A rate is only
part of the bill.
Know the whole cost.
Check TEM’s published out-of-contract unit price, identify the extra charges and compare your next electricity contract.
No obligation to accept a quote · Commission explained before agreement
TEM out-of-contract rates:
what sits beside 29p?
A useful comparison starts with the full cost for your meter. We would not call a tariff expensive or good value from its unit rate alone.
Standing and other site charges are additional.
TEM still links to this OOC page. It gives no start date and no numerical HH standing or capacity tariff. Use the figure as a published reference and confirm your account’s current charges.
| Charge | Published position | What to establish |
|---|---|---|
| Standing / distribution & schemes | Amount not published | Ask for the HH site’s charge and what it includes. Do not substitute the NHH £3.54/day figure. |
| Transmission (TNUoS) | Amount not published | Check the applicable site band, charging period and whether the price is a forecast or a billed amount. |
| Agreed capacity | Amount not published | Match the reserved kVA, charge unit and billing period. Agreed capacity is different from annual kWh consumption. |
| Metering and data services | Amount not published | Confirm which services TEM bills and which you pay directly. Avoid counting the same service twice. |
| Reactive power / excess capacity | Where applicable | Check actual charges and their triggers; they are not universal fixed additions. |
| Climate Change Levy and VAT | Tax treatment varies | Standard estimate: 0.801p/kWh CCL and 20% VAT. Relief depends on the supply and qualifying use. |
Charge categories: TEM OOC page ↗. The checks in the final column are Smart Energy’s comparison guidance.
Compare the same things on both sides.
Some offers bundle costs into a unit rate; others show them separately. Ask for the annual total, the items included, and which costs can change. At 50,000 kWh, each 1p/kWh difference equals £500 a year before tax — a difference that additional charges can offset.
Check my bill or renewal offer ↗Why does the source also mention NHH meters?
The same page lists 32.68p/kWh for NHH and an additional £3.54/day , alongside other charges. That £3.54 is not described as the complete bill’s standing charge.
TEM’s current homepage ↗ describes RED for HH businesses. We have kept this calculator HH only. Ask for written eligibility confirmation for any other setup.
Are RED contract prices and OOC charges the same structure?
No assumption should be made. TEM’s current RED Day/Night Fixed page ↗ explains the contracted product’s included and pass-through components. It does not establish that the same inclusions apply to the OOC figure. Compare your actual contract, tariff notice and itemised bill.
Start with the unit charge.
Add what you know.
This estimates a subtotal at today’s checked rates. Unpublished charges stay visible as missing information.
Add your annual site charges (optional)
Use the combined annual amount from your OOC bill or written schedule, before VAT/CCL. Include relevant standing, transmission, capacity and metering charges once each. Exclude the 29p energy charge, tax and separately invoiced third-party services. Leaving this blank means “not included”.
Could a different tax treatment apply?
Standard mode uses 20% VAT and 0.801p/kWh CCL. HMRC’s temporary 0% electricity VAT rate applies to qualifying use in Great Britain from 1 October 2026 to 31 March 2027; qualifying domestic and non-business charity use can also be exempt from CCL. Charity status or annual usage alone does not establish eligibility.
The relief mode assumes the whole electricity supply qualifies. Mixed use, Climate Change Agreements and separately billed services need their own check. HMRC VAT guidance ↗ · CCL guidance ↗
Annual electricity use × 29p, plus any annual charges entered, plus selected CCL, then VAT on that subtotal including CCL. Average month = annual subtotal ÷ 12. Annualised at the checked rates, not a forecast of the next 12 months.
£17,880.60 annualised subtotal · includes 20% VAT + CCL
This is not the full bill. Standing, transmission, capacity, metering and other applicable site charges are excluded.
We’ll check the bill and available offers for your actual meter. No assumed saving or complete-bill price.
Check the terms.
Plan the change.
Start with the supply agreement, expiry date and any written OOC notice. A half-hourly meter does not, by itself, determine which switching protections apply.
Check my contract position ↗Qualifying microbusinesses
Ofgem removed termination-notice requirements at fixed-term expiry and on out-of-contract arrangements for qualifying microbusiness customers. Evergreen arrangements can differ. Do not assume every business described as an SME has the same status.
Still in a fixed term?
Those protections do not generally create a right to leave an unexpired fixed contract early. We can compare a future start date and check any permitted objection or exit condition.
TEM account terms need checking
We have not verified a current public TEM supply-terms document establishing a universal OOC leaving notice. We will check your agreement and applicable rules rather than promise an immediate switch or invent a notice period.
Ofgem electricity supply conditions ↗ · Microbusiness review decision ↗
Thank you. We’ll be in touch.
Your enquiry has been sent to Smart Energy Company. We’ll review the information and contact you about the available options. You have not entered into an energy contract.
Need to add anything? Call 0151 459 3388.
Understand the rate.
Question the total.
Send us the bill, and we can compare the available options.
Is TEM’s 29p rate the whole price?
Are these rates old or out of date?
Does TEM supply NHH meters?
What about deemed rates after moving in?
Can I use this to compare a renewal offer?
Why does the calculator say subtotal?
Who receives the quote enquiry?
Can you check my capacity and metering charges?
Sources & checking dates
Checked 14 October 2026. TEM’s OOC effective date is not stated; this check date must not be presented as the rate’s start date.
