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Heating & energy

House with solar panels on the roof and a battery on the wall

Solar panel battery popularity is booming: should you buy one?

Solar panel batteries are becoming more popular, with Duracell, LG, Samsung and Tesla among manufacturers. But is a solar power battery right for your home and how much does a solar battery cost? We asked solar pv owners to find out.

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Top five cheapest energy deals for July 2019

Save £300 a year on gas and electricity and get good customer service. Plus find out how much your air conditioner or fan is adding to your electricity bill. Compare gas and electricity prices to see if you could pay less.

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Most common solar panel problems and how to solve them

The most common solar panel problems revealed by exclusive Which? research. Plus how long after installation solar pv faults are likely to occur, how serious they are and expert tips on how to solve problems from inverters to pigeons.

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Problems with retail, energy and telecoms are on the rise

Despite consumers having made almost double the number of complaints about businesses than last year, they are increasingly choosing not to raise issues directly with companies, the Ombudsman Services has...

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Will solar panel owners struggle to get new SEG renewable energy payments?

New solar panel owners will be paid for electricity they put into the grid from 2020, the government announced. The smart energy guarantee replaces the feed-in tariff scheme. Octopus Energy, Bulb and Eon have solar pv tariffs now.

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Shell Energy customers owed compensation

Shell Energy customers who were on First Utility’s default or standard tariff for gas or electricity are due compensation, after they were overcharged in relation to the default tariff cap. Find out if you’re owed money for energy.

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Top five cheapest energy deals for June 2019

Save £300 per year on gas and electricity and get good customer service. We list high-scoring energy companies which offer cheap energy deals too. Compare gas and electricity prices to see if you could pay less.

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The best energy firms for online service

The best energy firms for online customer service, as revealed by the Which? energy companies satisfaction survey and undercover research. Plus we list whether firms offer live chat, chatbots, Facebook messenger, Twitter and email.

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Revealed: the terrifying smoke alarms that will fail when you need them

Four smoke alarms that are widely available online have recently failed all eight smoke detection tests carried out by Which?. The alarms pose a danger to anyone who owns them...

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Is it worth switching energy supplier for £50 reward?

Bulb, Good Energy, Octopus, Ovo and others are offering cash rewards to tempt you to switch energy supplier. But why are they paying out and is it too good to be true? We reveal what you should consider before you follow the money.

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