How to read your So Energy bill — explained simply

So Energy is a mid-sized supplier founded in 2015, now owned by the Irish state energy group ESB. It's best known for two things customers ask about: tariffs named after animals, and the fact that former ESB Energy customers were moved over to So Energy. Its bills are otherwise clean and app-focused.

What each part of your So Energy bill means

Tariffs named after animals

So Energy gives its fixed tariffs animal names — you'll see things like 'So Falcon', 'So Bear' or 'So Kangaroo' on your bill. There's no hidden meaning to the animal: it's simply how So Energy labels and versions each fixed deal it launches. What matters is the unit rate, standing charge and end date attached to that named tariff, not the animal itself. When your tariff ends you'll roll onto their variable rate unless you choose a new one.

So Flex — the variable rate

Alongside the animal-named fixed deals, So Energy has a variable tariff (So Flex) that tracks the Ofgem price cap and can change every three months. Unlike the fixed tariffs, So Flex isn't sold as 100% renewable electricity. If your bill shows So Flex rather than an animal name, you're on the variable rate — your unit rate and standing charge can move at each cap change in January, April, July and October.

Why your bill changed from ESB Energy to So Energy

In 2021, So Energy merged with ESB Energy, and ESB Energy's household customers were transferred to So Energy. ESB (Electricity Supply Board, Ireland's state energy company) now ultimately owns So Energy. If you originally signed up with ESB Energy, that's why your bills now come from So Energy — your supply moved across as part of the merger, not because you switched.

100% renewable electricity

So Energy supplies 100% renewable electricity on its tariffs (with the exception of the So Flex variable rate). In practice this means So Energy matches your electricity use with renewable generation backed by certificates. It doesn't change your unit rate compared with a non-green tariff from the same supplier, and it doesn't affect how your meter is read — but it's why the bill and your welcome materials describe your electricity as green.

Account balance vs monthly payment

So Energy sets a fixed monthly direct debit based on your estimated annual usage spread over 12 months, then tracks your real usage against it as an account balance. The two won't match month to month — you'll typically build credit in summer and use it in winter. So Energy's app shows your balance and lets you submit readings; keeping readings current is the best way to keep your direct debit estimate accurate.

Common questions So Energy customers ask

Why does my So Energy tariff have an animal name like So Falcon?

So Energy names its fixed tariffs after animals — So Falcon, So Bear, So Kangaroo and similar. The animal is just a label for that particular fixed deal; it has no effect on your prices. What matters is the unit rate, standing charge and end date shown for that tariff. When it ends, you'll move onto So Energy's variable rate unless you pick another fixed tariff.

I signed up with ESB Energy — why is my bill from So Energy now?

So Energy and ESB Energy merged in 2021, and ESB Energy's household customers were transferred to So Energy. ESB, Ireland's state-owned energy group, now owns So Energy. Your supply moved across as part of that merger, so you didn't switch — your account simply continues under the So Energy brand.

Is So Energy electricity really 100% renewable?

So Energy supplies 100% renewable electricity on its tariffs, except its So Flex variable rate. As with most green tariffs, this means your usage is matched with renewable generation backed by certificates rather than a physical wire from a wind farm to your home. It's a recognised system, and it doesn't change your unit rate or how your meter is read.

My So Energy direct debit doesn't match what I used — why?

Your direct debit is a smoothed monthly figure based on So Energy's estimate of your annual usage divided by 12, not your actual month-by-month consumption. You'll usually build up credit in the warmer months and draw it down in winter. If the estimate looks wrong, submit an up-to-date meter reading in the So Energy app and ask for a direct debit review.

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