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

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.

10 July 2025

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.

10 July 2025

A solar battery allows you to store electricity produced by your solar panels and use it later or, in some cases, sell it back to the grid to make a few quid – but they're not cheap. Read on to see if it's worth getting a solar storage battery for your home...

10 July 2025

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...

10 July 2025

There's lots of financial help available right now due to the cost of living crisis, as well as ongoing support for those on benefits. There's cash available to increase your home's energy efficiency or help you pay your energy bills – hundreds of millions of pounds of it. The key is knowing where to look.

9 July 2025

With the cold weather payment, you can get £25 to help with heating bills for each seven-day period of freezing weather during winter. We've full info below on who can get it, how to apply, and how to check if you're due a payment.

9 July 2025

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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.

8 July 2025

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.

8 July 2025

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...

7 July 2025

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.

4 July 2025

Utility Warehouse has two fixed energy deals that are up to 14% less than the April Price Cap on average. This may be a good deal for some, but it's not as simple as just switching your energy, as you have to take other products too.

3 July 2025

Water is the forgotten utility – many think they can't save, but we've seen successes from those who have slashed £100s off their bills by fitting water meters and cutting down on how much they use. Plus there's help for those struggling... we round up all the ways to cut costs in this guide.

2 July 2025

Attitudes and behaviours are changing and many are opting to go greener. In normal times, switching to a green energy tariff is easy, and can also save you money. Yet the recent energy market crisis means that very few 'green' tariffs are available right now. What's more, some of the green energy claims made by suppliers are now under scrutiny. This guide explains what green energy is and why it is a hot topic for debate right now.

2 July 2025

1 July 2025

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.

1 July 2025

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.

1 July 2025