Calculators
Each calculator does the same sums as the video it goes with, and lets you put in your own numbers. Nothing you type leaves your device. The answer is example maths, not advice.
Home battery calculator
The main calculator: your quote, your battery and your tariff in one place. See the payback, what price would pay back, and the sums behind it. Starts from the examples in videos 1 and 3.
Open the calculator → Calculator for video 4Heat pump vs gas boiler: running cost
Our model house in London, a gas boiler against a heat pump. See the yearly running cost, the SPF at which they break even, and the sums behind it, on the standard tariff or a Cosy scenario.
Open the calculator → From the videoMost you should pay for a home battery
Charge at the cheap night price, use the power later when it costs more. What is the most a battery can cost before it stops paying back?
Open the calculator → From the videoPlug-in, installed or portable?
Three ways to get a home battery, side by side: bought online and wired in, a full installation, or a portable power station.
Open the calculator →Home battery quote checker
Put in your quote and tariff. See the payback, the price that would pay back in 10 years, and two quick checks on VAT and tariffs.
More calculators will be added as new videos come out.