Network and Supply Costs Shape Irish Electricity Bills

The price Irish households pay for electricity is heavily influenced by both the cost of supplying energy and the expense of maintaining and operating the national grid. These two factors interact in complex ways to determine the final bill.

Energy and Supply Are the Largest Drivers

Recent analysis finds that energy and supply costs are the single largest component of Irish electricity prices. These costs include the wholesale price of electricity, which is closely tied to international gas prices, as well as the expenses suppliers incur to operate their businesses and manage customer service. The Economic and Social Research Institute (ESRI) and other sources consistently point to energy and supply as the main reason for recent price increases, especially during periods of volatility in global energy markets.

Supply costs also reflect the business side of electricity provision—covering wages, advertising, digital platforms, and customer management. While these are a smaller share of the bill compared to wholesale energy, they are still significant and can vary depending on the supplier’s size and efficiency.

Network Costs Are Elevated but Stable

Network costs represent the expense of transporting electricity from generators to homes and businesses. In Ireland, these costs are considered elevated compared to some European peers, but they have not been the main source of recent price spikes. Instead, network charges have remained relatively stable over time, even as energy and supply costs have fluctuated.

Network costs are determined by regulated bodies and include both standing and variable charges for using the transmission and distribution systems. These charges are designed to recover the costs of building, maintaining, and operating the grid infrastructure, which is essential for reliable electricity delivery.

Breaking Down the Bill

Irish electricity bills are made up of multiple cost elements, but they can be grouped into a few broad categories. According to recent analysis, the cost of making electricity—driven by wholesale prices—accounts for about 35% of a typical bill. The cost of moving electricity through the grid makes up roughly 20%, while managing and operating the grid adds another 25%. Supplier costs and margins contribute about 10%, and government policy elements such as levies and VAT make up the final 10%.

It’s important to note that these proportions can shift over time, especially as wholesale energy prices change. For example, between 2019 and 2025, the wholesale electricity price for a typical urban household increased by €270, while network-related charges rose by smaller amounts.

Why Network Costs Remain High

There is evidence that Irish network costs are higher than in some other European countries. This may reflect the cost of maintaining a geographically dispersed grid, investment in infrastructure upgrades, and regulatory decisions. However, these costs have not been the main driver of recent price increases. Instead, they have provided a relatively stable—if elevated—base on which more volatile supply costs are layered.

Some analysts point out that the network and generators were largely built and paid for in previous decades, so ongoing costs are mainly for maintenance and operation rather than new construction. Nonetheless, any new investments or regulatory changes can affect these charges in the future.

The Interplay Between Supply and Network Costs

While energy and supply costs are more volatile, network costs are less likely to fluctuate sharply from year to year. This means that when wholesale prices spike—often due to changes in international gas markets—consumers see a rapid increase in their bills, while the network portion remains steady. Conversely, even if supply costs fall, the network charges provide a floor below which bills are unlikely to drop.

This interplay helps explain why Irish electricity prices can remain high even when some cost elements are stable or falling. The structure of the bill means that reductions in one area may be offset by increases or persistence in another.

Competing Views on Cost Drivers

There is broad agreement among analysts that energy and supply costs are the main source of recent price increases, but some debate remains about the relative impact of network costs. Some sources highlight the elevated level of network charges in Ireland, while others focus on the volatility of wholesale energy prices as the key factor. The consensus is that both play a role, but their influence can shift depending on market conditions and regulatory decisions.

The main drivers of annual change in absolute Euro terms for this archetype between 2019 and 2025 are: Wholesale electricity price increased by €270; Demand System Services Charge increased by €85; Imperfection charges increased by €40; Supplier Capacity charges increased by €37.

Ultimately, the complexity of the Irish electricity market means that no single factor can fully explain price movements. Both network and supply costs are essential to understanding the full picture.

For those looking to manage their electricity costs, keeping an eye on both wholesale market trends and regulatory changes to network charges is a practical next move. Comparing suppliers and understanding the breakdown of your bill can also reveal where savings might be possible.