The BillShave 1 2 3 Challenge
How close to zero can we get
your energy bills?
Let's find out — and work out whether we can get you beyond zero.
There are three levels.
Three sizes. Three levels.
All designed to pay for themselves — and provide you surplus as well as savings.
Entry Level
~5kWh · One brick
More than £30/month
Level Two — The Core
~10kWh · Two bricks
Around £60/month
Level Three — The Max
~15kWh · Three bricks
More than £90/month
Entry Level
More than £30/month of income
One battery brick ~5kWh
Quietly charging at night on cheap overnight electricity — around 7p per unit — then powering your home through the day so you're not buying the expensive stuff at 30p.
This level is designed to cover its own costs and leave you a surplus from the start.
~ 7p
Overnight rate
Per unit charged
~ 30p
Peak daytime rate
What you avoid
Level Two — The Core
Around £60/month
Two bricks ~10kWh
Twice the capacity, twice the headroom. Your electricity costs progressively shift from whatever you're paying now towards overnight rates — typically 7p per unit rather than 30p.
On top of the bill saving, there is a further income stream: specialist energy companies pay householders with home batteries a regular sum to briefly use that stored electricity to help balance the National Grid.

That income comes to you directly each month.
Bill Savings
Shift spend from 30p to 7p per unit, every day
Grid Income
Monthly payments direct to you for helping balance the National Grid
Level Three — The Max
More than £90/month
Three bricks ~15kWh
The full system. At this level your home is largely running on electricity you bought overnight for next to nothing.
The bill saving, the grid income, and export payments combine into a figure most people find hard to believe — until they see it on their own statement.
💡 Bill Saving
~ 7p overnight
Grid Income
Regular monthly payments from grid support
🔋 Export Payments
Earn also from surplus electricity sent back to the grid
How does it pay for itself?
There is no magic. There are three real things happening.
The price gap is real
Overnight electricity in the UK costs around 7p per unit. Peak daytime electricity costs around 30p. A battery stores the cheap and uses it instead of the expensive.
The National Grid pays you
Specialist operators aggregate home batteries and pay householders when the grid needs help balancing supply and demand. Real monthly payments, directly to you.
The system earns more than it costs
All three levels are designed to be cashflow-positive from day one — the earnings exceeding the cost of getting set up.
Every cycle, every month — the numbers work in your favour.
Already got a battery?
Even better.
We can look at what it is currently doing — tariff, grid income enrolment, export settings — and show you what you are missing
Most existing battery owners are not enrolled in grid income schemes, and many are on the wrong tariff. A quick review can unlock earnings you're already entitled to.
Tariff check
Are you on the cheapest overnight rate available to you?
Grid income
Are you registered with to earn monthly payments?
Export settings
Is your system set up to earn from surplus electricity?
Ready to find out what your level is?
All you need to do is send us your most recent electricity bill. We'll send you the options — no jargon, no obligation, just the numbers.

It takes less than a minute. Your bill tells us everything we need to work out the possibilities and project your monthly surplus.
Just send a snap or scan of a recent bill to Enquire@GreenStreets.club

Further enquires via WhatsAPP here:

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iBillShave is a Green Streets service.
Earnings figures are estimates based on modelled performance across annual cycles and grid income event participation.
Individual results will vary.