Best energy for low usage in Ireland

Supplier price tables are built for a mythical household that burns 4,200 kWh of electricity a year — the CRU typical-usage figure. A one-person apartment with a fridge, a laptop, an induction hob and no electric heating often uses half that. So this ranking prices every supplier at a stated low-usage scenario: 2,100 kWh a year — exactly half the CRU typical figure — and we say so on every number. These are our computed scenario costs, not the Estimated Annual Bills suppliers publish.

Why bother? Because halving your usage does not halve your bill. The standing charge, the PSO levy and (on prepay) the meter service charge are fixed — you pay them at 0 kWh. At 2,100 kWh those fixed costs are between roughly a fifth and a third of the total, which means the supplier with the cheapest unit rate is frequently not the cheapest supplier for you. On our numbers the order genuinely flips: Flogas beats Yuno at typical usage, Yuno beats Flogas at 2,100 kWh.

The ranking below is ordered by our computed year-1 cost at 2,100 kWh, urban (DG1), including standing charge, PSO levy and 9% VAT — cheapest first, arithmetic shown in full. All nine suppliers in our dataset sell electricity, so all nine are ranked. matched.ie is not a CRU-accredited comparison site (those are Bonkers, Switcher, PowerToSwitch and EnergySwitch — see cru.ie for the accredited list); this is an editorial ranking built on rates we verified on each supplier’s own site on 28 August 2026.

How did we rank energy suppliers for low usage?

One formula, applied to every supplier’s current new-customer electricity plan:

unit rate (inc VAT) × 2,100 kWh + annual standing charge (inc VAT) + PSO levy €19.10 (inc VAT) = our year-1 scenario cost.

Three things to know about that formula. First, 2,100 kWh is our chosen scenario, not an official figure — there is no CRU "low user" average, so we set one and labelled it: half of the CRU typical 4,200 kWh, which suits a one-to-two-person apartment or a rarely-home house without electric heating or an EV. Check a recent bill for your own annual kWh before you lean on any of these numbers. Second, residential electricity VAT is 9% and every figure on this page already includes it. Third, where a supplier does not print its standing charge on the rate note we verified this week, we derived it from that supplier’s own published 4,200 kWh EAB (EAB minus unit cost minus PSO) — marked † below. Because standing costs don’t change with usage, the scenario total comes out identical either way.

We ranked each supplier on its cheapest current flat-rate plan we could compute honestly at 2,100 kWh — the exact plan is named in every row, and plans that need a smart meter are flagged. Time-of-use and dynamic tariffs are excluded from the totals because their cost depends on when you use power, so no honest single figure exists for them.

What does each supplier cost at 2,100 kWh a year?

Here is the full arithmetic, urban (DG1), year 1. Every total is our computed scenario — no supplier publishes a 2,100 kWh bill. Year 2 re-runs the same formula at the standard rate each discount plan reverts to.

* Needs a smart meter. † Standing charge derived from the supplier’s own published 4,200 kWh EAB minus unit cost and PSO (checked 28 Aug 2026); the row total is exact either way. ‡ Year 2 uses the 40.14c standard flat smart rate implied by Energia’s published year-2 EAB. § Prepay rows: standing charge plus the prepayment service charge bill-pay customers do not pay (Prepay Power: €342.69 + €131.29 inc VAT from its published rate card). Yuno’s year-2 dash: its Standard Plan unit rate was not on the rate note we verified this week, so we print no figure rather than guess.

The same year-1 totals as bars — the gap between the cheapest bill-pay deal and prepay is over €500 a year even at low usage:

The winner needs its caveats stated. SSE’s 1 Year Fixed V6 is cheapest at 2,100 kWh for two reasons — a 24.63c fixed unit rate and the lowest bill-pay fixed costs in the table — but it carries a €100 early-exit fee, double the €50 most bill-pay plans charge, and fixed plans are withdrawn and repriced regularly, so check the current version on SSE’s site. Energia’s and Electric Ireland’s flat smart-rate plans need a smart meter (no time-of-use juggling — one rate all day); without one, Energia’s Standard 24 Hour plan comes out at €911.17 and Electric Ireland’s EnergySaver 16% at €940.81 on the same formula. Yuno also requires a smart meter, is app-only, and charges €100 to leave early. Our full teardowns: SSE Airtricity, Energia, Electric Ireland.

Why does the standing charge dominate a low-usage bill?

The standing charge covers your connection to the network — meter reading, ESB Networks costs, billing — and it is completely indifferent to how little you use. On a 4,200 kWh bill it hides. At 2,100 kWh it is the second-biggest line on the bill, and on prepay it is closer to the biggest. Here is the standing charge (plus prepay service charge where it applies) as a share of each supplier’s year-1 scenario total:

So who has the lowest standing charge? On the plans we verified this week, Yuno’s roughly €219 a year (derived from its own published EAB) is the lowest, followed by SSE’s fixed plan at about €241†, Bord Gáis at about €245† and Electric Ireland’s verified €250.76. Energia charges €265.01, Community Power €274.52 and Flogas €305.68 — an €86-a-year spread between Yuno and Flogas before a single unit is burned. Note SSE’s figure is specific to the fixed plan, which fixes a lower standing charge than its discount plans; and no supplier discounts the standing charge in its new-customer percentage — those "28% off" offers apply to units only.

Two fixed costs sit on every bill regardless of supplier: the PSO levy (€19.10 a year including VAT at the rate current on 28 August 2026, billed monthly), and — if you are on prepay — a service charge of roughly €131–€164 a year that bill-pay customers simply never pay. That service charge is why prepay fills the bottom two places of a low-usage ranking; the full picture is in our prepay electricity ranking.

What is the cheapest-unit-rate trap?

The trap: sorting suppliers by cents per kWh and signing the top row. At low usage that sort is actively wrong, because the fat standing charge that often funds a skinny unit rate never shrinks with your usage.

Our dataset has a perfect live example. Flogas charges 31.68c a unit; Yuno charges 34.85c — Flogas looks over three cents cheaper. But Flogas’s standing charge is €305.68 against Yuno’s roughly €219. At the CRU typical 4,200 kWh, the cheap units win: Flogas €1,655.34 versus Yuno €1,702.02 on the suppliers’ own published year-1 EABs. Halve the usage and the result flips — at 2,100 kWh our scenario puts Yuno at €970.17 and Flogas at €990.06. Same week, same verified rates, opposite answer, purely because fixed costs weigh twice as much when usage halves.

The lesson generalises: every euro of standing-charge difference matters exactly twice as much to you as it does to the CRU-typical household, and every cent of unit-rate difference matters half as much (a 1c/kWh gap is worth €21 a year at 2,100 kWh, €42 at 4,200 kWh). If a comparison table only lets you sort by unit rate — or a supplier’s ad shouts a percentage discount that applies to units only — do this instead: multiply the unit rate by your annual kWh from a recent bill, add the standing charge and €19.10 PSO, and compare totals. That is all this page does.

How much more does a rural (DG2) meter cost at low usage?

ESB Networks charges more to serve a rural connection, so suppliers set a higher standing charge for DG2 (rural) meters than DG1 (urban) — the unit rate itself does not change. That premium is a fixed euro amount, which means it stings a low-usage home twice as hard in percentage terms. Rerunning our 2,100 kWh formula with each supplier’s rural standing charge:

† Computed from the supplier’s published rural EAB minus unit cost (unit rates are the same urban and rural; only the standing charge differs). Electric Ireland’s row uses its 24h EnergySaver plan because it does not publish a rural figure for the smart-flat plan. Yuno prints its unit rate as an urban figure and Flogas and Pinergy publish no rural EABs on their plan cards, so we show dashes rather than guesses.

The premiums run €46–€72 a year on bill-pay (over €100 on prepay). At 4,200 kWh that is a 3–4% surcharge; at 2,100 kWh it is 5–8%. The ranking order barely moves — SSE stays cheapest, Energia second — but rural low-usage homes should treat Community Power’s €45.75 premium, the gentlest verified rural uplift in the table, as a genuine point in its favour, alongside its €0 exit fee.

Is NightSaver worth it in an apartment?

Almost never at low usage — and it is worth spelling out why, because a day/night meter sounds like an obvious saving. A NightSaver (day/night, MCC02) meter configuration charges you two rates: a cheaper one in the 23:00–08:00 window and a dearer-than-24h day rate the other fifteen hours, plus a higher standing charge than the same supplier’s 24-hour tariff — the premium the network charges for the two-register meter.

Both penalties are visible in our verified data. Pinergy’s rate sheet prices NightSaver day units at 39.35c against 38.32c on its 24-hour plan (ex VAT), and notes the higher NightSaver standing charge outright. Community Power charges 34.72c by day on its day & night tariff against 33.11c flat on its 24-hour plan (inc VAT). So the deal is: pay more per unit all day, pay more per year to be connected, and earn it back only if a large slice of your load runs at night.

An apartment’s load is the opposite shape. The fridge draws around the clock, but the kettle, hob, laptop, shower, washing and telly cluster between 8am and 11pm — squarely in the dear window. With only 2,100 kWh a year to spread, the night units you could genuinely shift (a delayed-start washing machine, some water heating) rarely cover the higher standing charge, never mind the day-rate premium on everything else. If your meter is already NightSaver you can still switch supplier normally on it — but do not request one for a low-usage home, and if you have all-day load, ask your supplier what the 24-hour equivalent costs. Night-heavy households are a different story: see the night-rate ranking and, if you charge a car, the EV tariff ranking.

What should you check beyond the year-1 price?

A five-minute checklist before you commit — low-usage homes get burned by fixed charges and exit terms, not unit rates:

• Find your real annual kWh. It is on any bill, or your smart-meter data. If you use 3,000+ kWh, our scenario understates your bill — the cheapest electricity ranking prices everyone at the CRU 4,200 kWh instead.
• Price year 2 before you sign year 1. Discounts last 12 months; on our 2,100 kWh formula SSE goes from €777.47 to €1,146.67 at its standard rate, Flogas from €990.06 to €1,248.78. Diary month 11 and switch again — the mechanics are in year 1 vs year 2.
• Check the exit fee. €50 per fuel is the market norm (Energia, Electric Ireland, Bord Gáis, Flogas); SSE’s fixed plan and Yuno charge €100, Pinergy €150 ex VAT, and Community Power charges nothing at all.
• On prepay? The service charge (about €131–€164 a year) plus higher unit rates cost a low-usage home roughly €270–€500 more than the best bill-pay deals in our table. Prepay buys budget certainty, not value.
• Mind announced rises. Pinergy’s unit rates go up 7.6% from 14 September 2026, and Yuno’s plans are variable — the price can move mid-contract with notice, as it did in July 2026.
• Switching is the easy part. MPRN off a bill, a meter reading, 2–4 weeks, supply never cuts — the full walkthrough is in how to switch energy supplier.

And if your low usage comes with low occupancy — a rented flat you may leave mid-lease — weigh Community Power’s no-contract, no-exit-fee structure and the change-of-occupancy rules in the renters ranking before chasing the last €50 of year-1 discount.

Keep reading

• Best energy in Ireland: the flagship supplier ranking.
• How to switch energy supplier: MPRN, GPRN, cooling-off — supply never cuts.
• Year 1 vs year 2 energy prices: the discount cliff every ranking here prices in.
• Find your energy: 30-second matcher.

About the author

Conor Ryan

Energy Switching Analyst

Conor Ryan has tracked Irish gas and electricity prices, tariffs and switching since 2019. He builds matched.ie’s energy comparison tools and tests how smart meters and time-of-use plans affect household bills.

7+ years analysing Irish energy marketsCertified in Energy Efficiency (SEAI) and Electricity SupplyFocus on SSE Airtricity, Electric Ireland, Energia and Bord GáisBased in Limerick, covers domestic and small-business tariffs