Clare Casalis

Assistant Editor - Money Products

Clare joined MSE in September 2021 after a career as a chartered accountant. She started out as a writer on MSE's Money team, exploring everything from student loans to pensions, before moving across to the Energy and Utilities team in November 2022.

As Senior Energy and Utilities Analyst, Clare is responsible for the quarterly Price Cap updates to our guides, and the daily updates to our popular Should I fix my energy? guide, which explains if it's worth fixing your energy tariff, as well showing the current energy deals available. Clare also helps out on the Cheap Energy Club.

Clare has written several new guides, including Heat pumps explained, Is solar battery storage worth it?, How to switch your energy and, most recently, Winter Fuel Payments.

Outside of work, Clare's passionate about travel and embarks on global adventures with her family as often as she can (on a budget of course!). She also loves running and yoga to keep a healthy body and mind.

Latest from Clare Casalis

Traditionally, switching your energy deal was the best way to cut bills, but with the recent energy crisis, savings aren't anywhere near what they used to be. Yet deals are returning, and for some, it could now be worth considering switching.

3 August 2026

There are now more than 1.5 million homes across the UK with solar panels. As well as saving you money on energy bills, solar panels can earn you cash. And don't worry, they can still generate electricity on gloomy days, vital when the weather's as dull as dishwater. But they cost an average of £7,000, so you need to understand how to work out if the sums add up.

30 July 2026

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When you book a flight departing the UK, your ticket price will include various fees, such as airport tax. However, this isn't collected by HM Revenue & Customs from the airline until after you actually fly. If you don't fly – even by choice – you shouldn't have to pay the tax. This guide explains how to claim a refund for Air Passenger Duty (APD) if you cancel a non-refundable ticket or miss a flight.

28 July 2026

If you live in Northern Ireland, you can save on your electricity bill by switching supplier or changing the way you pay for energy – some could slash £100s/year off their bill.

21 July 2026

Energy suppliers are enticing new customers to switch, and getting existing customers to stay, with a whole host of rewards, from bill credit to cheap cinema tickets. But, whatever you do, don't switch to one of these suppliers purely for their rewards. Make sure you do a bespoke comparison to find the best energy deal for you. The rewards it offers should just be an added bonus.

16 July 2026

Energy firms are banned from hitting you with an unexpected bill for any energy you used more than 12 months ago, that you haven't been correctly billed for before. But there are over 3,000 complaints to the ombudsman of just this happening – here's what you need to know...

16 July 2026

The State Pension was increased by 4.1% in April 2025. Most of us will receive some State Pension from the Government when we retire, but it's a complicated system, so understanding what you're entitled to is important. This guide will explain:

14 July 2026

There is a potentially unbeatable opportunity everyone aged 40 to 73(ish) needs to consider. If you're missing national insurance credits, you can buy back up to six years. This can be prove very lucrative, as some are on course to make over £50,000 in boosts to their State Pension by following this guide.

14 July 2026

If before reaching state pension age, you care (or cared) for a young family member while the child's parents were at work, there's a little-known credit that could boost your state pension by £1,000s. These credits work by filling in gaps you may have in your national insurance record, which is what dictates your state pension amount. This step-by-step guide tells you how to check if you qualify and how to apply if so.

14 July 2026

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30 June 2026

eSims have been around for more than a decade, but it's only recently they've become more widely available in the UK. Yet most UK firms still don't fully support them. Where they really shine is if you're planning a trip abroad. We take you through what an eSim is, how you can get one and whether it'll save you any money below – plus how to install one on an iPhone or Android mobile.

30 June 2026

18 June 2026

You don't have to take your state pension when you hit state pension age, currently age 66. If you defer it, you'll get paid a higher amount when you do decide to claim – up to 5.8% a year more in fact. But you'll receive it for a shorter time. Whether it adds up for you will depend on how long you are likely to live and your income, so here's what you need to consider.

15 June 2026