Savings estimator

Smart controls can lead to significant energy savings, but the exact return on investment (ROI) depends on your current habits and the efficiency of your home. Use our interactive tool below to estimate the potential impact of various smart upgrades.

Interactive Savings Estimator

The total amount you spend on gas, oil, or electricity for heating per year.

£

Used for calculating savings on lighting and appliances.

£

Which smart measures are you considering?

Select all that apply.

Control your heating remotely and set smart schedules.

Control the temperature of individual rooms.

Real-time data to help you identify and reduce waste.

Automated scheduling and motion sensing for lights.

Turn off "vampire power" devices automatically.

Estimated Total Annual Saving

£0.00

Investment Summary

• Est. Upfront Cost: £0
• Payback Period: 0 years
• CO2 Reduction: 0 kg/year

How we calculate this:
Savings are estimated as a percentage of your bills: 10% for thermostats, 5% for TRVs, 5% for monitors, and fixed amounts for lighting and plugs based on average usage.

What you’ll need

To get a more accurate estimate, have the following information ready:

• Annual heating bill: The total amount you spent on gas, oil, or electricity for heating in the last 12 months.
• Current controls: Do you already have a programmable thermostat or TRVs?
• Occupancy patterns: Is the house empty during the day?
• Property size: The number of rooms you currently heat.

Potential savings by measure

Smart Measure	Typical Annual Saving	Estimated Cost	Payback Period
Smart Thermostat	£75 - £150	£150 - £250	1.5 - 2.5 years
Smart TRVs (per room)	£10 - £20	£40 - £60	3 - 4 years
Energy Monitor	£30 - £50*	£0 - £50	0 - 1 year
Smart Lighting (Full home)	£20 - £40	£100 - £200	4 - 6 years
Smart Plugs (Vampire power)	£15 - £30	£10 - £30 (each)	1 - 2 years

*Savings from an energy monitor come from changing your habits based on the real-time data provided.

Methodology

Our estimates are based on data from the Energy Saving Trust and BEIS. We assume a standard 3-bedroom semi-detached home with a modern condensing gas boiler as the baseline.

Note: The greatest savings from smart technology come from automation and behavioural change. A smart thermostat only saves money if it is programmed to reduce temperatures when you are away or asleep.

While this tool provides a good estimate, your actual savings will vary. We recommend starting with a Smart Thermostat as your primary investment.