Wholesale Electricity Prices Jumped 93% in a Year: What It Means for Irish Bills

Wholesale electricity prices in Ireland were 92.8% higher in September 2026 than a year earlier, according to new Central Statistics Office figures. Prices also rose 6.8% in the month from August, driven by higher oil and gas prices as the war in the Middle East continues. Retail bills follow wholesale prices with a lag, so the pressure on winter and spring bills is not over.

What Changed in September 2026?

The CSO's wholesale price index, published on 27 October, shows the year-on-year jump alongside a smaller monthly rise. According to the CSO release reported by RTÉ:

• Wholesale electricity rose 6.8% between August and September 2026.
• It was 92.8% higher than in September 2025.
• It remains 53% below the August 2022 peak.
• All energy fuels, including petrol and diesel, rose 10.9% in the month and 47.6% in the year.

*Figures from the CSO Wholesale Price Index, September 2026, published 27 October 2026.*

Why Are Wholesale Prices Rising So Fast?

Ireland's electricity price is set by the most expensive plant needed to meet demand, which is usually gas. When international gas and oil prices rise, Irish wholesale electricity follows, even on windy days.

The CSO links the September increase to the war in the Middle East, which has pushed up oil and gas prices. September 2025 was a relatively cheap month, so the annual jump looks dramatic, but the direction is clear.

Will Your Bill Go Up Again This Winter?

Several suppliers have already moved. At the time of writing October 2026:

• Bord Gáis Energy raised electricity prices 8.8%, about €177 a year, from 9 October.
• Energia raised prices 4.73%, about €87 a year, from 12 October, with night rates rising faster than day rates.
• SSE Airtricity raised its electricity unit rate 9.4% from 5 October.
• PrepayPower has frozen prices until at least March 2027 for around 200,000 accounts.
• The PSO levy fell 66% to €0.51 a month excluding VAT, about €6.67 a year including VAT, from 1 October.
• Budget 2027 contained no universal electricity credit.

Suppliers hedge months ahead, so wholesale prices do not move bills euro for euro. But a 93% annual increase leaves little room for cuts, and the regulator requires repayment plans of at least 18 months for customers in arrears.

How Do You Protect a Household From Wholesale Price Swings?

You cannot control the wholesale market, but you can cut how much electricity you buy at those prices.

• Solar panels generate power you use before it reaches the meter. A self-consumed solar unit is worth about €0.35 in avoided grid electricity, against about €0.18 to €0.20 for an exported unit.
• A home battery shifts daytime generation into the evening, lifting self-consumption from 30% to 40% without storage to 70% to 80% with it.
• A night-rate tariff and a smart charger move EV charging to the cheapest hours. Our smart EV chargers can be scheduled to start when the cheap rate begins.

*Figures correct as of October 2026. Tariff rates and grant amounts are subject to change.*

A typical 4 kWp system generates around 3,700 kWh a year in Ireland. Self-consuming 40% of that at €0.35 is worth roughly €520 a year. A battery lifting self-consumption to 75% takes that to roughly €970, which is why the €600 battery grant for existing solar owners has changed the maths.

What Should You Do Before the Next Price Move?

The cheapest unit is the one you do not buy.

• Check your unit rate and standing charge against current offers, and whether you have a night or smart tariff.
• If you have solar already, price a battery before next winter, when the €600 grant and 0% VAT with solar both apply.
• If you are starting from scratch, get a quote sized to your real consumption, including an EV. Our guide to SEAI grants for solar sets out the amounts.
• Apply for SEAI approval before any work starts, because applications are not accepted for installations already begun.

Final Thoughts

A 92.8% annual rise in wholesale prices will not become a 92.8% rise in your bill, but it explains the autumn increases and the risk of more. Households that cope best use less grid electricity at peak prices, through solar, a battery and timed EV charging. None of those decisions need to wait for the next market signal.

Ready to Cut Your Exposure to Wholesale Prices?

WattCharger designs solar, battery and EV charger systems for Irish homes, handles the SEAI application and completes the ESB Networks notification. Book a free consultation and we will show you what your roof can generate and what a battery would add at today's rates. Visit our solar panel page to get started.