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So Energy
This is So Energy, a London energy supplier founded in 2015 with an app-led approach to household gas and electricity. Its fixed tariffs come with 100% renewable electricity, and it also installs solar panels, batteries and EV chargers.
No codes right now. We haven't confirmed a So Energy code or deal yet. Follow the store and we'll email you when one lands.
By Vouchernaut Editors, updated .
So Energy discount codes and deals, October 2026
A good deal is worth checking.
No current offers have been confirmed. When we confirm a So Energy code or deal, it's listed here.
Check prices at So EnergyWhat a So Energy quote has to beat
Every tariff compared →So Energy doesn't publish its prices in a form I can use, so I can't cost its tariffs. Give me your postcode for the cheapest tariffs I hold for your home and the price cap, then set So Energy's quote against them.
Pricing a medium home: Direct Debit, gas and electricity. Ofgem's figures for homes that use less than most (1,600 kWh of electricity, 6,000 kWh of gas), about the middle and more. Your bill or your supplier's app gives a truer answer.
So Energy: what to know before you buy
The story
So Energy was founded in 2015 with the aim of making energy better for UK homes. It is based in Chiswick, west London, and says it built its own technology platform and ran So Unique, a trial of a personalised tariff. Its UK-based support team handles questions about tariffs and accounts.
The tariffs
So Fixed holds your unit rates and standing charges for the length of a 12 or 24 month contract, however the Ofgem price cap moves. So Green Tracker follows the price cap but is designed to sit below it, and needs a smart meter. So EV offers a cheaper overnight rate for charging any electric car and needs a smart meter too. So Flex is its standard variable tariff, with rates that change every three months in line with the price cap.
Green energy
The company says all of its fixed tariffs and the Green Tracker are powered by 100% renewable electricity. So Flex is its only tariff without that. Customers can also vote on which type of UK-generated renewable power it invests in, such as solar, wind, hydro or biomass.
Beyond energy
Alongside gas and electricity, So Energy sells solar panels and batteries, home EV chargers, heat pump installation through partners, and boiler and home cover. Smart meters are installed at no charge, so you never need to send a meter reading.
Saving
So Energy publishes no prices on this page, because tariff rates depend on your address, usage and meter. Get a quote on its site with your postcode to see what it would charge, and compare that with your current supplier. Any live code is listed here, and a friend referral earns energy credit for both of you.
Moving home
If you move, you can tell So Energy and take your supply with you. Its help pages also cover complaints, meter readings and what to do in an emergency.
Questions about So Energy
Are there any So Energy discount codes?
We don't currently list a confirmed discount code. That doesn't mean the store has no promotions; check its website for current prices.
Is So Energy renewable?
The company says all of its fixed tariffs come with 100% renewable electricity, and so does its Green Tracker. So Flex, its standard variable tariff, is the one tariff without it.
Do I need a smart meter for So Energy?
Not for its fixed tariffs. So Green Tracker and So EV both need a smart meter, and So Energy installs them at no charge.
What is the difference between fixed and variable tariffs?
On a fixed tariff your unit rates and standing charges stay the same for the whole contract. On a variable or tracker tariff they can change every three months in line with the Ofgem price cap.
Does So Energy sell solar panels?
Yes. As well as supplying energy it installs solar panels and batteries, sells home EV chargers and offers heat pumps through partners.
How do I get a price from So Energy?
Enter your postcode on its quote page. The price depends on your address, how much energy you use and your meter type.
Who handles my order?
You complete your purchase with the retailer. For order changes, delivery questions or a refund, contact the seller shown on your order confirmation. Vouchernaut publishes shopping guides and offers; we don't process your purchase.
Got a question about So Energy?
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