Clare Casalis

Senior Energy & Utilities Analyst

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

Average annual energy bills will fall by 7% on 1 July for those on standard price-capped tariffs (most households). But should you stay on the Price Cap, or move to a fixed deal? We've help to decide if fixing is right for you, plus analysis of the tariffs we've spotted...

9 June 2026

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If you're in one of the 65% of homes in England, Scotland or Wales on a standard variable tariff, the price you pay is controlled by the Energy Price Cap. Yet the Cap changes every three months, so it's important to know what's likely to happen in future and how it affects your bill.

9 June 2026

If you've got solar panels, make sure you have a Smart Export Guarantee (SEG) tariff [SHOULD WE IF YOUVE HAD THE MINSTALLED FROM 2020/AFTER JAN 2020?]. It lets you earn money by exporting excess electricity you generate back to the grid. But not all SEG rates are equal – some energy suppliers offer far better rates than others, so it's key you get the best deal.

8 June 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.

8 June 2026

3 June 2026

As part of the drive to reduce carbon emissions, the Government is offering grants of £7,500 to households in England and Wales to help towards the cost of installing a heat pump. Here's what you need to know about the Boiler Upgrade Scheme.

3 June 2026

The Energy Price Cap, which controls what most households pay for energy, will fall by 7% on average on 1 July, meaning the vast majority in England, Scotland and Wales will see their bills go down. What YOU PAY depends on your usage, how you pay and where you live. Use the calculator in this guide to estimate how much YOU'LL pay.

2 June 2026

The Energy Price Cap, which controls what most households pay for energy, will fall by 7% on average on 1 July 2025. We've full info below on what the Cap is and how it works.

2 June 2026

While energy costs are down from the horrifying levels we saw during the energy crisis, many are still struggling to pay their bills. Cutting energy use is a one key way to save. We've rounded up a full list of tips to help, including simple changes to your boiler and appliance settings, mixed in with some thrifty crowd-sourced wisdom.

2 June 2026

Energy suppliers are again offering tariffs aimed at electric vehicle owners. If you're one of the million EV owners in the UK, should you go for one? This guide helps you decide if they're worth it.

2 June 2026

29 May 2026

27 May 2026

Energy regulator Ofgem has proposed that by winter 2025/26, all energy suppliers will be required to offer a low or zero standing charge Price Capped energy tariff. For now, there is just one 'no standing charge' tariff that could help cut bills. Here's how to work out if and when it's right for you...

27 May 2026

From 1 July, those who pay for their energy on a prepay meter will see their bills fall by 7% on average. If you're struggling to pay, there's help available. Here's what you need to know...

27 May 2026

Energy bills can be confusing – sometimes it's hard to decipher exactly how much you're paying. This guide explains the key items you'll find on your bill to give you more control over what you're paying and make switching easier.

27 May 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.

26 May 2026