the EV. Neither app stops it.
4 apps, zero clarity
You still bounce between solar, battery, EV, and heat-pump apps just to work out what the home is doing.
You keep changing settings by hand
To avoid daytime drain and still catch cheaper periods, you end up babysitting battery modes and schedules manually.
Invisible efficiency drops
Your heat pump's performance quietly degrades over weeks. The manufacturer app never flags it — you only notice the bigger bill.
Why people start looking for a fix
Across mixed-device homes, poor coordination can quietly waste £200–£400 per year before the bill tells you why.
Works with the brands already in your home
1app connects to the hardware you already own — no new boxes, no rewiring. The current private beta is built around the devices where the daytime Octopus EV-battery conflict shows up most clearly.
You are on Octopus Go or Intelligent Go and daytime EV charging can clash with how you want to use your home battery.
You want to keep stored battery energy for later instead of quietly pushing it into the car.
You already have supported devices at home, with Octopus and MyEnergi at the core and Solis support expanding in beta.
You want a safer cloud-based fix, not another daily routine of changing battery settings by hand.
The current rollout is focused on Octopus + MyEnergi + battery homes. Solis visibility is active in beta and expanding as vendor approvals progress. More integrations follow as approvals and support coverage deepen.
See exactly what the daytime conflict is costing your home
This is the flagship 1app.energy use case in solar inverter + battery homes. 1app detects the smart-charge session, protects the battery first, then layers in cheaper-period charging and broader whole-home coordination.
When Octopus schedules the car in the daytime, we mark the exact session window.
We identify when the home battery would discharge into the EV during that Octopus session.
Autopilot can hold battery discharge during the EV session so you do not change inverter settings manually every day.
Does this sound like your setup?
Use the dedicated path if you have Octopus smart charging, a solar inverter battery, and an EV. Otherwise request general early access below.
You stay in control. We just stop the waste.
The automation only touches what you've allowed. Credentials are encrypted, APIs are vendor-approved, and you can override or switch everything off at any time. 1app starts with one specific, checkable fix — and earns broader trust from there.
Encrypted credentials and scoped access
Credentials are stored securely and limited per installation so access is not broader than it needs to be.
Supported APIs only
The rollout is based on vendor-safe interfaces and disciplined integrations, not firmware hacks or unsafe shortcuts.
Manual override stays with you
Manufacturer defaults stay available and automation can be switched off when a user wants direct control back.
Built from installer reality
The product comes from real installs where tariffs, batteries, EV chargers, and heat pumps interact badly across multiple apps.
Every home is reviewed before onboarding — here's what happens after you request access
We do not run a vague waitlist. Tell us your setup, we check whether your home fits the current rollout, and we invite compatible homes first in deliberate waves.
Tell us your setup
Share as much or as little of your setup as you know. Even a simple email-only request is enough to start the review.
We review compatibility and rollout path
We map your setup against the current private beta foundation, selected vendor approvals, and the safest onboarding path for your home.
We onboard homes in waves
As approvals and coverage allow, we invite the best-fit homes first and support them through setup carefully.
If your home fits the current rollout, we will invite you early.
Join with just your email, or share more about your setup if you want a faster compatibility review. Every home is checked by hand before invite.
The key questions people ask before joining
The goal here is simple: make it obvious whether this private beta is relevant for your home before you leave your details.
How does 1app.energy compare?
A practical comparison for UK homes with mixed devices. 1app is the only option built specifically to prevent daytime Octopus EV-battery drain — with broader whole-home value layered on top.
| Feature | Best choice1app.energy | Manufacturer apps | Home Assistant |
|---|---|---|---|
Prevents Octopus daytime EV-battery drain Detects when Octopus smart charging drains your home battery and stops it automatically | Manual only | ||
See whole home at once One dashboard for solar, battery, EV & heat pump | Per app | DIY | |
Works across vendors Mix and match any brand or model | Per vendor | DIY | |
Setup time From sign-up to your first insight | Guided setup | Varies | DIY setup |
Family-friendly Anyone in your household can use it | Basic | DIY | |
Smart optimisation Automatic scheduling to cut waste | Limited | Manual | |
Cost tracking in £ See exactly what you’re spending in £ | Basic | Manual | |
Support included Real people, real help when you need it | Vendor support | Community |