Energy efficiency

Energy calculator

Use the energy running cost calculator to estimate annual running costs and carbon emissions for thousands of appliances and electricals.

owl monitorOWL Electricity Monitor

Best for: monitoring overall electricity usage

Not suitable for: monitoring costs of individual appliances

OWL is a wireless electricity monitor which shows you just how much total electricity you are using throughout your home- lights, appliances and any electrical heaters. Find how much this is costing you and how much carbon is being generated. It is easy to install, easy to read and easy to use. The memory feature shows you just how much electricity you have used.

If you lose or damage any of the components of the energy monitor or fail to return it within 2 months then you will be liable to pay replacement costs of £57 (monitor and battery charger).

Energy calculator

Use the energy running cost calculator to estimate annual running costs and carbon emissions for thousands of appliances and electricals.