See where your business energy is leaking money. Free, in minutes.
Yolk is a free AI energy portal for UK business. Connect one bill and within minutes you'll see how your rates compare to benchmark, where your usage spikes are, when your contract renews — and whether it's time to switch.
- 27%
- Average switching saving
- 30+
- Supplier panel
- £0
- Cost to use Yolk
Turn complex energy data into clear, simple decisions
Yolk is built for finance directors, facilities managers and energy buyers who want to stop fighting spreadsheets and start making decisions.
Multi-site dashboard
Bring every site, every meter and every contract into one view. Filter by region, brand, contract type or supplier — drill into a single MPAN in two clicks.
AI energy insights
Yolk identifies peak consumption periods, anomalies and shift opportunities automatically, and turns them into plain-English recommendations you can action.
Industry benchmarks
See how your unit rate and your total spend per kWh compare to similar businesses in your sector and region. Spot overpaying — instantly.
Real-time alerts
Renewal windows. Unusual out-of-hours usage. Wholesale price dips. Contract anomalies. Yolk alerts you before they cost money — by email, in-app, or as a digest.
Contract validation
Yolk reads your contract and cross-checks every line of your first bill against agreed rates. We surface billing errors automatically — the supplier doesn't get a free pass.
Switching service
When the data says your rates are out, Yolk runs the switch for you across our 30+ supplier panel — 27% average saving, zero disruption, zero hassle.
Yolk is free because the data is the product.
TUS makes money when you decide to switch supplier through us, or when you ask us to run your procurement, flex, voltage optimisation, solar or water project. None of those decisions are forced. Yolk just makes the data easy to read so the decisions are easier to make — for you, and for us.
Five minutes from sign-up to insight
Connect one bill, see your benchmark, and decide whether to do anything about it.
- 1
Sign up
Two-minute form. No card, no contract. Your account is live in under a minute.
- 2
Connect
Add one MPAN or upload one bill — we backfill the rest from public data or via your Letter of Authority.
- 3
Benchmark
Within minutes you see your unit rate, total cost and CO₂ profile vs sector and region benchmarks.
- 4
Get alerts
Yolk watches your usage, your contract dates and the wholesale market. You get a heads-up before something costs you.
- 5
Switch or stay
When the data says it's time, we run the switch across our 30+ supplier panel — or you stay put, with everything documented.
Move from a single price-fix to a portfolio you actively manage.
Our trade desk currently manages over 150 GWh in flex contracts on behalf of UK businesses, and beat supplier projections by 20% in the last 12 months. You stay in control. We do the trading.
A board-ready energy report — without the spreadsheet ordeal.
Energy is one of the few costs that hides inside a tangle of standing charges, non-commodity components, MOP/DC fees, half-hourly settlement quirks and supplier invoicing inconsistencies. Yolk untangles it. You can produce a clean, board-friendly report per site, per brand or per contract — in a couple of clicks.
- Multi-site, one report
Filter by brand or region. Export a PDF for finance or trustees.
- Half-hourly aware
If you have HH data, Yolk uses it. If you don\'t, monthly works.
- Renewal-window alerts
No more auto-rollover at out-of-contract rates.
Yolk Portal — frequently asked questions
Stop wondering. See your business energy in one place.
Yolk is free, supplier-independent, and live in minutes. Open the portal — or talk to a TUS consultant first.