The WattIndex Blog
Practical guides to the numbers on your electricity bill: why bills jump, what your appliances really cost to run, how to read a meter, and why the same electricity costs three times more in one European country than in another. Every figure traces back to the WattIndex data pages and calculators.

What Uses the Most Electricity in a Home?
Heating, hot water and a few big appliances drive most of a home electricity bill. See the ranking by wattage and annual kWh, and what each costs to run.
Read article →
Why Is My Electricity Bill So High? 9 Causes and How to Check Each One
A high electricity bill usually has a simple cause. Work through 9 checks, from usage spikes and estimated readings to price rises, and find yours.
Read article →