Why we built this.
Solar panels, batteries, EV chargers and smart tariffs can all work correctly while the home still feels impossible to understand. 1app.energy was built to give supported homes one trusted view first, then safe controls where the hardware and customer settings allow it.
The problem
The problem we kept seeing
A modern home can have a solar inverter app, a battery app, a charger app, a tariff app and still no clear answer to simple questions: where did the energy go, what did the battery actually do, and why did today cost more than expected?
The Octopus daytime EV-battery conflict is the clearest example. The battery can discharge into the car, solar storage disappears before the evening, and no individual device shows it as a fault. The wider problem is the same: disconnected data leads to poor decisions.
The gap
Why existing solutions do not fix it
Inverter manufacturers optimise for their hardware. EV charger manufacturers optimise for their charger. Energy suppliers optimise for dispatch efficiency. None of them have a live view of all the other devices in the home simultaneously.
The coordination layer (something that can see tariff timing, battery state, solar generation, grid import/export, EV charging and diagnostics in one place) does not exist in those individual products. That is what 1app.energy is being built to provide.
Our approach
How we approached building it
We started with the most common and most costly conflict first: Octopus Intelligent Go daytime sessions draining home batteries. That single problem affects a large number of UK homes and can create meaningful avoidable losses over time.
Solving it required live API connections across tariffs, supported inverters such as Solis, SunSynk beta monitoring, LuxPowerTek beta, Zappi, Ohme, Hypervolt beta charger context and reviewed tariff setups, plus a coordination layer that can decide, for supported Solis homes, whether to hold the battery or hold and charge it further.
The whole-home platform - live flow, energy reports, source mix, grid import/export, battery charge and discharge context, and diagnostics where available - is built underneath. The rollout is paced because each home is different, and we review every request carefully before inviting.
Who we focus on
UK homes that have already made the investment
Solar panels, a home battery, an EV charger and a time-of-use tariff. These homes have everything they need to reduce grid dependency and make bills more predictable. The problem is that the devices are not coordinated, and the losses from that are real but hard to see.
We are not trying to serve every home. We are trying to serve the homes where the problem is clear, the devices are supported, and the recoverable savings are meaningful.
Where we are now
Controlled onboarding, reviewed by fit
We are reviewing requests carefully, not by sign-up date but by fit. If your home uses Solis storage, SunSynk monitoring, or LuxPowerTek beta storage alongside a Zappi, Ohme or Hypervolt EV charger and an Octopus tariff, it is likely a strong candidate.
SunSynk is monitoring-first today; battery control waits until provider write and readback safety is proven.
If you have a Daikin heat pump as well, we can review the full setup while Daikin access remains approval-pending.
Sounds like your home?
Tell us which devices and tariff you are on. We review every request and invite in order of fit.