Compare Business Electricity Rates in Ireland (2025 Guide)

INIS Energy12 February 20255 min read

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.

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)
With this information, a broker can get live quotes from every supplier in the market and compare them on a total annual cost basis using your actual usage profile — not generic assumptions.

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. 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.

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