Controlled Onboarding

One app for solar, battery, EV and tariff.

Monitor solar, battery, EV charging, supported heat pump and smart tariff in one place.

1app.energy helps reduce grid import, charge off-peak, protect the home battery during EV smart charging, and unlock Axle Energy credits and battery-export value where supported.

Sign up now

Trusted by 50+ active users

Solis
SunSynk
LuxPowerTek
Ohme
MyEnergi
Hypervolt
Supported rollout

Live, beta and review paths

1app.energy mobile dashboard
Supported rollout

Built for the devices that shape your energy bill

1app connects to the hardware you already own - no new boxes, no rewiring. Onboarding focuses on the inverter, charger and tariff combinations where whole-home context is most valuable.

Best fit today

You run a supported Solis inverter, SunSynk beta monitoring, or another reviewed battery setup.

You want one coherent view of solar, battery, EV, grid, tariff and source-aware energy reports.

You already use Solis, SunSynk, LuxPowerTek beta, MyEnergi/Zappi, Ohme, Hypervolt beta, Octopus or a tariff setup we can review.

You want visibility first, then safe cloud-based automation only where your hardware supports it.

Energy Providers

Octopus Energy logo
E.ON logo
EDF logo
British Gas logo
ScottishPower logo

Plus tariff-context support for many UK suppliers. Supplier logos do not imply endorsement.

Inverters

Solis logo
Beta
SunSynk logo
Beta
LuxPowerTek logo

Electric Vehicles & Chargers

MyEnergi logo
Ohme logo
Beta
Hypervolt logo

Heat Pumps

In Review
Daikin logo

Controlled onboarding is open for Octopus, MyEnergi/Zappi, Solis and supported tariff setups. Ohme EV charger support is live where enabled. SunSynk monitoring, LuxPowerTek and Hypervolt remain beta paths. Daikin heat pump access remains approval-pending. More integrations follow as approvals and support coverage deepen.

The problem

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.

£100s lost to daytime battery drain
📱

4 apps, zero clarity

You still bounce between solar, battery, EV, and heat-pump apps just to work out what the home is doing.

Wasted time every day
☀️

You keep changing settings by hand

To avoid daytime drain and still catch cheaper periods, you end up babysitting battery modes and schedules manually.

More admin, easy to get wrong
📉

Invisible efficiency drops

Your heat pump's performance quietly degrades over weeks. The manufacturer app never flags it, so you only notice the bigger bill.

Higher bills, no idea why

Why people start looking for a fix

Across mixed-device homes, poor coordination can quietly waste potentially hundreds of pounds per year before the bill tells you why.

What the product does

Built to stop the daytime EV-battery conflict first. Then optimise the rest of the home around it.

The first job is battery protection during daytime Octopus EV charging. After that, 1app helps you use cheaper periods more intelligently, see whole-home flows in one place, and coordinate EV, solar, battery, and heat pump behaviour.

We detect

Octopus daytime EV charging starts

1app monitors your Octopus account and spots when a smart-charge session is scheduled during the day, before your battery starts draining.

We protect

Battery discharge locked out automatically

The moment the session window opens, 1app applies your battery protection rule. Your stored energy stays put. No manual inverter changes needed.

We optimise

Cheaper periods used intelligently

Outside conflict windows, 1app schedules top-ups during the cheapest rate periods and keeps that energy available when you need it most.

System • Manual
No rules set
EV Charger
Waiting…
Home Battery
Idle
Session cost:
--.--
Axle Energy events

Track Axle Energy credits in 1app.energy.

For enrolled homes, record the event window and see Axle Energy credit separately from normal supplier export credit.

Enrolled home

Axle Energy event

Add the event so your report can show Axle credit separately.

24 Jun 2026·19:00 - 20:00£1.00/kWh
Add event
Adjust time
Not enrolled

Example report

Credits stay separate

Supplier export credit£4.72
Axle Energy credit+£7.21
Total credits shown£11.93
Axle Energy iconAxle Energy

Familiar event prompts. Clearer credit reports.

Customers recognise the Axle event, then 1app.energy shows the result beside their normal export and daily cost.

Add the event
Adjust the time
See the Axle credit
Homeowner reviews

Why renewable homeowners choose 1app.energy

Practical feedback from homes trying to make solar, battery, EV and tariff behaviour easier to trust.

Axle credits separatedBattery charge vs tariffEV impact on batteryDaily cost by source
Controls in one place
Everything is controlled flawlessly with full live visibility.

I use 1app.energy with Fogstar batteries, a Solis hybrid inverter, Zappi Glo and Octopus Go. The value is having battery charging, home coverage and tariff timing working from one clearer place instead of trying to line up separate apps every evening. It makes the whole setup feel easier to trust.

Carl Harvey
Carl's story
Solar + battery + grid
The Solis app gave me data, but not peace of mind.

I still found myself checking different screens, guessing what the battery was doing, and trying to work out the day manually. 1app.energy pulls the solar, battery, grid, home usage and tariff picture together. For a home with this much hardware, it feels like the missing software layer I expected after installation.

Solis battery homeowner
See if EV uses battery
The stressful part was never plugging in the car.

It was wondering whether the EV was quietly pulling from the battery, whether it matched the cheap-rate window, and what it meant for the rest of the house. 1app.energy makes the EV, battery and tariff behaviour easier to understand, and where supported, helps protect stored energy from the wrong kind of charging.

EV and smart tariff household
One live home dashboard
Well designed, takes a lot of the effort out of running a modern home.

A clear, reliable app for managing a three-phase home energy setup in one place. The value is seeing usage, battery and EV charging together on one dashboard instead of checking separate apps for each part of the system. It makes daily decisions feel less manual.

Mike Fadden
Mike's story
Axle credits stay separate
Axle Energy events were exactly the kind of thing I would have tracked in a spreadsheet.

Then I would have forgotten about it, or mixed it into normal export numbers. Having Axle credit shown separately from normal export credit makes the report clearer and saves me from doing my own manual maths after every event. It keeps the reward visible beside the normal export story.

Axle Energy enrolled home
See why cost changed
Before 1app.energy, I could see numbers, but not always the story.

Now I can see what came from solar, what came from the battery, what came from the grid, and how the home actually used energy. That breakdown makes the whole setup feel more trustworthy because I can understand why the day cost what it did, and what changed underneath the total.

Home energy breakdown user
Match battery to tariff
The battery used to feel like something I owned but did not fully control.

I knew it was charging and discharging, but not always whether it matched the tariff or the house. 1app.energy helps connect the battery behaviour with off-peak periods, EV demand and home usage, so I feel more confident leaving the system to do its job without checking it constantly.

Battery optimisation user
Stop switching apps
Once you have solar, batteries, an EV charger and a time-of-use tariff, separate apps become tiring.

Each one shows a slice, but none of them explain the home. 1app.energy gives the joined-up view I expected from the start. For me, it is a no-brainer because it makes expensive equipment easier to understand and use day to day.

Complex solar, battery and EV setup
What you get

One view first. Automation where supported.

See solar, battery, EV, grid and tariff behaviour together. Then let 1app.energy act only on supported, customer-enabled control paths.

Step 1

Source-aware monitoring

Connect supported solar, battery, EV and tariff data so reports explain where energy came from and where it went.

Always on
Step 2

Battery protection

For supported Solis homes, 1app.energy can protect stored battery energy when a daytime EV session would otherwise drain it.

Where enabled
Step 3

Energy reports

Review live flow, grid import/export, battery charge/discharge sources, net cost and hardware diagnostics where telemetry supports them.

Unified
Encrypted credentials
Supported APIs only
Manual override where controls exist
Built from real installs
Start with your inverter
Trusted by 50+ active users

Supported homes should not wait.

Click sign up, choose your inverter first, then continue into account creation if your setup fits the current rollout. Solis is open, SunSynk is beta monitoring, LuxPowerTek is beta, and other brands can join the compatibility list from the same flow.

1
Choose your inverter
Select from our supported devices
2
Confirm limits
Acknowledge beta access rules
3
Create account
Secure your spot in the rollout
Before signup

Common questions

Short answers to the things homeowners usually want to confirm before signing up.