Scottish Power

Npower is running a trial that could see an end to its standard variable tariff – for the first time it's moving some customers onto another fixed deal at the end of their current contract. But most could still save by switching.

The number of customers ranking their energy company's customer service as 'poor' has increased across the board, according to our latest poll of MoneySavingExpert.com users.

Three out of five households are still paying an average £300 more than they need to for their energy despite near-record switching rates this year.

Customers could be stuck on pricier energy tariffs for up to an extra three weeks as all gas switches are delayed while an IT system is updated.

Smaller energy suppliers are continuing to outperform the big six when it comes to customer service, a new poll of MoneySavingExpert.com users reveals, despite those at the bottom of the table significantly upping their game in the past six months.

Many of the UK's four million households which prepay for their energy will see prices drop on 1 April when a new price cap comes into force, but savings will vary hugely and at least 200,000 customers will see an increase, new figures obtained by MoneySavingExpert.com reveal.

Scottish Power has become the latest big six energy firm to hike prices, with its dual-fuel standard tariff to rise by an average of 7.8% from 31 March. But British Gas has announced it's freezing its standard tariff prices until 1 August.

We've been shouting it till we're blue in the face - if you're on a standard tariff, fixing can save you £100s. For the 66% of you on one with a Big 6 provider it's doubly important you ACT NOW. First, their prices are set to rise. On Monday smaller player Ovo Energy sneaked out a 5% rise starting in Jan - others are likely to follow.

Big six energy suppliers have been accused of keeping 1.5 million vulnerable and low income customers who receive a Government electricity discount on expensive standard variable tariffs.

Customers who recently made a complaint to their energy supplier are less satisfied with how it was handled compared to two years ago, Ofgem has revealed, with Npower considered to be the worst supplier at handling complaints.