Lowering bills, cutting carbon

Back to News

August 2021 energy prices update | What homes and businesses need to know


In our August 2021 energy prices update, we explain why rocketing wholesale energy prices are causing confusion for households and businesses alike, and what you should do about it.

Whichever way you look at it, it’s not a great time to be an energy consumer. The last nine months have seen an almost relentless increase in the price suppliers are paying for the energy they sell to homes and businesses, which is inevitably flowing through into the prices we pay as end users.

August 2021 energy prices: what’s happening with wholesale?

The chart below shows ‘month ahead’ electricity prices since September 2020. This is indicative of the price paid by suppliers for the energy they sell to homes and businesses.

August 2021 energy prices: Wholesale electricity costs have almost doubled in just nine months

How are August 2021 energy prices affecting households considering switching energy provider?

High prices are affecting households in two important ways:

  • The cheapest deals don’t look that cheap
  • Your quote says you’ll save money, but your direct debit will go up
  • The price cap is artificially reducing projected savings

We talk about each of these in more detail below.

The cheapest deals don’t look that cheap

If you signed up to a fixed rate tariff a year or so ago and are looking for alternatives when the deal comes to an end, the difference between the prices in 2020 and the prices now are particularly stark. By way of example, the cheapest tariff available from one of our consistently competitive suppliers, So Energy, in May 2020 would have cost an average dual fuel household £71.17 a month (this is the average across all regions of the UK). In July 2020, the same amount of energy on So Energy’s cheapest deal will cost £94.19 – a 32% increase.

If you’re looking at a comparison site like Big Clean Switch that aims to save you money, seeing that kind of jump can understandably undermine confidence that you’re going to get a good deal. But remember, it isn’t that our tariffs have got less competitive – it’s just that the rates available a year ago are no longer viable with August 2021 energy prices.

Your quote says you’ll save money, but your direct debit will go up

Another area that can cause confusion is estimated savings. We rely on Ofgem guidelines to generate your quote, and it’s important to understand how that works (we’ve written a blog about it, here). If you’re on a fixed rate tariff that ends soon, we have to make an assumption about what will happen next in order to compare what you’ll pay over the next 12 months with our range of suppliers and what you’ll pay if you do nothing and stay with your current provider.

Those words – do nothing – are really important. Most suppliers will drop you onto their default tariff at the end of 12 months, which is usually their most expensive deal. Our site will factor that into your projections, so savings calculations will take into account the fact that your current deal will expire. That can feel counterintuitive – how can we possibly say you’ll be saving money if the deals available now are so much more expensive than the one you’re on? Just remember that the deal you’re on is now a thing of the past – and that if you do nothing, you’re likely to end up paying more when you slip onto your suppliers’ default, or ‘standard variable’ deal.

The price cap is artificially reducing projected savings

The final – but possibly the most important – way current prices are affecting households is in savings projections for homes on their suppliers’ standard variable or ‘default’ tariffs. This includes quotes for homes that are on a fixed price deal that ends soon, where we assume you’ll drop onto your supplier’s default tariff when the current one ends – as we explain above. (We’ve written about this issue before, here).

Historically, standard variable tariffs were the money makers for big suppliers, who took advantage of customers’ failure to switch by charging a ‘loyalty penalty’. In response, the energy industry regulator, Ofgem, introduced the a price cap which limits the amount a supplier can charge customers on default tariffs. The price cap is adjusted every six months to reflect changes in the wholesale price of energy.

Since the last price cap was implemented, capping the amount that a dual fuel household paying by direct debit could be charged at £1,138 a year (averaged across all regions of the UK), wholesale prices have jumped enormously. That’s pushed up the fixed price deals that are normally so competitive relative to standard variable tariffs to a level where suppliers are struggling to keep these offers below the price cap.

As a result, customers on default or standard variable tariffs are seeing savings as little as a few pounds when they’re getting their quote, and many are understandably deciding switching isn’t worth the effort. If that’s you, then stop and read on before you make that decision!

Ofgem has recently indicated that the huge wholesale prices we’re seeing currently will result in an increase in the price cap of at least £150, with effect from the beginning of October. At that point, the big suppliers are almost certain to increase their standard variable tariffs in line with the new price cap. So if you’re seeing a saving projection of a few pounds now, that will become tens or even hundreds of pounds one the increase has taken effect.

So, what should households do?

If you’re coming to the end of your previous energy deal, or already on a variable tariff, your decision needs to come down to how you feel about risk:

  • If you prefer certainty, you should switch to the most competitive fixed rate deal now. That means ignoring how the unit rates compare with any previous deal you were on, which reflect energy prices from a year ago or more, and focusing on limiting your exposure to further price rises by locking in a deal now. Providing you don’t use more energy than normal, that will mean you have certainty about how much you’ll be paying for your energy over the next 12 months (or more – some of our most competitive fixed rate offers are 2 year deals). If you want to give yourself the option of swapping if wholesale prices drop, look for a supplier with no exit fees on their fixed deals (like Octopus) or very low exit fees (like So Energy). Exit fees are clearly shown alongside each tariff in your results when you get your quote.
  • If you don’t mind the risk that prices could rise further, then it may be worth waiting. One of the strange effects of the price cap combined with the big increases in wholesale costs is that standard variable tariffs – previously the most expensive deals around – are now looking like great value for money – at least until prices fall or the next price cap takes effect in October. That said, you should still check to see how your supplier’s standard variable tariff compares with others on the market – if it’s not great, consider switching to an alternative tariff but make sure it’s one that doesn’t charge exit fees, allowing you to move if wholesale prices fall.

How are August 2021 energy prices affecting businesses looking for a new energy deal?

Businesses face similar shocks when they’re comparing prices available now with the rates they may have been paying over the last 1-3 years. We’re seeing companies who have had prices fixed for three years facing increases of up to 45% when shopping for a new deal. If that’s you, then remember – there is no price cap on commercial energy, so out of contract rates are the absolute worst case for your business. It’s never been more important to take control of your energy costs by finding a competitive fixed rate deal.

The biggest decision you’ll need to take is how long to commit to current prices.

Shorter, one-year contracts are in general much less competitive at the moment than two- and three- year deals: a sign that energy markets are reasonably confident that current high prices aren’t going to change any time soon. If you don’t mind the risk, you can still take a one-year deal and gamble on lower prices when your renewal comes up, but if your main objective is getting certainty over costs, signing up to a longer-term deal is probably the way to go.

The best thing is always to talk to us – we’ll walk you through your options (including helping you find the lowest cost green options of course) and help you understand what’s best for your organisation.

* ‘Month ahead prices’ are what suppliers pay for energy that will be delivered in a month’s time. Suppliers try to balance risk by forward-buying the energy they know we’ll use as consumers, ensuring they lock in pricing for at least some of the energy they’ll need in the future. That’s how they can then offer fixed price deals to homes and businesses. The further in advance the energy is purchased, the more stable the prices tend to be. Energy bought for delivery the following day tends to show the greatest variability as it’s more affected by short-term factors affecting supply and demand – such as interruptions to supply via interconnectors bringing power from Europe, for example.