How much can I earn from NESO Demand Flexibility in the UK?

Key takeaways

• How often you participate (and how much you shift) drives earnings.
• Smart meter data usually underpins measurement and verification.
• Rewards may be cash, bill credit, vouchers or points depending on provider.
• Events are often short (e.g., 30–90 minutes) and typically happen on high-demand evenings.

What affects payouts most

Your flexible load

EV charging, immersion heater, tumble dryer, dishwasher and some heat pump routines can be easier to shift than cooking/lighting.

The provider’s reward model

Some pay per kWh shifted/reduced; others pay per event, or use points.

How your “baseline” is calculated

Many schemes estimate what you would have used without the event, then reward the difference.

Who it’s best for

• Homes with EVs or electric hot water heating they can schedule.
• People at home some evenings who can delay appliances.
• Anyone happy to trade a bit of convenience for small, low-risk rewards.

Scenario 1: Flat/terrace, no EV (typical load shifting)

Assumptions (example only): 12 events in a winter season; you take part in 8; you can reduce/shift around 0.4 kWh per event (e.g., delaying tumble dryer/dishwasher and being careful with electric cooking during the window).

If your provider pays per event (e.g., a few pounds for taking part), your total could be higher or lower depending on the rules and how your participation is verified.

Scenario 2: Home with EV (bigger, easier-to-shift load)

Assumptions (example only): 15 events in a season; you join 12; you shift 2.0 kWh per event by pausing/delaying EV charging (or reducing charging power) during the event window.

EV earnings can look better because the “thing you change” (charging time) is simple — but you’ll still need to charge later, sometimes at a higher unit rate depending on your tariff.

Low (0.1–0.5 kWh)
Delaying dishwasher/washing machine, turning down electric heating briefly, avoiding tumble dryer during the window.

Medium (0.5–1.5 kWh)
Tumble dryer moved outside window, immersion heater paused, batch cooking moved earlier/later.

Higher (1.5–4+ kWh)
EV charging shifted, heat pump hot water schedule shifted, storage heater timing adjusted (where controllable).

Good fit if you…

• Can shift 1 kWh+ without hassle (EV/hot water helps).
• Are happy to share smart meter data with a provider (normal for schemes).
• Don’t mind occasional evening notifications and short event windows.
• Like small rewards for behaviours you’re happy to do anyway.

Not ideal if you…

• Need electricity for medical equipment or can’t change usage safely.
• Are on a tariff with high peak rates and struggle to shift usage outside peaks.
• Work patterns mean you miss most events (low participation reduces earnings).
• Expect guaranteed monthly income — these are typically ad-hoc, variable rewards.

1) Baseline can limit earnings

Many schemes compare your event usage to a calculated baseline (your “normal” usage). If you were already using very little, or if your recent days were atypical, the calculated reduction may be smaller than expected.

2) You may just shift usage later

If you pause EV charging during a peak hour, you’ll usually charge later. That’s still helpful for the grid — but your bill impact depends on your tariff (off-peak may be cheaper, or it may not).

3) Smart meter & data sharing requirements

Many providers require half-hourly data access from your smart meter. If your meter isn’t communicating reliably, you may be excluded or miss verified events.

Other watch-outs we see often

• Payment type: rewards might be bill credit, vouchers, points or bank transfer — check what suits you.
• Minimum thresholds: some schemes require a minimum reduction to earn rewards.
• Timing: events can be called at short notice; if you’re out, you may miss them.
• Multiple schemes: joining more than one can be restricted (to avoid double-counting the same flexibility).

Will it cost you anything?

Joining a household flexibility programme is typically free. The “cost” is usually:

• Your time/attention (responding to events).
• Potential inconvenience (moving appliance use).
• Possible tariff implications if you change to a time-of-use deal that doesn’t fit your routine.

1) Do I need a smart meter to take part?

Often, yes. Many schemes rely on half-hourly electricity data to measure your reduction or shift during events. Some providers may offer alternatives, but a communicating smart meter is the most common requirement.

2) Is Demand Flex the same as being on a time-of-use tariff?

Not necessarily. Demand Flex events are typically occasional, time-limited sessions. A time-of-use tariff changes your price by time of day every day. You can sometimes do both, but you should check how the scheme and tariff interact.

3) How do they calculate what I “would have used”?

Most providers use a baseline (an estimate based on your recent consumption at similar times/days). The exact method varies. If you want predictability, look for providers that explain baseline rules clearly in their terms.

4) Can renters join, or do I need to own my home?

Renters can often join if they’re responsible for the electricity bill and meet eligibility rules. If you’re in a property with restrictions on installing devices (like a charger), your flexibility options may be smaller — but basic load shifting can still be possible.

5) Will I be paid in cash?

Sometimes. Other common reward types include bill credit, vouchers, or points. Always check whether rewards expire, whether there’s a minimum payout threshold, and when you’ll receive it (some pay after the season ends).

6) How many events happen each year?

It varies by season and system conditions. Some years see more events than others, and some providers also run their own year-round flexibility sessions. Treat any “expected number of events” as a guide, not a guarantee.

7) Does it affect my Priority Services Register support?

Joining a flexibility programme shouldn’t remove your supplier obligations, but you should never feel pressured to reduce usage in a way that affects health or safety. If you rely on electricity for medical reasons, check with your supplier/provider and consider whether it’s suitable.

8) Can I join if I’m on prepayment?

Eligibility varies. Some schemes are open to prepayment customers, others may not be. If you’re on a smart prepay meter, ask the provider what data access is needed and how rewards are issued (for example, voucher vs credit).

Page information

Written by

EnergyPlus Editorial Team

Reviewed by

Energy Specialist

Last updated

April 2026

How we assess “how much you can earn”

Because household flexibility rewards differ by provider, we estimate earnings using a simple, transparent model and then present a range rather than a single figure.

• Step 1 — estimate flexible kWh per event: based on common household loads you can pause or delay (e.g., EV charging, hot water, appliances).
• Step 2 — estimate participation: we assume you won’t make every event due to work, travel, or short notice.
• Step 3 — apply an illustrative reward band: we show a broad £/kWh equivalent range to avoid implying one provider’s price applies to all.