Most businesses save between 10% and 40%by switching energy supplier, with the biggest savings going to those currently on out-of-contract or "deemed" rates. The exact figure depends on your usage, your contract status, and how close you are to renewal — but a free comparison shows your specific saving in minutes.
There's no single headline number for business energy savings, and any broker who promises one before seeing your bill isn't being straight with you. The size of your saving comes down to a handful of factors.
Your current contract status is the biggest one. If your fixed deal has ended and you've rolled onto out-of-contract rates, you're almost certainly overpaying — sometimes dramatically — and the saving from switching can be substantial. If you're still mid-contract on a competitive rate, the gain will be smaller.
Your usage matters too. A high-consumption business — a brewery, a busy kitchen, a workshop — has more to gain from even a small per-unit improvement than a small office does. Timing plays a part as well: prices move with the wholesale market, so when you lock in affects the rate you get. And finally, how you buy makes a difference — comparing the whole market rather than renewing with your existing supplier tends to surface better rates, because suppliers price renewals less competitively than new business.
When a fixed-term contract ends and you haven't agreed a new one, suppliers move you onto default out-of-contract rates. These are typically their most expensive tariffs. Businesses in this position are usually the ones who see the largest savings from switching, simply because they're starting from the highest baseline. If you suspect you're out of contract, it's worth checking your latest bill as a priority.
Take a small hospitality business spending roughly £4000 a year on electricity on an out-of-contract rate. After a market comparison and a switch to a fixed deal, an annual saving of around 40% is realistic — money that goes straight back into the business, with no change to the actual supply.
Finding your saving doesn't require hours of admin. Send us a recent bill — we just need your usage and contract end date, and if you can't find a bill we can usually track the details down with a quick Letter of Authority. We compare 15+ suppliers, email you the best options in plain English, and if you choose to switch, we handle everything with your old and new supplier. You don't lift a finger.
Want to know your specific saving? Get a free comparison →
Is switching business energy worth it?
For most businesses, yes — particularly if you're on an out-of-contract rate or approaching renewal. A comparison is free and takes minutes, so even confirming you're already on a good deal is worthwhile.
Does switching supplier interrupt my supply?
No. Switching is a commercial change only — the same electricity and gas reach your premises through the same network. There's no interruption, no rewiring, and no downtime.
How long does a business energy switch take?
Typically a few weeks from agreeing your new rate to the switch completing, though it varies by supplier and meter type. We manage the timeline and the paperwork on your behalf.