Cheapest electricity in Northern Ireland (October 2026)
The cheapest electricity tariff for a typical home in Northern Ireland is SSE Airtricity NI 1 Year Home Electricity (Credit) - 24 Hour meter at about £965.97 in the first year. Across the 10 cheapest tariffs from 3 suppliers, costs run up to £1,135.66.
Typical usage: 3,200 kWh electricity a year, urban, direct debit. Estimates include VAT and standard discounts. Compare with your own usage.
| # | Supplier | Tariff | First year | After discounts end |
|---|---|---|---|---|
| 1 | SSE Airtricity NI | 1 Year Home Electricity (Credit) - 24 Hour meter | £965.97 | £1,305.36 |
| 2 | Power NI | Eco Energy — Monthly Direct Debit with online billing | £1,027.11 | £1,092.67 |
| 3 | Power NI | Eco Energy — Quarterly Direct Debit with online billing | £1,043.50 | £1,092.67 |
| 4 | Power NI | Eco Energy — Monthly Direct Debit | £1,048.97 | £1,092.67 |
| 5 | Power NI | Eco Energy — Quarterly Direct Debit | £1,065.36 | £1,092.67 |
| 6 | Power NI | Eco Energy — Standard with online billing | £1,070.82 | £1,092.67 |
| 7 | Power NI | Eco Energy — Standard | £1,092.67 | £1,092.67 |
| 8 | Budget Energy | Billpay 22% Discount | £1,106.83 | £1,106.83 |
| 9 | SSE Airtricity NI | 1 Year Home Electricity (Credit) - 24 Hour meter (DD & eBill) | £1,109.56 | £1,305.36 |
| 10 | SSE Airtricity NI | 1 Year Home Electricity (Credit) - 24 Hour meter (DD & Post) | £1,135.66 | £1,305.36 |
Prices are estimates including VAT, calculated from each supplier's published rates. Discounts, eligibility and rates change often: always confirm with the supplier before switching.
Questions
What is the cheapest electricity in Northern Ireland right now?
For a typical home (3,200 kWh electricity a year, urban, direct debit), SSE Airtricity NI's 1 Year Home Electricity (Credit) - 24 Hour meter has the lowest estimated first-year cost at £965.97, including VAT and standard discounts. After any introductory discount ends it is about £1,305.36 a year.
How are these costs worked out?
From each supplier's published unit rates and standing charges, with VAT, levies and any standard discount applied, for typical annual usage. Your own cost depends on how much you use and when.
How often is this updated?
Every day. Prices are read from supplier websites and price lists, and a tariff is only shown once independent checks agree on its rates.
Is the cheapest tariff the best one for me?
Not always. Discounts usually last 12 months, some tariffs need direct debit or online billing, and day/night or smart tariffs suit different usage. Use the comparison tool with your own usage, and check the supplier's terms before switching.