If you have not reviewed your energy bills recently, then do it now to saving energy bills. What to look out for:

Your rate

Standard, Fixed, Economy 7

Standing charge

How much is the standing charge

Switching your Tariff

There are many websites out there but who do you trust!
Home Energy Scotland recommends
http://citrusenergy.businesscatalyst.com/
Or look for the Confidence Code Logo.
https://energycompare.citizensadvice.org.uk/

Saving energy bills