What is Power Payback and is it worth it?

The wider scheme exists because lowering energy use at peak times reduces the need to turn on fossil fuel power plants². National Grid ESO, now NESO, describes the purpose as making it easier for homes and businesses to take part in the electricity market and be rewarded for shifting when they use electricity³. Smart Energy GB puts it more simply: consumers who move their electricity use will be rewarded with a payment or credit from their energy supplier⁴.

For a household, the appeal is narrow and concrete. Power Payback pays in meter credit, not cash, and only for electricity shifted out of a named window. It does not change the standing charge, the unit rate, or the supply relationship. What it does is turn a smart prepayment meter into a small earning asset for perhaps an hour at a time, a few times a season. Whether that is worth the attention it demands is the question this page sets out to answer.

Power Payback: Utilita's Demand Flexibility Service that pays you to cut back

Power Payback is a Demand Flexibility Service offering, run by the supplier Utilita for its smart prepayment customers⁶. The Demand Flexibility Service itself is the national framework underneath it. Energy Saving Trust describes it as offering rewards for customers who use less electricity during certain periods, available to households with a smart meter². NESO frames the same scheme as a way to make it easier for homes and businesses to take part in the electricity market and be rewarded for shifting when they use electricity³.

The mechanism is demand turn-down: the household is asked to use less at a moment when the grid is tight. Energy Saving Trust states that the service reduces the need to turn on fossil fuel power plants by lowering energy use at these peak times². That is the system-level case for paying households at all.

The scheme has widened since its early iterations. Energy UK notes that the service will now reward customers for both reducing electricity use (demand turn-down) and increasing electricity use (demand turn-up)⁷. Power Payback, as offered to Utilita's prepayment customers, sits on the turn-down side: the household is paid for using less, not more.

Rewards across the service vary by supplier. Energy Saving Trust says rewards vary depending on your supplier, but the more electricity you save during each event the greater your rewards will be². Smart Energy GB describes the reward as pounds or points that you can use towards paying for your energy bills². For Power Payback specifically, the payment is credited to the customer's meter for reducing electricity usage during events¹.

How it works: SMS opt-in, events, and how your reward is calculated

Sign-up happens once, by entering details into a form. After that, each event is opted into individually. The scheme's own wording is that you sign up to the service by entering your details into our form, and we'll send you an individual opt-in SMS when you can reduce your usage¹.

The opt-in message names the day, the window and the rate. It reads: Utilita Power Payback! Reduce your electricity usage [DAY] between [TIME_1] and [TIME_2] and we'll pay you up to £[AMOUNT] per kWh. Normally put the washing on at this time? Try saving this job for later! Reply 'Y' to opt-in or 'N' to opt-out!¹. The amount and the times are filled in for each event, so the rate on offer is visible before the household decides.

Once opted in, a reminder follows. One hour before the event starts, participants receive a reminder SMS specifying the timeframe for reducing electricity usage⁵. That reminder text reads: Thank you for opting-in! Don't forget your Power Payback event, reduce your electricity usage and earn £[AMOUNT] per kWh. The event will run between [TIME_1] and [TIME_2] today¹.

Events are not limited to one a day. This might happen multiple times in a day, and customers can opt in to multiple sessions in the same day¹. Each is accepted or declined on its own.

The reward is calculated from what the meter records inside the window. If you successfully reduce your electricity usage, we'll credit your meter. The more you reduce your usage, the more you'll earn¹. That calculation depends on half-hourly readings, which is why participation requires agreeing to half-hourly data collection⁵.

Who is eligible: smart prepayment customers of Utilita

Eligibility is set by the supplier, and it is narrow. Power Payback is offered to smart prepayment customers of Utilita, who are invited by email¹. The service was available to Utilita prepayment customers with SMETS1 electricity smart meters in 2022/23⁵. That is the meter generation the scheme was first built around.

The requirement is not just a smart meter but a smart prepayment meter, and the two are not the same thing. Smart Energy GB notes that it has a particular duty to make sure low-income, vulnerable and prepay customers benefit from smart meters⁸. The Demand Flexibility Service as a whole is available to households with a smart meter², but each supplier decides which of its own customers it invites.

For a household on a traditional prepayment meter, the route in is a meter change. Smart DCC states that switching from an existing gas or electricity prepay meter to a smart credit meter is straightforward for customers who want to do so⁹. That is a change of meter type, not just a change of tariff, and it moves the household off prepayment rather than onto a smarter version of it.

Participation also carries a data condition. Taking part means agreeing to half-hourly data collection⁵. Without that granularity the supplier cannot see what was used inside the event window, so the reduction cannot be measured and no credit can be calculated. A household unwilling to share half-hourly data cannot take part, whatever meter it has.

What you earn and when the credit reaches your meter

The reward is meter credit, applied to the electricity meter. Within 72 hours, earned credits are directly applied to the customer's electricity meter⁵. That is the scheme's stated timescale, and it is slower than an ordinary top-up: once you have topped up, the credit should appear on your meter within 1 hour¹⁰. A Power Payback credit is a scheme payment, not a top-up, and it arrives on the scheme's clock.

The credit lands on the electricity meter first. Customers can transfer this credit to their gas meter if desired using the My Utilita app⁵. That transfer is a separate step taken in the app, not something that happens automatically, and it is the only route given for moving the value between fuels.

The rate itself is not published as a standing figure. The opt-in text quotes a rate per kWh for that event, expressed as up to a stated amount¹. Because the rate is set per event and the credit depends on how much usage was actually shifted, the amount earned varies from household to household and from event to event. Energy Saving Trust's general statement on the service applies: rewards vary depending on your supplier, but the more electricity you save during each event the greater your rewards will be².

For comparison, other reward mechanisms in the market work differently. ScottishPower's Power Saver credits the bill or meter for energy used during chosen slots, with electricity used charged at the normal unit rate and the credit applied later¹¹. E.ON Next's PowerUp pays bill credit for every kWh of electricity used above the target during two-hour events, usually communicated the day before by email¹³. Power Payback is a turn-down scheme: it pays for using less, not for shifting load into a chosen window.

Is it worth it? What a household should weigh

The case for taking part rests on effort against reward. The household gives up an hour of normal use, or moves it, and receives meter credit within 72 hours⁵. The rate is quoted per event and expressed as up to a stated amount per kWh¹, so the value depends on what the household would have been using in that window anyway. A household that can genuinely defer a wash, a charge or a heating boost loses little; one that cannot simply declines the text.

The wider evidence on demand-side response is positive but general. Parliament's research service states that demand side response could make household energy bills cheaper¹⁴. That is a system-level finding, not a promise about any one household's bill, and it does not quantify what Power Payback pays.

For context on how long energy measures take to repay, official guidance on economic feasibility tests uses a benchmark of a payback of the initial cost within 15 years through energy savings¹⁵. That is a test for physical measures such as insulation, not for a flexibility scheme, and the two are not comparable in scale. A Power Payback credit arrives within days; a fabric measure repays over years. Independent guidance puts plug-in solar at a payback period of five to ten years¹⁶, and domestic PV at a financial payback of between 10 and 15 years¹⁷. Those are capital measures with capital costs. Power Payback has no capital cost at all, which is the main thing in its favour.

What a household should weigh is therefore not payback in years but attention. The scheme pays for behaviour, not equipment, and it pays only when an event is called and only for the reduction achieved. It does nothing for the standing charge, the unit rate or the source of supply. For a household already on a smart prepayment meter with Utilita, the barrier to entry is a form and a text reply. For anyone else, the barrier is a meter change and a supplier relationship.

Where Power Payback sits among flexibility payments

Power Payback is one of several ways a household can be paid for shifting when it uses electricity, and it is among the narrower ones. The Demand Flexibility Service rewards customers for both reducing electricity use and increasing it, under its fourth iteration⁷. Power Payback, as offered to Utilita's prepayment customers, is the turn-down half of that.

Other suppliers run their own versions. ScottishPower's Power Saver and Power Saver 2 credit the bill or meter for energy used during chosen slots¹¹. E.ON Next's PowerUp pays for use above a target during two-hour events¹³. Power NI's Keypad Reward takes a different approach again, giving free electricity from £1 to £4 for top-ups between £50 and £175 made online or via the app¹⁸. These are not interchangeable: some pay for using less, some for using more at a set time, and some for topping up.

For a household trying to judge Power Payback against the alternatives, the useful comparison is with the general flexibility market rather than with a single rival scheme. The flexibility payments for households page sets out how these schemes differ, and the Demand Flexibility Service worth it page looks at the national scheme on its own terms. Households weighing whether to move load at all may find the shifting electricity use to cheap rates page more relevant, since a time-of-use tariff pays for the same behaviour through the unit rate rather than through a separate credit.

The dependence that remains is worth stating plainly. Power Payback does not make a household independent of the grid, of Utilita, or of the event being called. It pays a small amount, on the supplier's schedule, for behaviour the supplier measures through the meter. The household still buys all its electricity from the grid at the supplier's rates, and the credit is only as reliable as the scheme's continuation. What it does offer is a modest, low-effort return for load that can genuinely be moved, and a reason to look at when electricity is used rather than only how much.