Stop fixing on a single day. Run your energy like a portfolio.
Our trade desk manages over 150 GWh of UK business energy in active flex contracts. In the last 12 months we beat supplier projections by 20%. We do the trading, you keep control, and every decision arrives in writing.
- 150+ GWh
- Under flex management
- +20%
- vs supplier projections (12m)
- D-5
- Default trade — never out of market
A fixed contract is a bet on one day. We don't do bets.
Most commercial energy contracts are decided on a single phone call, on a single day, based on a single set of quotes. If wholesale dropped two weeks later, you missed it. If it spiked the day before, you'd already locked in at the peak.
Flex changes that. Instead of betting on one moment, you spread your volume across tranches and time, you set rules for when we buy, and you let a dedicated trade desk execute against those rules. The result: an average price closer to the market average, protection against the worst spikes, and the ability to actually respond to markets instead of watching them.
Flex isn't more risk. It's more structured risk — risk you've chosen, priced and bounded, instead of risk you've ignored.
What you get with TUS Flex
A combination of strategy, framework and execution — all designed for businesses where energy is a material cost, not a line item to be tolerated.
Average not peak
Instead of fixing your entire volume on one day at one price, we spread purchases across tranches and time so your average sits closer to the market average — not the peak.
Hedge against the spike
A trigger or cap is set on day one of your framework. If wholesale moves through it, we secure your volume immediately — protecting your budget without you having to watch the market.
Tranches and periods
Periods are monthly, quarterly, seasonal or annual. Each period can be split into up to four equally sized tranches and traded non-consecutively — so you can avoid winter months on a downward outlook.
Non-commodity, your choice
Fix or pass-through individual non-commodity components — TNUoS, BSUoS, RO, FiT, CCL — depending on which way the regulated charges are moving.
D-5 default trade
If you choose not to act inside a period, we trade for you at D-5 (five working days before delivery) so you never end up paying default supplier rates.
Reported in plain English
A Purchase Management Schedule (PMS) goes out after every trade — weighted commodity price, percentage volume bought, the rationale, and the next decision window.
Triggers, caps and tranches — explained without the jargon.
On day one of the framework we set a cap — your agreed budget level. Below it we set a trigger. If wholesale moves through the trigger, we secure volume to protect you. If it gaps through the cap, we lock the remaining volume regardless. In a falling market, the cap follows the curve down until it turns — then we buy at the new lower level.
That's it. The complexity is in the execution. The result is a portfolio that captures more of the downside, less of the upside, and never strands you in default rates.
From sign-up to first review, in five steps
The trade desk does the work; you stay in the loop with a written rationale at every milestone.
- 1
Eligibility & sizing
We confirm flex makes sense — typically from 5 GWh upwards, or 1 GWh+ on Multipurchase. Smaller portfolios can join an aggregated basket.
- 2
Strategy workshop
We agree your risk appetite, budget targets, trigger and cap levels, and tranche structure together — written down, signed off.
- 3
Framework agreement
Supplier framework agreed. You hold one contract; we trade within it. Volume tolerance removed where renewables are in play.
- 4
Active trading
The trade desk monitors wholesale daily. When opportunities or risks present, you get a written rationale and we trade with consent.
- 5
Quarterly review
Position vs budget, market outlook, decisions ahead. All evidenced, all in plain English. Renewals are planned 12-18 months out.
Not big enough for full flex? Try Multipurchase.
Multipurchase keeps the supplier-product wrapper but lets you slice the contract into flexible tranches. You get the discipline of flex with the simplicity of a standard supply contract.
Turn complex energy data into clear, simple, cost-saving decisions.
Yolk is our free AI-powered portal for UK business energy. Connect your sites, benchmark your rates, see where you're overpaying, and get alerted before contract renewal or unusual usage costs you money.
- Live multi-site dashboards
- AI insights and benchmarks
- Real-time usage and contract alerts
- Renewable & switching suggestions
Free. No setup fees. No contract. Live in minutes.
- Renewal window opens in 73 days
- Out-of-hours usage 18% above baseline
- Wholesale gas dipped — fix window open
Flex Portfolio — frequently asked questions
Want a written view on whether flex is right for your portfolio?
We'll model your last 12 months of consumption, your contract terms and your risk appetite — and tell you, in plain English, whether flex or multipurchase is the better fit.