Standing charges explained

The standing charge is the fixed amount you pay your energy supplier for being connected, before you use a single unit. It is usually quoted per day, which makes it look inconsequential — and it is the single most common reason a household picks the wrong tariff.

Quoted per day it is small change. Multiplied out it runs to well over a hundred euro a year on electricity, and the spread between the cheapest and dearest supplier on standing charge alone is itself worth more than €100 a year. For a low-usage household it can be a third of the entire bill.

What it actually pays for

The standing charge is a bundle, and most of it never reaches your supplier.

Network costs are the bulk of it. ESB Networks maintains the poles, wires, substations and your meter, and Gas Networks Ireland does the equivalent for the gas grid. Those networks cost the same to maintain whether your house draws 2,000 kWh a year or 8,000, so the regulated charge for them is largely fixed per connection. Your supplier is billed it and passes it on.

Metering and market operation — reading the meter, running the market messaging system that makes switching possible, settlement between suppliers.

Cost to serve — the supplier’s own overhead of having you as a customer: billing, customer service, credit risk.

Because the first two are regulated and identical for every supplier, the genuine competitive difference between standing charges is smaller than the headline numbers suggest. But it is not zero: suppliers choose how to split their recovery between the standing charge and the unit rate, and that choice is a commercial decision aimed at a particular kind of customer.

Why low users are hit hardest

This is the arithmetic that matters.

Consider two plans. Plan A has a high standing charge and a low unit rate. Plan B has a low standing charge and a higher unit rate. There is a consumption level at which they cost exactly the same — a crossover point. Below it, Plan B wins. Above it, Plan A wins.

A household using 2,000 kWh a year pays the standing charge over 2,000 units; a household using 6,000 pays the same fixed amount spread over three times as many. In effective cents per kWh, the low user is paying vastly more for the same fixed service. This is why a plan advertised as “the cheapest unit rate in Ireland” can be a poor deal for an apartment, a holiday home, or anyone who has just fitted solar panels and slashed their grid consumption.

Solar is the sharpest version of this. A household that cuts imported electricity by 60% does not cut its bill by 60%, because the standing charge does not move at all. The same is true of a very well-insulated house with a small gas demand: the gas standing charge plus carbon tax can dominate a low-consumption gas bill entirely.

How to compare properly

Do not compare standing charges. Do not compare unit rates. Compare total annual cost at your own consumption, which is the only figure that combines both correctly.

To do that you need your annual kWh. It is on your bill, in the consumption summary or the twelve-month bar chart. If you genuinely cannot find it, our comparisons default to the CRU’s typical figures — 4,200 kWh a year for electricity, 11,000 kWh for gas — but a household that is materially above or below those defaults should enter its own number, because that is precisely the case where the standing charge changes the ranking.

Every cost we publish on the electricity comparison and the gas comparison includes the standing charge, the unit charges, VAT at the reduced 9% rate on domestic energy, and — for electricity — the PSO levy of roughly €19 a year that is identical on every plan. Enter your usage and the table re-sorts on your arithmetic rather than ours.

Where discounts land

Advertised discounts do not always apply to the standing charge. Suppliers word this in two ways:

• “X% off unit rates” — the standing charge is untouched.
• “X% off your bill” — the standing charge is included, though the PSO levy never is.

For a heavy user the difference between those two wordings is modest. For a light user it is significant, because the standing charge is a larger share of what they pay — the exact customers a ”% off unit rates” offer looks most attractive to are the ones it helps least. Our estimates apply each supplier’s discount to whichever base its terms actually specify.

Standing charges on gas

Gas works the same way with one addition. Alongside the standing charge and the unit rate, natural gas carries carbon tax, currently about 1.25 cent per kWh including VAT, which rises with each Budget. Some suppliers quote unit rates with carbon tax already included and some quote it separately, which makes hand-comparison of two gas websites unusually error-prone. We normalise it so every gas figure is directly comparable.

A household with a gas boiler used only for hot water in summer can find the fixed portion of the bill exceeds the fuel portion for months at a time. In that situation the plan with the lowest standing charge is likely the right answer regardless of its unit rate.

Can you avoid it?

Broadly, no. Every credit-metered electricity and gas connection in Ireland carries one. The exceptions are narrow:

• Pay-as-you-go meters recover the same costs through a higher effective unit rate rather than a separate line, which usually means paying more overall, not less. Our comparisons do not cover PAYG.
• Disconnecting a gas supply entirely removes the gas standing charge — occasionally the right answer for a house that has moved to a heat pump and left a gas boiler idle, though reconnection later is expensive.

Otherwise, the standing charge is a cost of connection, and the useful response is to make sure you are paying the lowest total that your actual consumption implies. If you have not compared in the last year, start with the switching guide — the process is free, takes a fortnight, and does not interrupt supply.