Your home came with solar and a battery. Now make it pay.
New-builds increasingly come with solar and a battery. The trouble is, most just park spare solar on a fixed timer and quietly leave hundreds of pounds a year unclaimed. ChargeSync is the brains that makes the kit your developer fitted actually cut your bills. £10/month, 30 days free, pause anytime.
No new kit · No engineer · No supplier switch · 30 days free
The gap
Your solar and battery already store excess solar, but on a fixed schedule they can't react to tomorrow's prices, the weather or your demand. The hidden saving is sitting there, every half-hour.
The fix
Think of ChargeSync as sat-nav for your energy. Each evening it reads tomorrow's prices, the weather over your roof and what your home usually gets through, then re-routes your battery and solar every half hour to keep the bill as low as it'll go. No new kit, no engineer. Your developer fitted the kit and set it to "fine". We set it to clever. Half-hourly optimisation needs a time-of-use tariff to bite, anything from Economy 7 through to a fully half-hourly tariff like Octopus Agile; the finer your tariff's time pricing, the more ChargeSync saves.
Let's get the worries out of the way
"Isn't it already smart?"
A timer can't see tomorrow's prices, it just runs a fixed rule. Closing that gap, every half-hour, is the whole point of ChargeSync.
"Will it break my estate deal?"
No. ChargeSync sits on top of whatever tariff you're on, even a "zero bills" or estate deal, and simply plays it smarter. Keep your deal; we just make the zeros work a little harder.
"Only £10, worth it?"
We publish your savings every month. If a month doesn't beat the £10, it pauses, so you only pay once it has already paid for itself.
What you get
Use what you were given
Most new-build systems just store excess solar. ChargeSync makes the same kit work to cut your bill every day, solar pays once; ChargeSync pays every half-hour.
No new kit, no engineer
A software upgrade for the battery and solar your developer fitted, 
, 
, 
and 
today, with more added.
Independent of any supplier
Works with any tariff that's best for you, including Octopus Agile, and it isn't tied to one energy company, so it keeps working if you switch.
Same kit, used progressively smarter
What a home could save each year on top of the solar and battery already fitted, as the same system is used more intelligently. Illustrative estimates for a 10 kWh battery, your figure depends on your home, tariff and usage. The top rung needs a fully flexible half-hourly tariff; most homes land on the middle rungs.
Don’t be fooled: a battery maker may say a system is “optimised”, but a fixed timer can’t react to weather, prices or your demand, so the bigger savings don’t follow.
Illustrative figures for a typical 10 kWh solar-and-battery home on a flexible half-hourly tariff (around 10p off-peak, 24p by day, 40p at peak). What you actually save depends on your home, your tariff and how you use power.
Frequently asked questions
My home already has solar and a battery, why ChargeSync?
My manufacturer says my battery is already “optimised”.
What if my estate came with a special tariff or “zero bills” deal?
Which batteries do you support?
, , and today, with more added all the time. Don't see yours? Tell us and we'll let you know when it's ready.What does it cost?
Make the kit your home came with pay
No new kit. No engineer. We show your savings every month, and if they don't beat the £10, it pauses. 30 days free to find out what the kit your home already has could really save.