Early access opening soon

Tell us what's in your home.
We'll do the rest.

Select the solar, battery, EV charger, heat pump, hot water cylinder and smart appliances you already have. nested loop connects them, coordinates them against your smart electricity tariff, and starts saving you money automatically. No new hardware required to join the waitlist.

£1,263average saving per home, per year
9.5×more savings than an uncoordinated battery
85%solar self-consumption with full HEMS
0pieces of new hardware needed to start

Select what you already have.
Watch the savings add up.

nested loop is retrofit-first. Whatever you've already installed, it works with it. Pick your setup below to see what coordinated control would do for you.

What's already in your home?

Select all that apply. There's no wrong combination, every device added increases what we can coordinate.

Solar panels
Generating power
Battery storage
Stores cheap energy
EV charger
Home charge point
Heat pump
Space heating
Hot water cylinder
Stored hot water
Smart appliances
Washer, dryer, etc.

Your nested loop setup

Select your devices above to see your estimated savings.

£0
estimated annual saving
How it works

One platform.
Every device, coordinated.

Whatever you selected above, here's what nested loop actually does with it, every single day.

Reads your tariff, live

Connects directly to your smart electricity tariff's price feed, whether that's Octopus Agile or another dynamic tariff, so it always knows what's coming next.

Schedules everything for you

Battery charges overnight when it's cheapest. Heat pump runs ahead of the morning peak. EV tops up without you lifting a finger.

Sells back at the right moment

When prices peak, stored energy exports to the grid. Your home becomes a small power plant, earning while you're not even thinking about it.

Shows you the proof

One app. Live status, daily savings, monthly totals. You see exactly what automation is doing for you, every day.

You don't replace anything you already own. You just tell us what's there, and nested loop brings it together.

A battery alone gets you partway.
Coordination gets you the rest.

Verified figures, not internal estimates. The jump from isolated devices to a coordinated home is the entire game.

30%

Solar alone

Self-consumption without storage or smart control.

60%

Battery added

Better, but devices still compete for the same cheap slots.

85%

Full coordinated HEMS

Every device working together. This is what nested loop unlocks.

Why join now

Early access has its advantages.

1st

First onboarding slots

Waitlist members are onboarded before general availability opens.

£0

No hardware required to join

Sign up with whatever you currently have. Add more later, anytime.

1:1

A real setup walkthrough

Every waitlist member gets a personal call before going live, not a generic onboarding email.

Your home, automated.

Join the waitlist with the setup you selected above, and we'll be in touch with your personal savings estimate and onboarding date.

Your selected setup

Nothing selected yet. Build your home above or join with email only.

You're on the list.

We've noted your setup and will be in touch with your savings estimate and onboarding date.

No payment required. No commitment. Unsubscribe any time.