The five factors that drive Agile savings
Every Agile saving comes from the same source: shifting electricity usage from expensive times to cheap times. The Ofgem price cap unit rate from July 2026 is 26.11p/kWh. Agile overnight rates regularly fall to 2-8p/kWh. Each unit you move from the expensive window to the cheap window saves you the full spread between those two prices, roughly 18-23p per unit.
Five household factors determine how many units you can shift and therefore how much you save.
Flexibility of routine. Can you run appliances outside the 5pm-8pm evening peak? Flexible hours or working from home unlocks the largest savings. The more freely you can choose when to run high-energy tasks, the more you can concentrate them in cheap windows.
Appliance ownership. Washing machines, dishwashers, tumble dryers, and immersion heaters are the workhorses of Agile saving. Each one represents a daily or near-daily opportunity to shift significant energy load to a cheap slot. More appliances means more opportunities.
EV ownership. An electric vehicle is the single most powerful Agile multiplier. Nothing else in a typical household consumes as much electricity per cycle as an EV battery. The saving per charge is large and it compounds daily across a year.
Solar panels or battery storage. These transform the Agile equation from "shift demand to cheap windows" to a full energy arbitrage system. Buy at 3p overnight, store it, use it during peak hours instead of drawing from the grid at 40p. The maths becomes compelling at scale.
Daily engagement with prices. Agile rewards attention. Checking prices once a day using a tool like AgileAlert and scheduling appliances accordingly can make the difference between a mediocre saving and an excellent one. The habit takes 30 seconds. The reward is real money.
These factors compound. An EV owner with flexible hours and a habit of checking prices daily will save three to four times more than a non-EV owner with a rigid 9-5 who never checks the dashboard. Neither of them is doing anything unusual. The first household just happens to have more levers to pull.
Profile 1: EV owners
EV owners are the Agile jackpot. They are the households for whom the tariff was, in many ways, designed.
The numbers are striking. A 60kWh EV battery, the size of a typical mid-range electric car battery, costs £15.67 to charge from empty at the 26.11p/kWh price cap rate. At a typical overnight Agile rate of 4p/kWh, the same charge costs £2.40. The saving per full charge is £13.27.
Most EV owners do not charge from completely empty to full on every charge. But even partial charges accumulate fast. An EV owner who charges 100 times per year, roughly twice per week, saves £1,327 per year on electricity versus a standard variable tariff. That is before any saving on household appliances.
Compared to public charging, the saving is even more dramatic. Public charging in the UK averages 50-80p/kWh. Charging a 60kWh battery at 70p costs £42. The same charge at home on Agile overnight at 4p costs £2.40. For EV owners who previously relied on public charging, switching to home Agile charging is a financial transformation.
Smart EV chargers from manufacturers including Ohme, Indra, and Pod Point integrate directly with the Octopus Agile API, automatically scheduling charging to the cheapest overnight windows without any manual intervention. Set the charger once, tell it your target charge level and departure time, and it handles the rest. The savings happen automatically every night.
EV-owning Agile customers consistently report annual savings of £500-800+ on top of appliance savings, making total household savings of £700-1,200 per year realistic for regular EV users.
Profile 2: Work-from-home households
The work-from-home revolution created millions of ideal Agile candidates without those households necessarily knowing it.
A household where at least one adult works from home has complete flexibility over when they run appliances during the day. They can run the washing machine at 10am when prices are 8p/kWh rather than at 7pm when prices are 35p/kWh. They can run the dishwasher straight after lunch at 11p/kWh rather than after dinner at 30p/kWh. They can pop the oven on at 3pm before prices begin climbing toward the evening peak.
That freedom to shift usage across the full 24-hour cycle, rather than only after children's bedtimes or on weekends, means work-from-home households can realistically shift 50-70% of their daily usage out of peak windows. At 3,500 kWh annual usage, a 60% shift at 18p average saving per unit delivers approximately £378 per year in savings from appliances alone.
Work-from-home households are also the most likely to catch daytime cheap windows, which occur when renewable generation is high. On windy afternoons, Agile prices sometimes dip below 10p/kWh even during working hours. A household monitoring AgileAlert during the day can act on those windows immediately. Colleagues in offices cannot.
Profile 3: Solar and battery owners
Solar plus Agile is one of the most powerful energy combinations available to a UK household today. When you add a home battery, the combination becomes a full energy arbitrage engine.
Solar panels generate electricity during daylight hours, typically peaking between 10am and 3pm. In summer, a typical 4kW solar array generates 4,000-5,000 kWh per year, potentially covering 100-130% of average household electricity needs. In winter, generation drops significantly but the potential for overnight Agile charging increases.
A home battery, charged overnight on Agile at 3-5p/kWh, stores cheap electricity and discharges it during the evening peak window when grid prices are 30-45p/kWh. A 10kWh battery charged at 4p and discharged during peak hours saves approximately 36p per kWh arbitraged, or £3.60 per full battery cycle. Across 300 charging cycles per year, that is £1,080 in arbitrage savings alone.
Combined with solar generation, the economics become compelling. On sunny summer days, the solar panel generates free electricity. Surplus solar exported through the Agile Outgoing export tariff earns variable rates, sometimes significantly higher than the standard SEG export rate during high-demand periods. The battery stores excess solar during the day and cheap grid electricity overnight. The household draws almost nothing from the grid at expensive rates.
Full optimisation of this setup can reduce net annual electricity bills to near-zero or even turn the household into a net credit generator. This is not theoretical. Agile community forums are full of annual reviews from solar-plus-battery-plus-Agile customers who have effectively eliminated their electricity costs.
Profile 4: Large families with lots of appliances
Counter-intuitively, large households do not just have higher bills on Agile. They have higher savings too.
A three or four-bedroom household with a family of four or more runs more appliance cycles per day than a single-person household. More washing cycles, more dishwasher loads, more cooking, more tumble drying. Each of these is an opportunity to shift load to a cheap window. The household that runs a washing machine once per day saves roughly £77 per year by shifting to overnight. The household running three loads per day saves three times as much: roughly £231 per year from the washing machine alone.
A fully equipped family home with a dishwasher (saving £80-90/year), washing machine (saving £77/year), tumble dryer (saving £100-120/year), and regular oven use (saving £40-60/year) can save £300-350 per year purely from shifting appliance timing. Add the standing charge benefit of any fixed-element tariff comparison and the total appliance saving comfortably exceeds £300 per year without an EV in the driveway.
Large families also have more members who can participate in the habit of checking prices. A teenager who learns to delay the dishwasher start until 11pm is contributing real money to the household budget. The habit scales across everyone in the house.
Profile 5: Retirees with flexible daily routines
Retirees represent one of the most reliably successful Agile user groups, though they are often overlooked in conversations about smart tariffs.
The case for retired Agile customers is simple: total schedule flexibility. A retired household with no commute, no school run, and no fixed working hours can run every major appliance at any time of day. There is no structural reason to ever use expensive peak electricity. The 5pm-8pm peak window is an arbitrary period that constrains people with 9-5 jobs. Retirees are not constrained by it at all.
Retired households also tend to have higher electricity usage than the national average because they are home more. Higher usage means more potential load to shift and, proportionally, more savings from shifting it to cheap windows.
Many retirees are also among the most disciplined Agile users. They describe checking prices with their morning tea, planning the day's appliance use around the cheap windows they found, and feeling a genuine sense of engagement and financial control that was absent from their previous flat-rate bills. The habit loop works particularly well for people with time to invest in it.
A retired household with typical usage and full schedule flexibility can realistically save £400-600 per year, approaching or exceeding the EV-owner average, purely through disciplined appliance timing. No EV required. No solar required. Just time, attention, and a willingness to run the dishwasher at midnight instead of 9pm.
Check the AgileAlert live dashboard on any weekday morning to see the full day's prices laid out. The cheap windows are obvious at a glance.
What is your potential? A quick self-assessment
Count how many of the following apply to your household:
One point for each: you have an EV or plug-in hybrid; you have a washing machine that you run daily or near-daily; you have a dishwasher you run daily; you have a tumble dryer; you work from home or have flexible working hours; you are retired or have another reason for full daytime flexibility; you have solar panels; you have or are planning a home battery; you are willing to spend 30 seconds each evening checking prices.
If you scored 1-2 points, expect savings toward the lower end of the range: £150-250 per year.
If you scored 3-4 points, you are in the average-to-good range: £300-500 per year.
If you scored 5 or more points, you are in the top tier: £500-900+ per year. With an EV and solar, you may exceed £1,000 annually.
These are estimates, not guarantees. But the pattern is consistent across thousands of Agile customers. More factors mean more flexibility and more flexibility means more saving. There is no magic. There is only the spread between 4p and 26p, and how many units you can move between those two prices each day.