Northern Ireland electricity tariffs are not subject to the GB Energy Price Cap. Instead, every Power NI price change must be approved in advance by the Utility Regulator. There are no fixed-price plans on the Power NI book; every tariff is a variable rate. Discounts (online billing, direct debit) apply on top of the headline unit rate and pull the effective price down by 2.5% to 6%.
Live prices from our back office
Power NI tariffs available right now
Unit rates and standing charges for every Power NI domestic tariff currently active in our comparator, refreshed automatically against the supplier's price list.
Power NI publishes the same unit rate and standing charge across every UK distribution region today.
No Power NI tariffs are currently priced in our back office for this region. Try another region above, or compare Power NI against every UK supplier on price.
The unit rate and standing charge below come directly from the price list Power NI files with our back office. UK suppliers publish a single all-in unit rate that already includes the 5% VAT and the regulated network charges that your DNO levies for transmission and distribution; we surface them as-is. Annual cost estimates use the Ofgem typical domestic consumption value of 2,700 kWh per year.
Standing charge
Daily charge from Power NI
× 365 days× 365
= Annual standing charge
Unit rate
Charge per kWh used
Includes 5% VAT and regulated network charges
× 2,700 kWh (Ofgem typical)
Unit rates
Peak rate
Off-peak rate
Includes 5% VAT and regulated network charges
Annual energy (50/50 split assumed)
Actual cost depends on how much of your usage falls in the off-peak window — see the supplier for window hours.
Estimated annual cost
at 2,700 kWh typical use
Data refreshed automatically against Power NI's back-office filing — last verified . The annual cost is an illustrative estimate at Ofgem's typical-household consumption (TDCV). Your real bill depends on your usage, meter type and any add-on services.
Prices shown are the current rates Power NI files with our comparator for a typical single-rate meter, including 5% VAT. Final bills depend on your meter type and usage profile.
Learn how UK regions affect your unit rate.
Selectra expert
Which Power NI tariff fits you, and what will you actually pay?
Power NI does not sell a fixed-price tariff in 2026 — every plan is a variable rate approved by the Utility Regulator. The real choice for a Power NI customer is which discount mechanism you sign up to: paper bill, monthly DD + online, EV-specific or Keypad. The cards below explain what each route costs and who each one fits. Figures assume a typical 3,200 kWh / year NI household at the rates in force on 14 May 2026.
Bill Pay Standard (postal bill)
variable · paper bill
Best fit if — You genuinely cannot manage online billing or a direct debit (no internet access, no UK bank account, vulnerable circumstance). Power NI has a duty to keep this tariff available.
Skip if — You can pay by direct debit and read a PDF bill. Staying on this plan when you have those options costs ~£60 a year for nothing in return.
What you'll actually pay
About £1,028 a year on a typical 3,200 kWh household at 32.15p/kWh inc-VAT plus a 12.10p/day standing charge. No exit fee, switch any time. Power NI re-prices the headline rate when the Utility Regulator approves it (typically once or twice a year).
A safety-net tariff for customers without DD or online access — not a competitive choice if you have both.
Bill Pay — Monthly DD + Online (Best Deal)
variable · 6% discount
Best fit if — Every standard credit-meter household with a UK bank account and an email address. This is the default Power NI tariff in 2026 — same operations as the postal-bill plan, just £60 a year cheaper.
Skip if — You drive an EV and charge mostly between 1 a.m. and 8 a.m. (use EV Nightshift instead), or you have storage heaters / Economy 7 wiring (use Bill Pay Economy 7).
What you'll actually pay
About £967 a year on a typical 3,200 kWh household at 30.22p/kWh inc-VAT (post-discount) plus the same 12.10p/day standing charge. ~£60 saved vs the postal-bill plan, set-up takes 5 minutes via Energy Online or 08000 285 455.
The default switch for almost every Power NI credit customer. Free money — do it today.
EV Nightshift — Monthly DD + Online
variable · two-rate EV
Best fit if — EV drivers who can schedule home charging between 1 a.m. and 8 a.m. (winter) or 2 a.m. and 9 a.m. (summer). Also a strong fit for households with night-storage heaters or thermal stores.
Skip if — Your EV charges mostly during the day (use EV Anytime), you do not have a smart-enabled charger or timer, or your day-rate consumption dominates your bill (the 35.14p/kWh day rate is higher than Bill Pay).
What you'll actually pay
On a typical 3,200 kWh household with 40% night-shifted load, about £910 a year (day 35.14p, night 16.80p, 12.10p/day standing charge). ~£50-£100 more saved than Bill Pay Monthly DD if you can actually shift consumption — less if you cannot.
The cheapest path to EV charging in NI in 2026 — but only if you genuinely schedule overnight.
Keypad Reward (prepayment via app)
prepayment · 2.5% + bonus
Best fit if — Households with a Keypad meter who want to keep prepayment but maximise discounts. Top up £50+ online or via the app to claim the Keypad Reward £1-£4 free credit on top of the 2.5% Keypad discount.
Skip if — You only ever top up at PayPoint or the Post Office (you lose the Reward bonus) or you can switch to a credit meter (a Bill Pay Monthly DD + Online customer pays less per kWh).
What you'll actually pay
On a £150 top-up: about 30.53p effective per kWh after both the Keypad discount and the £4 Reward bonus — vs 31.34p for standard Keypad and 32.15p for postal Bill Pay. Annual saving for a typical Keypad household: ~£25-£40 vs standard Keypad if you consistently top up £50+ online.
The best prepayment option in NI in 2026 — top up online, not at the shop counter.
All figures assume a typical 3,200 kWh / year NI single-rate electricity household at the Power NI tariffs in force on 14 May 2026. Your actual bill depends on your real annual kWh, your meter type and whether you qualify for the Warm Home Discount. Always run a quote in the Selectra NI electricity comparator before signing.
How to compare UK tariffs
Three numbers that decide your bill
1
Unit rate (p/kWh) — the cost of the energy you actually use. The Energy Price Cap caps the unit rate on the default (Standard Variable) tariff. Fixed tariffs are usually slightly above or below the cap.
2
Standing charge (p/day) — what you pay per day even if you use zero energy. Covers network costs, smart-meter rollout and policy levies. About 53p/day for electricity and 32p/day for gas on a typical 2026 tariff.
3
Exit fee — what you pay to leave early on a fixed tariff. Typically £25-£75 per fuel. None on Standard Variable. None in the final 49 days of any fixed contract.
Save up to£300per year
Is Power NI the cheapest for your usage?
Headline rates lie. The only way to know is to compare against your real annual kWh. Selectra's comparison uses your postcode + 12-month usage to find the cheapest current deal.
Every UK domestic energy tariff has two components: a standing charge (a flat fee in pence per day, even if you use zero energy), and a unit rate (in pence per kWh you actually consume). Your bill = (standing charge × days) + (unit rate × kWh used) + VAT (5%). Compare both numbers — a tariff with a low unit rate but a high standing charge can cost more than the reverse if you use little energy.
The Energy Price Cap set by Ofgem limits how much suppliers can charge for the default (Standard Variable) tariff. It is reviewed every three months. It does not cap fixed-term tariffs — those can be cheaper or more expensive than the cap depending on wholesale prices.
Most UK fixed-term tariffs include an exit fee (typical range: £25-£75 per fuel) if you switch before the contract ends. You can switch without an exit fee in the last 49 days of your contract. The default Standard Variable tariff has no exit fee.
Many UK suppliers offer 'green' or '100% renewable' tariffs which match your annual consumption with REGO certificates. This is a paper-trail match, not a guarantee that the electrons reaching your home are renewable — but it does fund continued renewable generation. Tariffs marked '100% renewable' below carry REGO backing.
If wholesale prices are forecast to rise, fixing locks in today's price for the contract length. If they are forecast to fall, the Standard Variable tariff (capped by Ofgem) tracks the wholesale market down. The right choice depends on your appetite for stability vs. potential savings — Selectra's comparison tool factors in both.
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