Irish businesses pay some of the highest electricity rates in Europe. The SEAI/Eurostat weighted average for business electricity hit 24.27 c/kWh in H1 2025 — roughly 36% above the EU average. But that's an average. What you actually pay depends on your consumption, your meter type, your contract terms, and whether anyone has reviewed your account recently. The spread between the best and worst deals on the market is wide enough to mean thousands of euros per year for a typical SME.
Here's how business electricity rates work in Ireland right now, what drives the differences, and how to compare properly.
What Irish businesses are paying in 2025
Business electricity rates in 2025 vary significantly depending on your size and contract type. Small and medium businesses on standard contracts typically pay 25–28 c/kWh on day rates and 14.5–17.5 c/kWh on night rates. Larger businesses with negotiated contracts pay less — around 20–23 c/kWh during the day and 13.5–15.5 c/kWh at night.
These are "all-in" bundled rates that include the wholesale energy cost and regulated pass-through charges. The wholesale component accounts for roughly 10–12 c/kWh, with regulated charges adding approximately 14.6 c/kWh on top. Suppliers compete primarily on the margin between these two figures.
The market has been volatile. Wholesale electricity prices on the Single Electricity Market averaged €167/MWh in January 2025, falling to around €95/MWh by September before ticking up to roughly €107/MWh in December. That's well below the August 2022 crisis peak of approximately €388/MWh but still above the pre-2021 historical norm of €40–60/MWh.
Why rates differ so much between suppliers
In late 2025, Irish electricity suppliers diverged significantly on pricing. Electric Ireland held prices steady while competitors raised theirs by 7–13.5%. Energia increased prices by 10.9–12.1% from October 2025. SSE Airtricity announced two increases: +10.5% from April and +9.5% from October. Bord Gáis Energy raised standard unit rates by 13.5% plus 12% on standing charges.
The primary driver was CRU-mandated network charge increases of approximately 20–21% — reflecting a major grid investment programme for Ireland's renewable transition. These regulated charges are passed through by all suppliers, but how suppliers handle the pass-through varies. Some absorb a portion; others pass it through in full and add margin on top.
This means comparing on unit rate alone is misleading. Two suppliers quoting similar unit rates can look very different once you factor in standing charges, contract length, exit fees, and how they handle DUoS pass-through. You need to compare on total annual cost based on your actual consumption profile.
What affects your specific rate
Several factors determine what rate you'll be offered:
Consumption volume is the biggest driver. Suppliers offer progressively better rates for higher consumption because the per-customer acquisition and administration cost is spread over more units. A business using 100,000 kWh per year will get a materially better rate than one using 15,000 kWh. Meter type matters. Businesses on DG5 meters (non-maximum demand) see one cost structure; those on DG6 meters (maximum demand, above 50 kVA MIC) see another. DG6 customers pay lower per-unit DUoS charges but face significant capacity charges based on their MIC setting. Contract timing affects the rate you lock in. Wholesale prices move daily, and the forward price at the time you sign your contract determines the commodity portion of your rate. Signing during a price trough can save 10–15% compared to signing during a peak. Payment method can also affect your offer. Direct debit typically gets better rates than invoice billing, and some suppliers charge higher rates or request security deposits for businesses without established credit history.What's actually inside your unit rate: the DUoS/PSO breakdown
Most comparison guides quote a single unit rate and stop there. That number is actually a stack of separate charges, each set by a different party, and understanding the stack is what lets you spot whether a quote is genuinely competitive or just re-labelling the same pass-through costs:
| Component | Who sets it | What it covers | | --------------------------------- | -------------------------------------- | ------------------------------------------------------------------------------------------------- | | Wholesale energy cost | Market (SEMO Day-Ahead Market) | The actual electricity — moves daily with generation mix and demand | | DUoS (Distribution Use of System) | CRU-regulated, charged by ESB Networks | Cost of moving electricity across the local distribution grid to your premises | | TUoS (Transmission Use of System) | CRU-regulated, charged by EirGrid | Cost of the high-voltage transmission network | | PSO levy | CRU-set annually | Public Service Obligation — supports renewable, peat, and security-of-supply generation contracts | | Supplier margin | Each supplier | Acquisition cost, billing, customer service, and profit |
The first four rows are largely identical no matter which supplier you're with — DUoS and TUoS are regulated pass-throughs, not a place suppliers compete. The competition is almost entirely in the wholesale hedging strategy and the margin row. That's why two quotes with wildly different headline rates can converge once you strip out the regulated portion — and why a broker comparing on total annual cost, not headline unit rate, catches differences that a quick glance won't.
A worked example: 45,000 kWh SME
Numbers make this concrete. Take a small manufacturing business using 45,000 kWh a year, split roughly 70/30 day/night — a typical profile for a business running standard hours with some overnight equipment left running.
| | Rollover / unreviewed contract | Renegotiated / switched | | ------------------------------ | ------------------------------ | ----------------------- | | Day rate | 27.5 c/kWh | 21.5 c/kWh | | Night rate | 16.5 c/kWh | 14 c/kWh | | Annual day cost (31,500 kWh) | €8,663 | €6,773 | | Annual night cost (13,500 kWh) | €2,228 | €1,890 | | Standing charge (est.) | €600 | €550 | | Total annual cost | €11,491 | €9,213 | | Annual saving | | €2,278 (~20%) |
This is the kind of gap that shows up when a contract has quietly rolled over onto a supplier's default rate rather than being renegotiated at the market rate — the day/night split and the standing charge both move, and both matter to the total. The CRU's average reported saving of €946/year for actively switching businesses is a blended figure across all consumption levels; a 45,000 kWh business sitting on a stale rollover rate can see considerably more.
Why standard comparison sites don't work for business energy
Bonkers.ie and Switcher.ie are built for residential customers with published standard tariffs. Business rates are individually negotiated, and no Irish supplier publishes standard commercial tariffs. The "business" sections on residential comparison sites are essentially lead-generation forms, not real-time comparisons.
To compare business electricity rates properly, you need:
- Your MPRN (11-digit Meter Point Reference Number, on every bill)
- At least 12 months of consumption data in kWh (day and night split if applicable)
- Your current unit rates and standing charges
- Your contract end date (required on all bills since June 2023)
- Your MIC and DUoS group (for larger connections)
How to get a comparison that's actually useful
The most reliable way to compare business electricity in Ireland is to work with an independent energy broker who has access to all suppliers — this is exactly how our price comparison service works. A good broker doesn't just find the cheapest unit rate — they evaluate the total package: unit rates across day/night/peak periods, standing charges, DUoS pass-through method, contract length and exit fees, rollover clauses, and payment terms.
The comparison should be personalised to your consumption. A business that uses most of its electricity at night needs a different contract than one that peaks during the day. A business on a DG6 meter needs MIC and capacity charges factored in. Generic "average savings" figures are meaningless without your specific data.
Active customers who switch or renegotiate annually save an average of €946 per year on electricity according to CRU data. Over four years, that compounds to nearly €4,000 — and that's the average, not the ceiling. Businesses on rollover rates or with incorrect MIC settings can save multiples of that.
Ready to see where you stand? Get a free energy comparison and we'll show you exactly where you sit against the current market — free, no obligation, within 48 hours. If you decide to move, our guide to switching business energy supplier in Ireland explains exactly what happens next.
Where the wholesale numbers in this guide come from
The wholesale figures above aren't a one-off lookup — we track the SEMO Day-Ahead Market ourselves, day by day, including price spreads and wind generation's effect on price. If you want to see the current state of the market rather than a snapshot from when this guide was last updated, our wholesale market tracker publishes the underlying data we use to sanity-check every quote we get from suppliers.